CN118799501A - Three-dimensional color printing model establishment method and interactive operation method - Google Patents

Abstract

The application provides a three-dimensional color printing model establishment method and an interaction method, wherein the three-dimensional color printing model establishment method comprises the following steps: establishing a three-dimensional color model; the three-dimensional color model takes a hue circle as a reference plane, establishes a brightness axis perpendicular to the reference plane, represents the position along the brightness axis direction by brightness values, and represents the radial space distance value from the center of the hue circle to any point by chroma values; acquiring first color data, and mapping the first color data to corresponding positions in the three-dimensional color model; acquiring second color data, wherein the second color data is obtained by converting the first color data through a device color configuration file of the target printing device and a display color configuration file of the current display device; generating a visual color sample based on the first color data and the mapping position of the first color data in the three-dimensional color model; characterizing a display color of the visual color sample by the second color data; and constructing a color printing model by arranging a plurality of visual color samples.

Description

Three-dimensional color printing model establishment method and interactive operation method

Technical Field

The present application relates to the field of digital printing technology, and in particular to a three-dimensional color printing model establishment method and an interactive operation method.

Background Art

In traditional color printing, the printing device is limited by the color it sees, and there will be color deviations between different printing devices, resulting in repeated rework and material waste. When printing the same color on different devices, there will be color inconsistencies. Due to the color difference, users cannot find the color accurately, which ultimately affects the printing effect and printing efficiency.

Summary of the invention

The purpose of the embodiments of the present application is to provide a three-dimensional color printing model establishment method and an interactive operation method, which provides an intuitive color relationship display effect and achieves color consistency between print input and output by constructing a three-dimensional color model and combining visual color samples and color models.

In a first aspect, the present application provides a method for establishing a three-dimensional color printing model, the method comprising: establishing a three-dimensional color model; wherein the three-dimensional color model uses a hue circle as a reference plane, establishes a lightness axis perpendicular to the reference plane, uses lightness values to represent positions along the lightness axis, and uses chroma values to represent radial spatial distance values from the center of the hue circle to any point; obtains first color data, and maps the first color data to a corresponding position in the three-dimensional color model; obtains second color data, the second color data is converted from the first color data through a device color profile of a target printing device and a display color profile of a current display device; generates a visual color sample based on the first color data and the mapping position of the first color data in the three-dimensional color model; represents the display color of the visual color sample through the second color data; and constructs a color printing model by arranging several of the visual color samples.

In some embodiments, after the three-dimensional color model is established, the following steps are included: obtaining a first threshold range of the hue ring to define a hue range; obtaining a second threshold range of the lightness value to define a height range; obtaining a third threshold range of the chroma value to define a radial distance range; and presenting the three-dimensional color model as a regular sphere based on the first threshold range, the second threshold range and the third threshold unit.

In some embodiments, the obtaining of the first color data includes the following steps: obtaining discrete color data, wherein the discrete color data is discretized from a preset basic color model based on a preset data screening strategy; obtaining a conversion relationship between the basic color model and the three-dimensional color model, and converting the discrete color data into corresponding first color data in the three-dimensional color model, wherein the three-dimensional color model is different from the basic color model.

In some embodiments, the discrete color data is obtained by discretizing a preset basic color model based on a preset data screening strategy, including the following steps: the discrete color data is based on using a preset selected color difference value, discretizing the colors in the basic color model according to the equidistance principle to generate a series of discrete color data with uniform color difference, thereby obtaining the discrete color data.

In some embodiments, the discretization of the colors in the basic color model according to the equidistant principle includes the following steps: the basic color model includes three dimensions: lightness value, redness-greenness value, and yellowness-blueness value; the colors in the basic color model are discretized according to the equidistant principle of the three dimensions: lightness value, redness-greenness value, and yellowness-blueness value.

In some embodiments, the discrete color data is based on using a preset selected color difference value to discretize the colors in the basic color model according to the equidistant principle to generate a series of discrete color data with uniform color difference, and the discrete color data is obtained, including the following steps: based on using the preset selected color difference value as the side length of a regular polyhedron, and constructing a regular polyhedron array by a spatial paving method to divide the preset basic color model; determining the reference color point data of the basic color model; the reference color point data coincides with the vertex or center point of a regular polyhedron in the regular polyhedron array, and obtaining the equidistant color difference discrete point data of each vertex of the regular polyhedron in the basic color model, to obtain the discrete color data.

In some embodiments, the lightness value, the redness-greenness value, and the yellowness-blueness value based on the basic color model further include the following steps: obtaining a fourth threshold range of the lightness value to define a brightness range; obtaining a fifth threshold range of the redness-greenness value to define a redness-greenness range; and obtaining a sixth threshold range of the yellowness-blueness value to define a yellowness-blueness range.

In some embodiments, the obtaining of the second color data, wherein the second color data is converted from the first color data through a device color profile of a target printing device and a display color profile of a current display device, further comprises the following steps: generating a print instruction based on all or part of the first color data and sending the instruction to a designated target printing device; obtaining the measured print color data, which is measured by converting the print output through a device profile of the target printing device based on the first color data; and converting the measured print color data through a display color profile of the current display device to obtain the second color data corresponding to all or part of the first color data.

In some embodiments, the second color data is converted from the first color data through a device color profile of a target printing device and a display color profile of a current display device, and further includes the following steps: obtaining part of the known second color data and its corresponding first color data, adjusting the device color profile of the target printing device using a color optimization algorithm, and updating the device color profile; for any given first color data, converting through the device color profile and the display color profile to obtain corresponding second color data.

In some embodiments, the obtaining of the second color data, wherein the second color data is obtained by converting the first color data through a device color profile of a target printing device and a display color profile of a current display device, further comprises the following steps: obtaining all or part of the second color data, and inputting the second color data into a current display for display; obtaining display measured color data corresponding to the second color data, wherein the display measured color data is color data actually displayed by the display; adjusting the display color profile of the current display using a color optimization algorithm according to the second color data and the display measured color data, and updating the display color profile; for any given first color data, converting the data through the device color profile and the display color profile to obtain corresponding second color data.

In a second aspect, the present application provides a three-dimensional color printing model interactive operation method, which determines a three-dimensional color printing model established by the method described in any one of the first aspects of the present application; the three-dimensional color printing model generates a visual color sample based on first color data and the mapping position of the first color data in the three-dimensional color model; the display color of the visual color sample is characterized by second color data; and is constructed by the arrangement of the visual color samples; wherein the second color data is related to a target printing device and a current display device, and is converted from the first color data through a device color profile of the target printing device and a display color profile of the current display device; in response to an interactive operation on the three-dimensional color printing model, the visual color sample is determined to be a printing target color; based on the first color data corresponding to the printing target color, a printing instruction is generated and sent to a specified target printing device.

