CN115412641A - Color printing method, device and color printing device based on color matching - Google Patents

Abstract

The present application relates to the technical field of industrial printing, and provides a color matching-based color printing method, device and color printing equipment. The color printing method includes acquiring a preset color value; converting the preset color value into a color value of ink to be printed; generating a color patch target map according to the color value of the ink to be printed; In the figure, find out the target color block that is consistent with the color of the preset color value; obtain the color value of the target color block; The value is replaced with the color value of the destination patch and the output prints. The present application also provides a color printing device and equipment corresponding to the above color printing method. This application can automatically pick colors and optimize visual effects, effectively solve the problem of color reproduction, and save manpower and time costs.

Description

Color printing method, device and color printing device based on color matching

technical field

The present application relates to the technical field of inkjet printing, and in particular to a color matching-based color printing method, device and color printing equipment.

Background technique

In terms of color management of existing color inkjet printers, in order to reproduce the color of the image on the printing medium, the current industry mainly achieves the goal by manually adjusting the curve. Manual adjustment is a very complicated project that requires constant Only by adjusting and verifying carefully can the effect be achieved, which is time-consuming and labor-intensive. Specifically, professionals control the printing ink volume of each channel of the printer through the adjustment of the color curve of each color or through the color matching software, so as to control the printing color effect of the pattern. According to the different color effects required by users, it is difficult for non-professional users to deal with it by adjusting the change of the color curve or adjusting the color of the original image (sample image) through color matching software. The debugging process of printing out the specified color image requires a lot of manpower. For example, relying on manual adjustment of the image through image processing software such as Photoshop software, the image needs to be adjusted and printed out, and compared with the original image. There are differences in the correct results, and then adjusted by Photoshop software, repeated back and forth, in order to achieve the goal. For complex images, non-professionals need to spend a lot of time to process, and it is still difficult to reproduce the color of the original image.

Contents of the invention

In view of this, the embodiments of the present application provide a color matching-based color printing method, device, and color printing equipment to solve the technical problems in the prior art that color reproduction is difficult and color matching is time-consuming and labor-intensive.

The technical scheme that this application adopts is:

In the first aspect, the present application provides a color printing method based on color matching, including:

Get the preset color value;

converting the preset color value into the color value of the ink to be printed;

Generate a color patch target map according to the color value of the ink to be printed;

Finding a target color block that is consistent with the color of the preset color value from the color block target map;

Obtain the color value of the target color block;

When a printing instruction for a preset color value is received, the color value of the ink to be printed is replaced with the color value of the target color block and printed.

As a preferred embodiment of the present application, said obtaining the preset color value includes:

Obtain the preset color value by measuring the sample image with the measuring device, or input the preset color value as required, or obtain the preset color value from the displayed image, and the preset color value includes: Lab color value, RGB color value or CMYK color value.

As a preferred embodiment of the present application, the conversion of the preset color value into the color value of the ink to be printed includes:

Converting the Lab color value into the color value of the ink to be printed includes: obtaining the color value of the ink to be printed through a conversion relationship between a printing device characteristic file or a Lab color value and a CMYK value, wherein the ink to be printed The color values of include: the color values in the CMYK color mode and/or the color values in the RGB color mode.

As a preferred embodiment of the present application, the color block target map includes at least one color block, and the color block target map is in the shape of a rectangle, a hexagon, an octagon or a honeycomb.

As a preferred embodiment of the present application, the method further includes after acquiring the color value of the target color block:

Establishing a corresponding relationship between the color value of the ink to be printed and the color value of the target color block;

The corresponding relationship is stored.

As a preferred embodiment of the present application, when the printing instruction for the preset color value is received, the output printing of replacing the color value of the ink to be printed with the color value of the target color block includes:

receiving a print command for a preset color value;

In the RIP software, replace the color value of the ink to be printed with the color value of the target color block;

Outputs a print based on the color value of the target patch.