In some embodiments, the steps include: in response to the interactive operation on the three-dimensional color printing model, the printing target color is divided into a plurality of printing target color subsets according to a preset equidistant hue value distribution, the printing target color subset corresponds to one hue value, and the printing target color subset contains a plurality of printing target colors with different chroma values and/or lightness values; each printing target color subset constitutes a printing target file; or, in response to the interactive operation on the three-dimensional color printing model, the printing target color is divided into a plurality of printing target color subsets according to a preset equidistant chroma value distribution, the printing target color subset corresponds to one hue value, and the printing target color subset contains a plurality of printing target colors with different chroma values and/or lightness values. The printing target color subset includes multiple printing target colors with different hue values and/or lightness values; each printing target color subset constitutes a printing target file; or, in response to interactive operations on the three-dimensional color printing model, the printing target color is divided into multiple printing target color subsets according to a preset equidistant lightness value distribution, the printing target color subset corresponds to one of the hue values, and the printing target color subset includes multiple printing target colors with different hue values and/or chroma values; each printing target color subset constitutes a printing target file; based on the first color data contained in the printing target file, a printing instruction is generated and sent to a specified target printing device.

In some embodiments, the method further includes the following step: in response to a user's color sample selection operation for the three-dimensional color printing model, determining that one or more of the visualized color samples are highlighted in the three-dimensional color printing model.

In some embodiments, the following steps are also included: in response to a user's color sample dragging operation on the three-dimensional color printing model, determining a moving distance and a moving direction corresponding to the color sample dragging operation, determining a dragged distance of the visualized color sample based on the moving distance and the moving direction, and controlling the visualized color sample to move the dragged distance in the moving direction.

In some embodiments, the method further includes the following steps: in response to a user's rotation operation on the three-dimensional color printing model, rotating the three-dimensional color printing model according to the rotation operation.

In some embodiments, the following steps are also included: in response to a user's perspective operation on the three-dimensional color printing model, a simulated depth of field of view of the three-dimensional color printing model is adjusted according to the perspective operation, so as to display a visual color sample located inside the three-dimensional color printing model on a user interface based on the simulated depth of field.

In a third aspect, the present application provides an electronic device, comprising: a processor; a memory for storing processor executable instructions; wherein the processor is configured to execute the three-dimensional color printing model establishment method described in any one of the first aspects of the present application, or to execute the three-dimensional color printing model interactive operation method described in any one of the second aspects of the present application.

In a fourth aspect, the present application provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements the three-dimensional color printing model establishment method described in any one of the first aspects of the present application, or executes the three-dimensional color printing model interactive operation method described in any one of the second aspects of the present application.

In a fifth aspect, the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it is used to execute the three-dimensional color printing model establishment method described in any one of the first aspects of the present application, or to execute the three-dimensional color printing model interactive operation method described in any one of the second aspects of the present application.

This application provides an intuitive color relationship display effect and achieves color consistency between print input and output by constructing a three-dimensional color model and combining visual color samples and color models. By cleverly separating print colors and display colors and converting them using device color profiles, a more accurate preview effect on the display device is achieved, and the color performance on different printing devices and printing substrates can be accurately simulated, reducing printing errors caused by color deviation and improving printing efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic diagram of a flow chart of a method for establishing a three-dimensional color printing model provided in an embodiment of the present application;

FIG2 is a schematic diagram of a three-dimensional color model provided in an embodiment of the present application;

FIG3 is a cross-sectional view of a three-dimensional color model provided by an embodiment of the present application;

FIG4 is a schematic diagram of mapping first color data to a three-dimensional color model provided by an embodiment of the present application;

FIG5 is a schematic diagram of a visualized color sample provided by an embodiment of the present application;

FIG6 is a schematic diagram of spatial coordinates of a three-dimensional color printing model provided by an embodiment of the present application;

FIG7 is a schematic diagram of a flow chart of a three-dimensional color printing model interactive operation method provided in an embodiment of the present application;

FIG8 is a schematic diagram of the structure of a three-dimensional color printing model building device provided in an embodiment of the present application;

FIG. 9 is a schematic diagram of the structure of an electronic device provided in one embodiment of the present application.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

Similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

The technical solution of the present application will be described below in conjunction with the accompanying drawings.

Please refer to Figure 1, which is a flow chart of a method for establishing a three-dimensional color printing model provided in an embodiment of the present application. The method for establishing a three-dimensional color printing model of the present application provides an intuitive color relationship display effect and achieves color consistency between print input and output by constructing a three-dimensional color model and combining visual color samples and color models. By cleverly separating the print color and the display color and converting them using the device color profile, a more accurate preview effect on the display device is achieved, and the color performance on different printing devices and printing substrates can be accurately simulated, reducing printing errors caused by color deviation and improving printing efficiency.

The three-dimensional color printing model establishment method of the present application includes steps S110 to S140:

Step S110: Establishing a three-dimensional color model; wherein the three-dimensional color model uses the hue ring as a reference plane, establishes a lightness axis perpendicular to the reference plane, uses lightness values to represent the position along the lightness axis, and uses chroma values to represent the radial spatial distance value from the center of the hue ring to any point outward.

In color science, the LCH color model is a color space based on human visual perception, which consists of three components: lightness (L), chroma (C), and hue (H). As an example, the three-dimensional color model described in this step can be used as an LCH color model.

Please refer to Figure 2, where hue is the H component in the LCH color model, which describes the type of color, such as red, green, blue, etc. Hue is usually expressed as an angle, ranging from 0° to 360°, indicating the position of the color on the color wheel. In this step, when establishing a three-dimensional color model, the hue circle is used as the reference plane. The hue circle is divided into 24 hue areas, each of which is divided into 8 sub-color areas. The range of each color area is 1.875 degrees, and it is divided into 192 color areas in total, as shown in Figure 3.

Lightness is the L component of the LCH color model, which describes the lightness of the color, that is, the brightness level of the color. The lightness value represents the position along the lightness axis, which can be expressed as a vector parameter in the direction perpendicular to the reference plane of the hue circle. The higher the lightness value, the brighter the color looks. On the contrary, the lower the lightness value, the darker the color looks.

Chroma is the C component in the LCH color model, which describes the purity or saturation of a color, that is, the intensity or vividness of the color. The chroma value represents the radial distance from the center of the hue circle to any point. The higher the chroma value, the more vivid the color looks, and the lower the chroma value, the softer the color looks or closer to gray.

It is understandable that the purpose of step S110 is to establish a spatial coordinate system of a three-dimensional color model, in which the hue circle reference plane, chroma value, and lightness value respectively represent the X, Y, and Z axes of the spatial coordinate system of the three-dimensional color model, as shown in Figure 2.

In the above embodiment, in the three-dimensional color model, the color perpendicular to the hue ring is used to represent the brightness, which is consistent with the human perception of linear changes in brightness, so that the user can intuitively adjust the brightness of the color. The gap distance from the center of the hue ring to the outside is used to represent the chroma, which is consistent with the human perception of radial changes in chroma, so that the user can adjust the vividness of the color by observation. The circular hue ring is used to represent the hue, which perfectly matches the human learning of hue, making the relationship between adjacent colors clearer and easier to understand the concept of complementary colors. Therefore, users can more conveniently compare the differences between different colors, match colors, and find colors accurately and quickly.

Step S120: Acquire first color data, and map the first color data to a corresponding position in the three-dimensional color model.

The first color data may be a color required and defined by a user. The first color data includes: a hue parameter, a chroma value parameter, and a brightness value parameter of the color defined by the user.

For example, the user needs to establish the color data of blue. Based on the description of the three components of lightness, chroma and hue in the previous text, it can be known that when the user determines the hue parameter, chroma value parameter and lightness value parameter of the blue color, it indicates that the spatial coordinate system of the blue color in the three-dimensional color model is determined. According to the hue parameter data, chroma value data and lightness value data of the blue color, the location of the blue color can be determined in the three-dimensional color model. Therefore, the user can find the unique position of the blue color in the three-dimensional color model coordinate system in the three-dimensional color model based on the color data of the set hue parameter, chroma value parameter and lightness value parameter of the blue, as shown in Figure 4.

In some other embodiments, the first color data may be red-green value data in an RGB color mode. For example, the first color data is a red-green value in an RGB color mode, which refers to the numerical ratio of red, green, and blue (Red, Green, Blue, RGB for short).

In some other embodiments, the first color data may also be the yellow-blue value in the CIELab color space, wherein L represents lightness, that is, the depth of the color; a represents the red-green value; and b represents the yellow-blue value.

Step S130: acquiring second color data, where the second color data is converted from the first color data through a device color profile of a target printing device and a display color profile of a current display device.

In this step, the first color data needs to be converted into a color mode that can be understood by the target printing device, that is, the second color data. By separating the print colors that can be printed by the target printing device and the display colors presented by the display device, and converting them using the device color profile of the target printing device, a more accurate preview of the print effect on the display device can be achieved.

In some embodiments, the target printing device includes but is not limited to a reciprocating scanning printer, a one-shot scanning printer, and a multi-nozzle side-by-side scanning printer. The current display device may be a display of a terminal device, including but not limited to a display of a computer, a laptop, a smart phone, or a tablet computer.

Step S140: Generate a visualized color sample based on the first color data and the mapping position of the first color data in the three-dimensional color model; characterize the display color of the visualized color sample by the second color data; and construct a color printing model by arranging a plurality of visualized color samples.

When the user adjusts the chroma value of the blue color or adjusts the lightness value of the blue color as needed, a color change effect of different chromas or lightness of the blue color will be presented in the three-dimensional color model. If the user needs to adjust the color, the hue can be adjusted, and then the chroma value and lightness value can be adjusted, so that the color change effect of other colors other than the blue color can be presented in the three-dimensional color model to meet the color requirements in different scenes, as shown in Figure 5.

Therefore, the user can generate a visualized color sample of the first color data (blue) according to the first color data (such as blue) and the position of the first color data in the three-dimensional color model. In the same way, visualized color samples of other types of colors can be obtained. According to the hue ring divided into 24 hue areas and 192 color separation areas as described above, the user can obtain a series of visualized color samples for representing 24 colors such as yellow, green, and red.

The second color data is used to obtain color data consistent with the color data actually measured by the printing device. Because the printing device can only understand and recognize the second color data, it is necessary to convert the first color data into the second color data that the printing device can understand, and the second color data is used to represent the display color of the visualized color sample on the display device.

Finally, the visual color swatches of all 24 colors are arranged to form a color printing model.

In some embodiments, after step S110, the method further includes steps S111 to S114:

Step S111: obtaining a first threshold range of the hue circle to define a hue range.

As mentioned above, hue is usually expressed as an angle, ranging from 0° to 360°, indicating the position of the color on the color wheel. Therefore, 0° to 360° is taken as the first threshold range of the hue circle to define the hue range.

Step S112: Obtain a second threshold range of brightness values to define a height range.

The range of brightness is usually from 0 (black) to 100 (white), indicating the lightness or darkness of the color. Therefore, 0%~100% is taken as the second threshold range of the brightness value to define the height range.

Step S113: Obtain a third threshold range of chroma values to define a radial distance range.

The range of chroma is usually from 0 (gray, no color) to infinity, but the maximum value of chroma is limited by the color gamut of the specific printing device or display device. In actual color selection, the maximum value of chroma is usually determined according to the capabilities and conditions of the printing device. Therefore, 0%~100% is taken as the third threshold range of chroma value to define the radial distance range.

Step S114: making the three-dimensional color model appear as a regular sphere according to the first threshold range, the second threshold range, and the third threshold range.

Through steps S111 to S113, the hue range, lightness range, and chroma range are defined respectively, which is equivalent to determining the coordinate ranges of the X-axis, Y-axis, and Z-axis in the spatial coordinate system of the three-dimensional color model, thereby constructing a three-dimensional color model with a regular spherical shape, as shown in Figure 6.

It can be understood that, in this spherical three-dimensional color model, each color data has a unique coordinate parameter in this spherical three-dimensional color model.

The three-dimensional color model represented by a sphere allows for more flexible color selection and adjustment in the three dimensions of hue, lightness, and chroma to meet the color requirements of different scenes. The three-dimensional color model represented by a sphere can generate and present color samples, providing a richer form of expression for data visualization.

Because when establishing a three-dimensional color model, the range of variation between the chroma value and the lightness value of colors in the same hue area is small, the color difference of the colors in the same hue area is small, and it is difficult to distinguish them with the human eye. When the colors are printed according to the colors in the visual space color gamut model through a printing device, it is even more difficult to distinguish the differences between each color.