As a preferred embodiment of the present application, when the printing instruction for the preset color value is received, the output printing of replacing the color value of the ink to be printed with the color value of the target color block includes:

receiving a print command for a preset color value;

In the image processing software before the RIP software processing, the color value of the ink to be printed is replaced with the color value of the target color block;

Input the color value of the target color block into the RIP software for processing to obtain the print data;

Print the print data output.

As a preferred embodiment of the present application, the generating the color patch target map according to the color value of the ink to be printed includes:

Automatically generate a color block target map according to the color value of the ink to be printed and the floating range of each ink channel.

As a preferred embodiment of the present application, the automatic generation of the color patch target map according to the color value of the ink to be printed and the floating range of each ink channel includes:

The permutation and combination rule is adopted or the color value of the ink to be printed is decreased or increased according to the floating range of each ink channel.

In the second aspect, the embodiment of the present application provides a color printing device based on color matching, the device includes:

The first obtaining module is used to obtain a preset color value;

A conversion module, configured to convert the preset color value into the color value of the ink to be printed;

A color patch target image generating module, configured to generate a color patch target image according to the color value of the ink to be printed;

A search module, configured to find, from the color block target map, a target color block that is consistent with the color of the preset color value;

The second acquisition module acquires the color value of the target color block;

The replacement module is configured to replace the color value of the ink to be printed with the color value of the target color block and print when receiving a printing instruction for a preset color value.

In a third aspect, the present application also provides a color printing device, where the color printing device includes:

At least one processor, at least one memory, and computer program instructions stored in the memory, when the computer program instructions are executed by the processor, the method described in any one of the preceding items is implemented.

In a fourth aspect, the present application further provides a storage medium on which computer program instructions are stored, and when the computer program instructions are executed by a processor, the method described in any one of the preceding items is implemented.

To sum up, the color printing method, device, and color printing device based on color matching in the embodiments of the present application convert the preset color value into the color value of the ink to be printed, and then generate the color value according to the color value of the ink to be printed. Block target map, find the target color block that is consistent with the color of the preset color value from the color block target map, when the user wants to print the preset color value, only need to use the image to be printed The color value of the printing ink is replaced, and the color expected by the user can be printed. This application can automatically pick colors and optimize visual effects, which can save manpower and time costs, and effectively solve the problems of insufficient restoration degree and insufficient restoration accuracy in color reproduction.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings that need to be used in the embodiments of the present application. Other drawings can be obtained according to these drawings, and these are all within the protection scope of the present application.

FIG. 1 is a schematic flowchart of a color printing method based on color matching according to Embodiment 1 of the present application.

Fig. 2a is a schematic diagram of a honeycomb-shaped cross-section of a color patch target image in Embodiment 1 of the present application.

Fig. 2b is a schematic diagram showing a honeycomb-shaped cross-section of another color patch target image in Embodiment 1 of the present application.

Fig. 3a is a schematic flowchart of an embodiment of step S6 in Fig. 1 .

Fig. 3b is a schematic flowchart of another embodiment of step S6 in Fig. 1 .

FIG. 4 is a schematic structural diagram of a color printing device based on color matching according to Embodiment 2 of the present application.

FIG. 5 is a schematic structural diagram of a three-color printing device according to an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. In the description of this application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, rather than indicating or implying References to devices or elements must have a particular orientation, be constructed, and operate in a particular orientation and therefore should not be construed as limiting the application. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the statement "comprising..." does not exclude the presence of additional same elements in the process, method, article or device comprising said element. If there is no conflict, the embodiments of the present application and various features in the embodiments can be combined with each other, and all are within the protection scope of the present application.

The main inventive idea of the present application is to reproduce the color when a new image is printed for the interested color value from the printed image.