To solve this problem, in some embodiments, step S111 may include steps S1111-S1112:

Step S1111: obtaining discrete color data, where the discrete color data is obtained by discretizing a preset basic color model based on a preset data screening strategy.

Step S1112: obtaining a conversion relationship between a basic color model and a three-dimensional color model, and converting discrete color data into corresponding first color data in a three-dimensional color model, wherein the three-dimensional color model is different from the basic color model.

The basic color model refers to the color data represented by the color that the user sets to be printed, which should have hue value, lightness value, and chroma value. The purpose of discretizing the basic color model is to obtain a series of discrete color data with obvious color differences. If the obtained discrete color data is to be presented on a printing device to show the color difference effect of the color presented by the printing device, the discrete color data needs to be converted into the coordinate system of the three-dimensional color model according to the preset space conversion relationship. Because as long as the obvious color effect can be presented in the three-dimensional color model, then when the printing device performs the printing operation according to the corresponding color in the visualization space color gamut model, it can present a more obvious color printing effect.

In the above steps, a basic color model of a certain color customized by the user is discretized to make the color difference between adjacent colors in this type of color more obvious, and then the discrete color data after discretization is converted into a three-dimensional color model to construct a visual spatial color gamut model.

As an example, taking the blue color customized by the user as an example, the basic color model of blue is discretized so that the color difference between adjacent blue colors among all blue colors is larger, and then the blue discrete color data after discretization is converted to the corresponding blue color data in the three-dimensional color model.

In some embodiments, step S1111 may include step S11110: discrete color data is based on using a preset selected color difference value, discretizing the colors in the basic color model according to the equidistance principle to generate a series of discrete color data with uniform color difference to obtain discrete color data.

Color difference refers to the perceptible difference between two colors. The color difference value can be expressed as the brightness difference between two adjacent colors. The color difference value can be calculated using a variety of calculation formulas, such as CIE76, CIR94, CIEDE2000, CMC, etc. In this embodiment, the color difference calculation formula can be calculated using the CMC formula.

The CMC ( l :c) color difference calculation formula can be pre-set in the memory of the server, as shown in formula ( 1 ). According to the color difference calculation formula, the preset selected color difference value can be calculated. The CMC ( l :c) color difference formula was recommended by the Color Measurement Committee (CMC) of the British Dyers Association in 1984, and introduced the lightness weight factor " l " and the chroma weight factor "c".

Formula (1)

Given two colors A1 and A2, their chromaticity coordinates in the Lab color space are:

Formula (2)

in:

Indicates the lightness coordinate value of color A1;

Indicates the red/green coordinate value of color A1;

Indicates the yellow/blue coordinate value of color A1;

Indicates the lightness coordinate value of color A2;

Indicates the red/green coordinate value of color A2;

Indicates the yellow/blue coordinate value of color A2;

l and c are factors; l represents the lightness weight factor, which adjusts the relative width of lightness; c represents the chroma weight factor, which adjusts the relative width of chroma;

Formula (3)

in:

Indicates the brightness difference between color A1 and color A2;

, Both represent the chromaticity difference between color A1 and color A2;

is the total color difference, expressed as the Euclidean distance between the coordinates of two colors (e.g., color A1 and color A2) in three-dimensional space;

Formula (4)

Formula (5)

in:

Indicates the chroma value of color A1;

Indicates the chroma value of color A2;

Indicates the chroma difference between color A1 and color A2;

Indicates the hue difference between color A1 and color A2.

In CIELab color space, the CMC ( l :c) formula defines the visual volume around a standard color as an ellipse. The colors inside the ellipse are visually the same as the standard color, while the colors outside the ellipse are different from the standard color. The size and eccentricity of the ellipse vary throughout the CIELab color space. The characteristics of the ellipse centered on a given standard color are determined by the relative position of the standard color. , , The chromatic aberration formula CMC ( l :c) is defined by the ellipse equation as shown in the following formula (6):

Formula (6)

Formula (7)

Formula (8)

Formula (9)

Formula (10)

Formula (11)

in:

S _L , S _c and S _H are the semi-axes of the ellipse, and the semi-axes of the ellipse correspond to hue S _H , saturation S _c , and lightness S _L ;

, , are the chromaticity parameters of standard color samples, among which, Indicates the brightness parameter of the standard color sample, Indicates the chroma parameter of the standard color sample, Indicates the hue parameters of the standard color sample;

F and T are related to the hue angle ( ) is used to more accurately reflect the human eye's perception of color differences; where F is a correction term related to the hue angle ( ) and T is another correction term related to the hue angle ( ) related amendments;

Indicates the hue angle difference;

Indicates the red/green coordinate value;

Indicates the yellow/blue coordinate value.

The lightness weight factor l and the chroma weight factor c are used to adjust the influence of lightness and chroma on the total color difference, so different ratios should be used in different applications. A large number of tests have shown that when evaluating the acceptability of color difference, it is recommended to use l :c=2:1, such as the CMC (2:1) formula is mostly used for product quality control in the textile printing and dyeing industry; and when evaluating the perceptibility of color difference, it is recommended to use l :c=1:1, such as the color correction of digital systems, and the CMC (1:1) formula is generally used in industries such as coatings or plastics.

Based on the derivation and calculation process of the above color difference calculation formula, after calculating the selected color difference value, the colors in the basic color model are discretized according to the selected color difference value to generate a series of discrete color data with uniform color difference, thereby obtaining discrete color data.

As an example, the calculated color difference value of 5 can be selected as the color difference value for discretization processing, and the color difference value between the position of each color in the spatial coordinate system of the three-dimensional color model and the position of the adjacent color in the spatial coordinate system of the basic color model is 5. Therefore, according to the equidistance principle, the colors in the basic color model are discretized according to the equidistance color difference value of 5.

In other embodiments, step S11110 may also include: discretizing the colors in the basic color model according to the equidistance principle of the three dimensions of lightness value, redness-greenness value, and yellowness-blueness value; the basic color model includes three dimensions of lightness value, redness-greenness value, and yellowness-blueness value.

The basic color model includes three dimensions: lightness value, redness greenness value, and yellowness blueness value. In this step, the basic color model can be discretized according to the range standard of lightness value, redness greenness value, and yellowness blueness value as the equidistance principle.

As an implementation method, a fourth threshold range of lightness values is obtained to define a brightness range; a fifth threshold range of redness and greenness values is obtained to define a redness and greenness range; and a sixth threshold range of yellowness and blueness values is obtained to define a yellowness and blueness range.

In this embodiment, as an example, the brightness value range is taken as 0%~100% as the fourth threshold range to define the brightness range.