Example 1

As shown in Figure 1, the embodiment of the present application discloses a color printing method based on color matching, which is mainly realized on a color printing device. A communication-connected printer, wherein the host computer is a computer with an operating system, and image processing software, such as Photoshop software, CorelDRAW software, and other front-end image processing software, can be installed in the host computer. Of course, there is usually RIP software in the host computer ( Raster Image Processor), which is an image editing, typesetting, and output software so that the printer can print. Of course, as the data processing capability of the printer itself becomes more and more powerful, the above-mentioned software can also be directly installed in the control system of the printer, and the present invention does not limit the installation of these software. The color printing method based on color matching in this application is mainly aimed at the color that the user is interested in seeing, and according to the color value of the interested color, the color is restored and fused to replace a certain color in the image to be printed. Specifically, the method mainly includes:

S1: Obtain a preset color value;

S2: converting the preset color value into the color value of the ink to be printed;

S3: Generate a color patch target map according to the color value of the ink to be printed;

S4: Find a target color block that is consistent with the color of the preset color value from the color block target map;

S5: Acquiring the color value of the target color block;

S6: When a printing instruction for a preset color value is received, replace the color value of the ink to be printed with the color value of the target color block and output printing.

This application converts the preset color value into the color value of the ink to be printed, and then generates a color block target map to find the target color block that matches the preset color value in the color block target map, and then use it when the user needs When printing an image with the preset color value, it is only necessary to replace the color value of the ink to be printed for printing the image, and the color expected by the user can be printed. In this way, the user can not only modify some or all colors in the original image , and the whole operation is very simple. This application can automatically pick colors and optimize visual effects, which can save manpower and time costs, and effectively solve the problems of insufficient restoration degree and insufficient restoration accuracy in color reproduction.

As a preferred embodiment of the present application, in the above step S1, said obtaining the preset color value includes:

Measure the color value of the sample image by the measuring device, or input the color value as required, or obtain the color value from the displayed image, and the color value includes: Lab color value, RGB color value or CMYK color value. It can be seen from the above that the source of the color value of the image in this application is various, and the color mode (or color mode) is also various. Diversified sources of color values increase the user's choice in industrial printing.

As a preferred embodiment of the present application, the conversion of the preset color value into the color value of the ink to be printed includes:

Converting the Lab color value into the color value of the ink to be printed includes: obtaining the color value of the ink to be printed through a conversion relationship between a printing device characteristic file or a Lab color value and a CMYK value, wherein the ink to be printed The color values of include: the color values in the CMYK color mode and/or the color values in the RGB color mode. The above-mentioned printing device characteristic file includes: one of ICC file (a color management file formulated by International Color Consortium), DAT file (data file) or DLP file (file extension). Here, there are mainly two methods to obtain the conversion relationship between the Lab color value and the CMYK value:

One is obtained through reverse calculation of the Lab value of CMYK, where the Lab value of CMYK is obtained by fitting and interpolating the actual measured Lab value of part of the CMYK color.

The other is to input the ICC file through some open source libraries of ICC, such as Lcms, etc., and convert the Lab value to CMYK value through the conversion library.

Specifically, for the obtained sample image, the measurement of the color value of the sample by the measurement device is mainly achieved by the following methods: control the measurement device to pick up the color to be restored, and obtain its color value (such as Lab value, RGB value), Through color conversion, the color value obtained after color picking is converted to the color value of the ink to be printed by the printer. For example, the common color value of the ink is the CMYK value. Of course, it is not limited to the CMYK value, and other specified colors can also be added, such as in CMYK. Add R (red), O (orange) and/or G (green) to the base, which all belong to the CMYK color mode. Users can add spot colors according to actual printing images or printing requirements. In one embodiment, the specific steps are as follows:

(1) Use a measuring device (such as I1 Pro2) to obtain the color value on the sample image.

(2) Use the color conversion tool to convert the obtained color value into the color value data of the ink to be printed by the printer.

(3) Make a color block target map; based on the color value of step (2), set a certain floating value V on the basis of the color value of each channel to obtain a series of color values, and make all the color values Form a color block to form a color block target map;

(4) Control the printer to print the color block target map. After the color block target map is dried, select the color block closest to the color in the original image, and record the Cj\Mj\Yj\Kj values of the color block.

(5) When printing, replace the pixel color value to be processed in the original image with the Cj\Mj\Yj\Kj value obtained in step (4).