As shown in FIG. 3 , the Lab color model consists of three elements: lightness L and two color channels a and b. The a channel represents the range of color variation from red to green, and the b channel represents the range of color variation from blue to yellow. The a channel value determines the degree of color deviation between red and green. The b channel value determines the degree of color deviation between yellow and blue. It can be understood that the range of variation of the brightness channel in the Lab color model is 0% to 100% in the fourth threshold range of the brightness value described in this embodiment.

The a channel value in the Lab color model can vary from -120 to +120, where +120a represents red and -120a represents green. -120 to +120 can be defined as the fifth threshold range of the red-green value. By adjusting the a channel value to control the red or green component, accurate adjustment and description of the color can be achieved.

The b channel value in the Lab color model can vary from -120 to +120, where +120 represents yellow and -120 represents blue. -120 to +120 can be defined as the sixth threshold range of the yellow-blue value. By adjusting the b channel value to control the yellow or blue component, accurate adjustment and description of the color can be achieved.

In the above-mentioned embodiment, the discretization processing method based on the equidistant principle of multi-level data can realize equidistant color selection of multiple data levels in the three-dimensional color model, ensuring the consistency and comparability of data representation.

In some other embodiments, step S11110 further includes: steps S11111-S11113:

Step S11111: using the preset selected color difference value as the side length of the regular polyhedron and constructing a regular polyhedron array by a spatial tessellation method to divide the preset basic color model;

Step S11112: determining the reference color point data of the basic color model;

Step S11113: The reference color point data coincides with the vertex or center point of a regular polyhedron in the regular polyhedron array, and the color difference discrete point data of the equidistant vertex of each regular polyhedron in the basic color model are obtained to obtain discrete color data.

In step S11110, the preset color difference value of 5 is calculated by the color difference calculation formula, and the color difference value 5 is used as the side length of the regular polyhedron to reconstruct a regular polyhedron array with a side length of 5. The regular polyhedron array can be used to divide data for the basic color model.

The reference color point data in the basic color model can be determined by selecting a point where the vertex or center point of a regular polyhedron in the regular polyhedron array coincides. Since the side length of the regular polyhedron is a fixed value, the equidistant color discrete point data formed by the vertices of each regular polyhedron in the basic color model can be used as discrete color data of the preset color.

Further, in some embodiments, step S130 may include steps S131 to S133:

Step S131: generating a printing instruction based on all or part of the first color data and sending the instruction to a designated target printing device;

Step S132: obtaining the measured color data of the printout, which is obtained by converting the printout measurement through the device profile of the target printing device based on the first color data;

Step S133: converting the printed measured color data through a display color configuration file of the current display device to obtain second color data corresponding to all or part of the first color data.

In digital image processing, the RGB model is an additive color model that generates various colors by combining different intensities of red, green, and blue light. As mentioned above, the first color data of the present application can be color data corresponding to the RGB model, and the RGB model is suitable for luminous display devices. In contrast, the target printing device uses the CMYK color model, which is a subtractive color model that reproduces colors through four colors of ink: cyan, magenta, yellow, and black.

In the above steps, all or part of the first color data (eg, red-green value data in the Lab color space or yellow-blue value data in the Lab color space) is converted into a color mode (eg, CMYK mode) that can be understood by the printing device.

The color management server of the target printing device converts the first color data into the printing measured color data that conforms to the CMYK model, generates a printing instruction according to the printing parameters such as the resolution of the target printing device and the size of the printing substrate (such as fabric), and sends the converted printing measured color data to the target printing device via a network or a data cable.

The target printing device receives the printing instruction from the color management server, parses the printing instruction, and obtains the color value data and resolution information of the CMYK model corresponding to each pixel or printing area. The target printing device controls the amount of ink or toner sprayed by the target printing device according to the parsed instruction.

After the target printing device executes the printing instruction, the color is printed on the printing substrate. In order to measure the measured color of the print, the color blocks of the printout can be measured one by one using a spectrophotometer under a standard light source environment to obtain its spectral data in a standard color space such as the CIE laboratory. In other embodiments, the spectral data in the standard color space of a colorimeter, a spectral imager, etc. can also be collected.

Finally, the printed measured color data is converted through the display color profile (ICC) of the current display device, and the converted data is mapped to the color mode that the display device can display, thereby obtaining the second color data corresponding to the first color data in the original design file.

Furthermore, step S130 may further include steps S134 and S135:

Step S134: obtaining part of the known second color data and its corresponding first color data, adjusting the device color profile of the target printing device using a color optimization algorithm, and updating the device color profile;

Step S135: For any given first color data, convert it through the device color profile and the display color profile to obtain corresponding second color data.

The above steps are mainly to perform calculation simulation replacement on the color data that has not been actually measured, so as to obtain the second color data close to the printed measured color data.

By using a spectrophotometer to measure the color blocks of the printout one by one, the spectral data in the standard color space such as CIE laboratory is obtained to obtain the second color data and the corresponding first color data. It can be understood that the second color data is the measured color data of the printout, and the first color data is the designed print color data.

Use color optimization algorithms to adjust the device color profile of the target printing device. Adjust the tone correspondence curve, color gamut mapping and other parameters in the device color profile. You can choose iterative recovery analysis or neural network for adjustment.

By adjusting parameters such as the tone correspondence curve and color gamut mapping, the color difference can be minimized, that is, the color output by the target printing device is closer to the target color, reducing the visual difference. Among them, the utilization of the color gamut can be optimized, and the color space of the target printing device can be fully utilized to restore more types of colors. Furthermore, the color reproduction effect can be balanced, and the color reproduction effect can be maintained consistently in different color areas, improving the situation of color deviation or color unevenness.

In some embodiments, step S130 may further include steps S136-S139:

Step S136: Acquire all or part of the second color data, and input the second color data into the current display for display;

Step S137: acquiring display measured color data corresponding to the second color data, wherein the display measured color data is color data actually displayed by the display;

Step S138: adjusting the display color profile of the current display using a color optimization algorithm according to the second color data and the display measured color data, and updating the display color profile;

Step S139: For any given first color data, convert it through the device color profile and the display color profile to obtain corresponding second color data.

The above steps are mainly to obtain the measured display color data that is closer to the second color data. To obtain the measured display color data, it is necessary to adjust the display color profile of the current display device through a color optimization algorithm, such as adjusting the tone correspondence curve and color gamut mapping parameters in the device color profile of the display device, and iterative recovery analysis or neural network can still be used for adjustment.

Referring to FIG. 7 , the present application provides a three-dimensional color printing model interactive operation method, including steps S210 to S230:

Step S210: Determine a three-dimensional color printing model.

The three-dimensional color printing model generates a visual color sample based on the first color data and the mapping position of the first color data in the three-dimensional color model; represents the display color of the visual color sample through the second color data; and is constructed by arranging the visual color samples; wherein the second color data is related to the target printing device and the current display device, and is converted from the first color data through the device color profile of the target printing device and the display color profile of the current display device.

The detailed steps of determining the three-dimensional color printing model may refer to step S110 , which will not be described in detail here.

Step S220: In response to the interactive operation on the three-dimensional color printing model, determine the visualized color sample as the printing target color.

When the user needs to call the 3D color printing model, the server or terminal responds to the user's selection operation instruction for the 3D color printing model and retrieves the printing target color of the visualized color sample determined by the user from the 3D color printing model.

Step S230: generating a printing instruction based on the first color data corresponding to the printing target color and sending the printing instruction to the designated target printing device.

As mentioned above, the color management server of the target printing device converts the measured printing color data that conforms to the CMYK mode, combines it with printing parameters such as the resolution of the printing device and the size of the printing substrate (such as fabric), generates a printing instruction, and sends the converted measured printing color data to the target printing device via a network or data cable.

The target printing device receives the printing instruction from the color management server, parses the printing instruction, and obtains the color value data and resolution information of the CMYK model corresponding to each pixel or printing area. The target printing device controls the amount of ink or toner sprayed by the target printing device according to the parsed instruction.

In some embodiments, the following step S240 is included: in response to an interactive operation on a three-dimensional color printing model, the printing target color is divided into multiple printing target color subsets according to a preset equidistant hue value distribution, the printing target color subset corresponds to a hue value, and the printing target color subset contains multiple printing target colors with different chroma values and/or brightness values; each printing target color subset constitutes a printing target file.

After the user retrieves the three-dimensional color printing model, the user can pre-set a print target color subset of the target color to be printed. In this embodiment, the print target colors are divided according to the hue value.

As can be seen from the above description of hue value, hue describes the type of color and can be divided into 24 hues. The hue area of each color can be divided into 8 sub-color areas. Therefore, the 24 hue areas can be divided into 192 color separation areas in total. In the three-dimensional color model of the sphere, the range of each color area is 1.875°. Therefore, the preset equidistant hue value can be 8 as an example, and one of the colors, such as blue, can be further divided into 8 printing target color subsets.

The eight print target color subsets all correspond to the hue value of the same color (such as blue), and the same hue value can contain different lightness values and chroma values. Similarly, according to the same division method as above, 24 color print target color subsets are obtained, and all 24 color print target color subsets constitute a print target file.

Alternatively, in some other embodiments, step S250 is also included: in response to interactive operations on the three-dimensional color printing model, the printing target color is divided into multiple printing target color subsets according to a preset equidistant chromaticity value distribution, the printing target color subset corresponds to a hue value, and the printing target color subset contains multiple printing target colors with different hue values and/or lightness values; each printing target color subset constitutes a printing target file.

After the user retrieves the three-dimensional color printing model, the user can pre-set a print target color subset of the target color to be printed. In this embodiment, the print target colors can be divided according to the chroma value.

As described above, chroma describes the purity or saturation of a color, and the range of chroma values is 0% to 100%, with 10% being used as the arithmetic difference value to divide the chroma values into 10 print target color subsets. Therefore, the preset arithmetic difference chroma value distribution can be 10%, and the chroma values can be divided into 10 print target color subsets.

The 10 printing target color subsets all correspond to the hue value of the same color (such as blue), and the printing colors in the printing target color subsets may contain different hue values and/or lightness values. Similarly, according to the same division method as above, 24 printing target color subsets are obtained, and all 24 printing target color subsets constitute a printing target file.

Alternatively, in some other embodiments, step S260 is also included: in response to interactive operations on the three-dimensional color printing model, the printing target color is divided into multiple printing target color subsets according to a preset equidistant brightness value distribution, the printing target color subset corresponds to one of the hue values, and the printing target color subset contains multiple printing target colors with different hue values and/or chroma values; each printing target color subset constitutes a printing target file.

After the user retrieves the three-dimensional color printing model, the user can pre-set a print target color subset of the target color to be printed. In this embodiment, the print target colors can be divided according to the brightness value.

As can be seen from the above description of the brightness value, brightness describes the degree of lightness of a color, and the range of brightness values is 0%~100%, and 10% is used as an arithmetic difference value to divide the brightness value into 10 print target color subsets. Therefore, the preset arithmetic difference brightness value distribution can be 10%, and the brightness value is divided into 10 print target color subsets.

The 10 printing target color subsets all correspond to the hue value of the same color (such as blue), and the printing colors in the printing target color subsets may contain different hue values and/or lightness values. Similarly, according to the same division method as above, 24 printing target color subsets are obtained, and all 24 printing target color subsets constitute a printing target file.

In some embodiments, the method further includes step S270: in response to a user's color sample selection operation for the three-dimensional color printing model, determining that one or more of the visualized color samples are highlighted in the three-dimensional color printing model.

In this embodiment, after the user selects the color sample selection operation of the 3D color printing model, the color sample of the selected 3D color printing model can be highlighted. The highlighting can include: the user highlights, enlarges or reduces the display by selecting a specific color.

In some embodiments, the method also includes step S280: in response to a user's color sample dragging operation on a three-dimensional color printing model, determining a moving distance and a moving direction corresponding to the color sample dragging operation, determining a dragged distance of the visualized color sample based on the moving distance and the moving direction, and controlling the visualized color sample to move the dragged distance in the moving direction.

In this embodiment, by receiving the input signal of the user operating the mouse to drag, the color sample of the three-dimensional color printing model is dragged according to the input signal of the mouse drag, and the color sample of the three-dimensional color printing model is controlled to move in the moving direction by the dragged distance according to the distance and moving direction information instructions generated by dragging the mouse.

In some embodiments, the method further includes step S290: in response to a rotation operation of the user on the three-dimensional color printing model, rotating the three-dimensional color printing model according to the rotation operation.

In this step, by receiving an input signal of the user operating the mouse to drag and rotate, the three-dimensional color printing model is rotated according to the input signal of the user operating the mouse to drag and rotate.

In some embodiments, the method also includes step S2100: in response to a user's perspective operation on the three-dimensional color printing model, adjusting the simulated field of view depth of the three-dimensional color printing model according to the perspective operation, so as to display a visual color sample located inside the three-dimensional color printing model on the user interface based on the simulated field of view depth.