As a preferred embodiment of the present application, the cross-section of the color patch target map is in the shape of a rectangle, a hexagon, an octagon or a honeycomb. Here, the honeycomb or hexagonal shape can be used to clearly know the gradient color in each direction, and the rectangular shape can cover the color change of each color channel in multiple dimensions. Therefore, the shape of the color target diagram can be selected according to the needs.

As a preferred embodiment of the present application, the method further includes after acquiring the color value of the target color block:

Establish the corresponding relationship between the color value of the ink to be printed and the color value of the target color block; according to the color value of the selected target color block, establish a one-to-one correspondence with the color value of the ink to be printed, such as the color value of the target color block Color value C=50, M=50, Y=50, K=50, where the number 50 represents the ink density, and its one-to-one correspondence with the color value of the ink to be printed may be C=51, M=52, Y=53 , K=54, that is to say, there is a difference between the color value of the ink to be printed and the ink concentration of the target color value, which is better and more accurate than the color reproduction of the prior art, and the obtained picture is closer to the user's expectation.

The corresponding relationship is stored.

As shown in Figure 3a, as a preferred embodiment of the present application, when the printing instruction for the preset color value is received, the color value of the ink to be printed is replaced by the color value of the target color block and the output printing includes:

S61: Receive a printing instruction for a preset color value;

S62: In the RIP software, replace the color value of the ink to be printed with the color value of the target color block;

S63: Outputting and printing according to the color value of the target color patch.

As shown in Figure 3b, as a preferred embodiment of the present application, when a printing instruction for a preset color value is received, the output printing of replacing the color value of the ink to be printed with the color value of the target color patch includes:

S610: Receive a print command for a preset color value; the print command is generated after inputting relevant information according to the user's color value requirement;

S620: In the image processing software before the RIP software processing, replace the color value of the ink to be printed with the color value of the target color block; here, the image processing software before the RIP software processing mainly refers to those installed in the host computer such as Photoshop software, CorelDRAW software and other front-end image processing software.

S630: Input the color value of the target color block into the RIP software for processing to obtain print data; after receiving the color value of the target color block, the RIP software performs conventional data processing to convert the image data into print data;

S640: Outputting the print data for printing. At this time, the RIP software outputs the processed printing data to the printing control software, and the printing control software sends the printing data according to the control command to drive the nozzle to print ink.

Outputs a print based on the color value of the target patch. Based on the color value of the target color block, the print control software controls the nozzle to eject the ink to be printed for image printing.

As a preferred embodiment of the present application, the generating the color patch target map according to the color value of the ink to be printed includes:

Automatically generate a color block target map according to the color value of the ink to be printed and the floating range of each ink channel.

Generate a series of similar color values according to the color values of the ink to be printed, such as CMYK values, and the set floating range of each ink channel. The floating range here can be set according to the needs. For generating a series of similar color values, the same image is printed in different printing environments, such as printers of different brands or performance quality, inks of different physical and chemical properties, and different types of printing media. , the printed colors are different, but after being processed by the color management software, the colors of the same image will be relatively close. Therefore, we only need to obtain a series of color patches near the color value of the seen color, print out these color patches and compare them with the color patches of the sample image to find the color value closest to the sample image, and convert the image to Replace the color value in the color block with the color value in the color block to achieve the same color as the sample image.

The embodiment of the present application can automatically acquire the color value on the sample image and automatically convert it into color channel data that can be recognized by the printer, and the data is similar to the color value of the sample image. Through the color value, multiple images with similar color values are automatically generated. color values, and print each color value in the form of a color block target map, and get the replaced color value after quick comparison, and replace the color in the original image to get the effect of the color specified in the sample image.

As a preferred embodiment of the present application, the automatic generation of the color patch target map according to the color value of the ink to be printed and the floating range of each ink channel includes:

Use permutation and combination rules or the color value of the ink to be printed decreases or increases according to the floating range of each ink channel, specifically as follows:

1. According to the arrangement and combination, such as C=50, M=50, Y=50, K=50 as an example, the floating range of each ink channel is set, such as the floating range of C is from 0 to 5, such as the floating range of M From -2 to 0, if the floating range of Y is from 0 to 3, if the floating range of K is from -5 to 0, and the floating interval is 1, then C can take values of 50, 51, 52, 53, 54, 55; M Can take values 50, 49, 48; Y can take values 50, 51, 52, 53; K can take values 50, 49, 48, 47, 46, 45. Then combine the color blocks corresponding to the above values in a certain order to the color block target map. Here, C, M, Y, and K are not uniformly incremented or uniformly decremented, but are incremented for one of the ink channels and decremented for one of the channels according to the preset color value. Preferably, the color patch target map is shown in Fig. 2a and Fig. 2b, and the color patch target map is selected based on a preset floating range.

2. According to the set color change direction, such as C=50, M=50, Y=50, K=50 as an example, each side of the hexagon represents a color change direction, as shown in Figure 2a, select the clockwise change direction , respectively C+, M+, Y+, C-, M-, Y-; the floating intervals are 2, 3, 4, 3, 5, 4; the floating times are 4, then the values in the C+ direction are 52, 54, 56 , 58; the values in the M+ direction are 53, 56, 59, 62, where the floating range of C+ and M+ is based on the relative coordinates from the center to calculate the change value of C+ and M+. By analogy, the color values of all color blocks in each color channel can be obtained.

Example 2

Please refer to Fig. 4, the embodiment of the present application is based on the color printing method based on color matching in the above-mentioned embodiment 1, and also proposes a color printing device based on color matching, the device includes:

The first obtaining module 10 is used to obtain a preset color value;

A conversion module 20, configured to convert the preset color value into the color value of the ink to be printed;

A color patch target map generating module 30, configured to generate a color patch target map according to the color value of the ink to be printed;

A search module 40, configured to find a target color block that is consistent with the color of the preset color value from the color block target map;

The second obtaining module 50, obtains the color value of the target color block;

The replacement module 60 is configured to replace the color value of the ink to be printed with the color value of the target color block and output printing when receiving a printing instruction for a preset color value.

As a preferred embodiment of the present application, the first acquisition module 10 further includes:

The color value acquisition unit is used to measure the color value of the sample image by the measuring device, or input the color value as required, or obtain the color value from the displayed image, and the color value includes: Lab color value, RGB color value or CMYK color value.

As a preferred embodiment of the present application, the conversion module 20 includes: used to obtain the conversion relationship between the printing device characteristic file or the Lab color value and the CMYK value, wherein the color value of the ink to be printed includes: A color value and/or a color value in RGB color mode.

As a preferred embodiment of the present application, the cross-section of the color patch target map is in the shape of a rectangle, a hexagon, an octagon or a honeycomb.

As a preferred embodiment of the present application, the device also includes:

A correspondence relationship establishment module, configured to establish a correspondence relationship between the color value of the ink to be printed and the color value of the target color block;

A storage module, configured to store the correspondence.

As a preferred embodiment of the present application, the replacement module 60 includes:

a first receiving unit, configured to receive a printing instruction for a preset color value;

The RIP software replacement unit is used to replace the color value of the ink to be printed with the color value of the target color block in the RIP software;

The first output printing unit is configured to output and print according to the color value of the target color block.

As a preferred embodiment of the present application, the replacement module 60 includes:

a second receiving unit, configured to receive a printing instruction for a preset color value;

The pre-replacement unit is used to replace the color value of the ink to be printed with the color value of the target color block in the image processing software before the RIP software processing;

The second output printing unit is used for outputting and printing according to the color value of the target color block.

As a preferred embodiment of the present application, the color patch target map generation module 30 includes: an automatic color patch target map generation unit, which is used to automatically generate a color patch target map according to the color value of the ink to be printed and the floating range of each ink channel.

As a preferred embodiment of the present application, the automatic generation of the color block target map unit includes:

A unit for adopting permutation and combination rules or the color value of the ink to be printed to decrease or increase according to the floating range of each ink channel.