In this step, the perspective operation can be an operation method for showing a three-dimensional space effect on a two-dimensional plane. Based on the principle of the perspective operation, the simulated field of view depth of the three-dimensional color printing model is adjusted according to the perspective operation, and the visualized color sample inside the three-dimensional color printing model is displayed on the user interface according to the simulated field of view depth.

Therefore, the above steps S270, S280, S290 and S2100 provide a variety of color sample interaction methods for users to realize three-dimensional color printing models, making the user operation mode more diverse.

In summary, this application provides an intuitive color relationship display effect and achieves color consistency between print input and output by constructing a three-dimensional color model and combining visual color samples and color models. By cleverly separating print colors and display colors and converting them using device color profiles, a more accurate preview effect on the display device is achieved, and the color performance on different printing devices and printing substrates can be accurately simulated, reducing printing errors caused by color deviation and improving printing efficiency.

Please refer to FIG. 8 , the present application provides a three-dimensional color printing model establishment device, including: an establishment module 810 , a first acquisition module 820 , a second acquisition module 830 , and a generation module 840 .

Establishing module 810, for establishing a three-dimensional color model; wherein the three-dimensional color model uses the hue ring as a reference plane, establishes a lightness axis perpendicular to the reference plane, uses lightness values to represent the position along the lightness axis, and uses chroma values to represent the radial spatial distance value from the center of the hue ring to any point outward.

The first acquisition module 820 is used to acquire first color data and map the first color data to a corresponding position in the three-dimensional color model.

The second acquisition module 830 is used to acquire second color data, where the second color data is converted from the first color data through a device color profile of a target printing device and a display color profile of a current display device.

The generation module 840 is used to generate a visual color sample based on the first color data and the mapping position of the first color data in the three-dimensional color model; characterize the display color of the visual color sample by the second color data; and construct a color printing model by arranging several of the visual color samples.

The implementation process of the functions and effects of each module in the above-mentioned device is specifically described in the implementation process of the corresponding steps above, and will not be repeated here.

Please refer to Figure 9, which is a schematic diagram of the structure of an electronic device 1 provided in an embodiment of the present application. As shown in Figure 9, the electronic device 1 includes: at least one processor 11 and a memory 12, and Figure 9 takes one processor 11 as an example. The processor 11 and the memory 12 are connected through a bus 10 and communicate with each other. The memory 12 stores instructions that can be executed by the processor 11, and the instructions are executed by the processor 11 so that the electronic device 1 can execute all or part of the process of the three-dimensional color model establishment method in the above-mentioned embodiment, or execute all or part of the process of the three-dimensional color printing model interactive operation method in the above-mentioned embodiment.

The bus 10 may include an accelerated graphics port (AGP) or other graphics bus, an enhanced industry standard architecture (EISA) bus, a front side bus (FSB), a HyperTransport (HT) interconnect, an industry standard architecture (ISA) bus, an InfiniBand interconnect, a low pin count (LPC) bus, a memory bus, a microchannel architecture (MCA) bus, a peripheral component interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a serial advanced technology attachment (SATA) bus, a video electronics standard association local (VLB) bus, or other suitable busses or a combination of two or more of the above. Where appropriate, the bus 10 may include one or more buses.

The processor 11 reads and executes computer program instructions stored in the memory 12 to implement all or part of the process of the three-dimensional color printing model establishment method in the above-mentioned embodiment, or executes all or part of the process of the above-mentioned three-dimensional color printing model interactive operation method.

The memory 12 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable red-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

Exemplarily, the electronic device 1 in executing the three-dimensional color printing model establishment method or the three-dimensional color printing model interactive operation method can be a server.

The present application also provides a computer-readable storage medium, which stores a computer program. The computer program can be executed by a processor to complete the three-dimensional color printing model establishment method provided in the present application, or executed to complete the three-dimensional color printing model interactive operation method.

The present application also provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements the three-dimensional color printing model establishment method provided in the present application, or is executed to complete the three-dimensional color printing model interactive operation method.

In several embodiments provided in the present application, the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and a part of a module, a program segment or a code contains one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and/or the flowchart, and the combination of boxes in the block diagram and/or the flowchart can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

In addition, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

If the function is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of each embodiment of the present application.

Claims (19)