This application converts the preset color value into the color value of the ink to be printed, and then generates a color block target map, finds the target color block that matches the color block target map, and then prints with the preset color value When printing an image, it is only necessary to replace the color value of the ink to be printed for printing the image, and the color expected by the user can be printed. In this way, the user can not only modify part or all of the colors in the original image, but also the whole operation is very easy. easy. This application can automatically pick colors and optimize visual effects, which can save manpower and time costs, and effectively solve the problems of insufficient restoration degree and insufficient restoration accuracy when color reproduction is performed.

Example 3

In addition, the color printing device of the embodiment of the present application is described with reference to FIG. 5 . FIG. 5 shows a schematic diagram of a hardware structure of a color printing device provided by an embodiment of the present application. The color printing equipment includes:

at least one processor 401;

at least one memory 402; and

The computer program instructions stored in the memory, when the computer program instructions are executed by the processor, implement the color matching-based color printing method described in Embodiment 1 above.

Specifically, the above-mentioned processor 401 may include a central processing unit (CPU), or an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

Memory 402 may include mass storage for data or instructions. By way of example and not limitation, memory 402 may include a hard disk drive (Hard Disk Drive, HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a Universal Serial Bus (Universal Serial Bus, USB) drive or two or more Combinations of multiple of the above. Storage 402 may include removable or non-removable (or fixed) media, where appropriate. Memory 402 may be internal or external to the data processing arrangement, where appropriate. In a particular embodiment, memory 402 is a non-volatile solid-state memory. In particular embodiments, memory 402 includes read-only memory (ROM). Where appropriate, the ROM may be mask programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory or A combination of two or more of the above.

The processor 401 reads and executes the computer program instructions stored in the memory 402 to implement any color matching-based color printing method in the above embodiments.

In an example, the above-mentioned color printing device may further include a communication interface 403 and a bus 410 . Wherein, as shown in FIG. 5 , the processor 401 , the memory 402 , and the communication interface 403 are connected through a bus 410 to complete mutual communication.

The communication interface 403 is mainly used to implement communication between modules, devices, units and/or devices in the embodiments of the present application.

The bus 410 includes hardware, software, or both, coupled to each other. By way of example and not limitation, the bus may include Accelerated Graphics Port (AGP) or other graphics bus, Enhanced Industry Standard Architecture (EISA) bus, Front Side Bus (FSB), HyperTransport (HT) interconnect, Industry Standard Architecture (ISA) Bus, Infiniband Interconnect, Low Pin Count (LPC) Bus, Memory Bus, Micro Channel Architecture (MCA) Bus, Peripheral Component Interconnect (PCI) Bus, PCI-Express (PCI-X) Bus, Serial Advanced Technology Attachment (SATA) bus, Video Electronics Standards Association Local (VLB) bus or other suitable bus or a combination of two or more of these. Bus 410 may comprise one or more buses, where appropriate. Although the embodiments of this application describe and illustrate a particular bus, this application contemplates any suitable bus or interconnect.

Example 4

In addition, in combination with the color matching-based color printing method in the foregoing embodiments, the embodiments of the present application may provide a computer-readable storage medium for implementation. The computer-readable storage medium stores computer program instructions; when the computer program instructions are executed by a processor, any one of the color matching-based color printing methods in the above-mentioned embodiments is implemented.

The foregoing is a detailed introduction to the color matching-based color printing method, device, device, and storage medium provided in the embodiments of the present application. This application automatically picks up colors and optimizes visual effects, which can save manpower and time costs, and effectively solve the problems of insufficient restoration degree and insufficient restoration accuracy when color reproduction is performed.

It is to be understood that the application is not limited to the specific configurations and processes described above and shown in the figures. For conciseness, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order of the steps after understanding the spirit of the present application.

The functional blocks shown in the structural block diagrams described above may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an application specific integrated circuit (ASIC), suitable firmware, a plug-in, a function card, or the like. When implemented in software, the elements of the present application are the programs or code segments employed to perform the required tasks. Programs or code segments can be stored in machine-readable media, or transmitted over transmission media or communication links by data signals carried in carrier waves. "Machine-readable medium" may include any medium that can store or transmit information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, and the like. Code segments may be downloaded via a computer network such as the Internet, an Intranet, or the like.

It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above steps, that is, the steps may be performed in the order mentioned in the embodiment, or may be different from the order in the embodiment, or several steps may be performed simultaneously.

The above is only a specific implementation of the present application, and those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working process of the above-described systems, modules and units can refer to the foregoing method embodiments The corresponding process in , will not be repeated here. It should be understood that the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in the application, and these modifications or replacements should cover all Within the protection scope of this application.

Claims (12)

1. A color printing method based on color matching, comprising: Get the preset color value; converting the preset color value into the color value of the ink to be printed; Generate a color patch target map according to the color value of the ink to be printed; Finding a target color block that is consistent with the color of the preset color value from the color block target map; Obtain the color value of the target color block; When a printing instruction for a preset color value is received, the color value of the ink to be printed is replaced with the color value of the target color block and printed. 2. The color printing method based on color matching according to claim 1, wherein said acquiring a preset color value comprises: Obtain the preset color value by measuring the sample image with the measuring device, or input the preset color value as required, or obtain the preset color value from the displayed image, and the preset color value includes: Lab color value, RGB color value or CMYK color value. 3. The color printing method based on color matching according to claim 2, wherein said converting the preset color value into the color value of the ink to be printed comprises: Converting the Lab color value into the color value of the ink to be printed includes: obtaining the color value of the ink to be printed through a conversion relationship between a printing device characteristic file or a Lab color value and a CMYK value, wherein the ink to be printed The color values of include: the color values in the CMYK color mode and/or the color values in the RGB color mode. 4. The color printing method based on color matching according to claim 1, wherein the color patch target diagram comprises at least one color patch, and the color patch target diagram is in the shape of a rectangle, a hexagon, or an octagon or honeycomb shape. 5. The color printing method based on color matching according to claim 1, characterized in that, after said acquiring the color value of said target color block, said method further comprises: Establishing a corresponding relationship between the color value of the ink to be printed and the color value of the target color block; The corresponding relationship is stored. 6. The color printing method based on color matching according to claim 1, characterized in that, when receiving a printing instruction to a preset color value, replacing the color value of the ink to be printed with the color value of the target color block Color value output printing includes: receiving a print command for a preset color value; In the RIP software, replace the color value of the ink to be printed with the color value of the target color block; Outputs a print based on the color value of the target patch. 7. The color printing method based on color matching according to claim 1, characterized in that, when receiving a printing instruction to a preset color value, replacing the color value of the ink to be printed with the color value of the target color block Color value output printing includes: receiving a print command for a preset color value; In the image processing software before the RIP software processing, the color value of the ink to be printed is replaced with the color value of the target color block; Input the color value of the target color block into the RIP software for processing to obtain the print data; Print the print data output. 8. The color printing method based on color matching according to any one of claims 1 to 7, wherein the generating a color patch target map according to the color value of the ink to be printed comprises: Automatically generate a color block target map according to the color value of the ink to be printed and the floating range of each ink channel. 9. The color printing method based on color matching according to claim 8, wherein the automatic generation of the color patch target map according to the color value of the ink to be printed and the floating range of each ink channel comprises: The permutation and combination rule is adopted or the color value of the ink to be printed is decreased or increased according to the floating range of each ink channel. 10. A color printing device based on color matching, characterized in that the device comprises: The first obtaining module is used to obtain a preset color value; A conversion module, configured to convert the preset color value into the color value of the ink to be printed; A color patch target image generating module, configured to generate a color patch target image according to the color value of the ink to be printed; A search module, configured to find, from the color block target map, a target color block that is consistent with the color of the preset color value; The second acquisition module acquires the color value of the target color block; The replacement module is configured to replace the color value of the ink to be printed with the color value of the target color block and print when receiving a printing instruction for a preset color value. 11. A color printing device, characterized in that the color printing device comprises: At least one processor, at least one memory, and computer program instructions stored in the memory, which when executed by the processor implement the method according to any one of claims 1-9. 12. A storage medium, on which computer program instructions are stored, wherein the method according to any one of claims 1-9 is implemented when the computer program instructions are executed by a processor.

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