1. A method for establishing a three-dimensional color printing model, characterized in that the method comprises: Establishing a three-dimensional color model; wherein the three-dimensional color model uses a hue ring as a reference plane, establishes a lightness axis perpendicular to the reference plane, uses lightness values to represent positions along the lightness axis, and uses chroma values to represent radial spatial distance values from the center of the hue ring to any point outward; Acquire first color data, and map the first color data to a corresponding position in the three-dimensional color model; Acquire second color data, wherein the second color data is converted from the first color data through a device color profile of a target printing device and a display color profile of a current display device; Based on the first color data and the mapping position of the first color data in the three-dimensional color model, a visual color sample is generated; the display color of the visual color sample is represented by the second color data; and a color printing model is constructed by arranging several of the visual color samples. 2. The method for establishing a three-dimensional color printing model according to claim 1, characterized in that after establishing the three-dimensional color model, the method comprises the following steps: Obtaining a first threshold range of the hue circle to define a hue range; Obtaining a second threshold range of the brightness value to define a height range; Obtaining a third threshold range of the chroma value to define a radial distance range; The three-dimensional color model is rendered as a regular sphere according to the first threshold range, the second threshold range, and the third threshold unit. 3. The method for establishing a three-dimensional color printing model according to claim 1, wherein the step of obtaining the first color data comprises the following steps: Acquire discrete color data, wherein the discrete color data is obtained by discretizing a preset basic color model based on a preset data screening strategy; A conversion relationship between the basic color model and the three-dimensional color model is obtained, and the discrete color data is converted into corresponding first color data in the three-dimensional color model, wherein the three-dimensional color model is different from the basic color model. 4. The method for establishing a three-dimensional color printing model according to claim 3, wherein the discrete color data is obtained by discretizing a preset basic color model based on a preset data screening strategy, comprising the following steps: The discrete color data is obtained by discretizing the colors in the basic color model according to the equidistance principle based on the preset selected color difference values to generate a series of discrete color data with uniform color difference. 5. The method for establishing a three-dimensional color printing model according to claim 4, wherein the discretization of the colors in the basic color model according to the equidistance principle comprises the following steps: The basic color model includes three dimensions: lightness value, redness-greenness value, and yellowness-blueness value. The colors in the basic color model are discretized according to the equidistance principle of the three dimensions: lightness value, redness-greenness value, and yellowness-blueness value. 6. The method for establishing a three-dimensional color printing model according to claim 4, characterized in that the discrete color data is based on using a preset selected color difference value, discretizing the colors in the basic color model according to the equidistance principle to generate a series of discrete color data with uniform color difference, and obtaining the discrete color data comprises the following steps: Based on using the preset selected color difference value as the side length of the regular polyhedron, a regular polyhedron array is constructed by a spatial tessellation method to divide the preset basic color model; Determining reference color point data of the basic color model; The reference color point data coincides with a vertex or a center point of a regular polyhedron in the regular polyhedron array, and the equidistant color difference discrete point data of each vertex of the regular polyhedron in the basic color model are obtained to obtain the discrete color data. 7. The method for establishing a three-dimensional color printing model according to claim 5, characterized in that the lightness value, the red-green value, and the yellow-blue value based on the basic color model further include the following steps: Obtaining a fourth threshold range of the brightness value to define a brightness range; Obtaining a fifth threshold range of the redness and greenness values to define a redness and greenness range; A sixth threshold range of the yellow-blue value is obtained to define a yellow-blue range. 8. The method for establishing a three-dimensional color printing model according to claim 1, characterized in that the second color data is obtained by converting the first color data through a device color profile of a target printing device and a display color profile of a current display device, and further comprises the following steps: Based on all or part of the first color data, a printing instruction is generated and sent to a designated target printing device; Obtaining printed measured color data, which is obtained by converting the printed output measurement through a device profile of a target printing device based on the first color data; The printed measured color data is converted through a display color configuration file of a current display device to obtain the second color data corresponding to all or part of the first color data. 9. The method for establishing a three-dimensional color printing model according to claim 8, wherein the second color data is converted from the first color data through a device color profile of a target printing device and a display color profile of a current display device, and further comprises the following steps: Acquire part of the known second color data and the corresponding first color data, use a color optimization algorithm to adjust a device color profile of a target printing device, and update the device color profile; For any given first color data, the corresponding second color data is obtained by converting it through the device color configuration file and the display color configuration file. 10. The method for establishing a three-dimensional color printing model according to claim 1, characterized in that the second color data is obtained by converting the first color data through a device color profile of a target printing device and a display color profile of a current display device, and further comprises the following steps: Acquire all or part of the second color data, and input the second color data into the current display for display; Acquire display measured color data corresponding to the second color data, wherein the display measured color data is color data actually displayed by the display; According to the second color data and the displayed measured color data, using a color optimization algorithm to adjust a display color profile of the current display, and update the display color profile; For any given first color data, the corresponding second color data is obtained by converting it through the device color configuration file and the display color configuration file. 11. A three-dimensional color printing model interactive operation method, characterized in that: Determine a three-dimensional color printing model established by the method according to any one of claims 1 to 10; the three-dimensional color printing model generates a visual color sample based on first color data and a mapping position of the first color data in the three-dimensional color model; represents the display color of the visual color sample by second color data; and is constructed by arranging the visual color samples; wherein the second color data is related to a target printing device and a current display device, and is converted from the first color data through a device color profile of the target printing device and a display color profile of the current display device; In response to an interactive operation on the three-dimensional color printing model, determining the visualized color sample as a printing target color; Based on the first color data corresponding to the printing target color, a printing instruction is generated and sent to a designated target printing device. 12. The interactive operation method of a three-dimensional color printing model according to claim 11, characterized in that it comprises the following steps: In response to the interactive operation on the three-dimensional color printing model, the printing target color is divided into a plurality of printing target color subsets according to a preset equidistant hue value distribution, wherein the printing target color subset corresponds to one hue value, and the printing target color subset includes a plurality of printing target colors having different chroma values and/or lightness values; each printing target color subset constitutes a printing target file; Or, in response to an interactive operation on the three-dimensional color printing model, the printing target color is divided into a plurality of printing target color subsets according to a preset equidistant chromaticity value distribution, the printing target color subset corresponds to one of the hue values, and the printing target color subset contains a plurality of printing target colors with different hue values and/or lightness values; each printing target color subset constitutes a printing target file; Or, in response to an interactive operation on the three-dimensional color printing model, the printing target color is divided into a plurality of printing target color subsets according to a preset equidistant lightness value distribution, the printing target color subset corresponds to one of the hue values, and the printing target color subset contains a plurality of printing target colors with different hue values and/or chroma values; each printing target color subset constitutes a printing target file; Based on the first color data contained in the printing target file, a printing instruction is generated and sent to a designated target printing device. 13. The interactive operation method of a three-dimensional color printing model according to claim 11, characterized in that it also includes the following steps: In response to a color sample selection operation by a user for the three-dimensional color printing model, one or more of the visualized color samples are determined to be highlighted in the three-dimensional color printing model. 14. The interactive operation method of a three-dimensional color printing model according to claim 11, further comprising the following steps: In response to a user's color sample dragging operation on the three-dimensional color printing model, a moving distance and a moving direction corresponding to the color sample dragging operation are determined, a dragged distance of the visualized color sample is determined based on the moving distance and the moving direction, and the visualized color sample is controlled to move the dragged distance in the moving direction. 15. The three-dimensional color printing model interactive operation method according to claim 11, characterized in that it also includes the following steps: In response to a rotation operation of the user on the three-dimensional color printing model, the three-dimensional color printing model is rotated according to the rotation operation. 16. The three-dimensional color printing model interactive operation method according to claim 11, characterized in that it also includes the following steps: In response to a user's perspective operation on the three-dimensional color printing model, a simulated depth of field of view of the three-dimensional color printing model is adjusted according to the perspective operation to display a visualized color sample located inside the three-dimensional color printing model on a user interface based on the simulated depth of field of view. 17. An electronic device, characterized in that the electronic device comprises: processor; a memory for storing processor-executable instructions; The processor is configured to execute the three-dimensional color printing model establishment method described in any one of claims 1 to 10, or to execute the three-dimensional color printing model interactive operation method described in any one of claims 11 to 16. 18. A computer program product, characterized in that the computer program product comprises a computer program, and when the computer program is executed by a processor, it implements the three-dimensional color printing model establishment method described in any one of claims 1 to 10, or executes the three-dimensional color printing model interactive operation method described in any one of claims 11 to 16. 19. A computer-readable storage medium, characterized in that the storage medium stores a computer program, and when the computer program is executed by a processor, it is used to execute the three-dimensional color printing model establishment method described in any one of claims 1 to 10, or to execute the three-dimensional color printing model interactive operation method described in any one of claims 11 to 16.