CN112512184B - A color-taking lighting control method, device, system and storage medium - Google Patents

Abstract

The invention provides a color-taking lighting control method, device, system and storage medium, and relates to the technical field of display screen background lights. The color-taking lighting control method of the present invention includes: obtaining a screen image of a display screen through an image capture device; determining an RGB value based on the screen image; and controlling the color of a background light corresponding to the display screen based on the RGB value. . The technical solution of the present invention acquires the screen image of the display screen through an image capture device, and then determines the RGB value based on the screen image, thereby controlling the color of the background light according to the RGB value, thereby achieving synchronization of the background light of the display screen and the color of the screen image; And the image capture device can be installed on any display screen, effectively increasing the application breadth of the color lighting control method; at the same time, compared with the control method of using a built-in motherboard to obtain the screen color and then control the background light, the cost is lower, so it is more convenient. It is conducive to improving the promotion of color lighting control methods.

Description

A color-taking lighting control method, device, system and storage medium

Technical field

The present invention relates to the technical field of display screen background lights, and specifically to a color lighting control method, device, system and storage medium.

Background technique

Some existing brands of display screens obtain the screen color through the built-in motherboard and then control the external background light. However, most display screens currently on the market do not have this function and only achieve background lighting through a separately set external background light. However, The existing external background lights set separately can only display one or several fixed colors, which do not completely match the screen color of the display screen, making it difficult for the background lighting to meet user needs.

Contents of the invention

The problem solved by the present invention is that the existing external background light provided separately does not completely match the color of the screen image.

In order to solve the above problems, the present invention provides a color-taking lighting control method, which includes: obtaining a screen image of a display screen through an image capture device; determining an RGB value according to the screen image; and controlling a light corresponding to the display screen according to the RGB value. The color of the background light.

The color-taking lighting control method of the present invention obtains the screen image of the display screen through the image capture device, and then determines the RGB value according to the screen image, thereby controlling the color of the background light according to the RGB value, realizing the background light of the display screen and the color of the screen image. synchronization; and the image capture device can be installed at any display screen, effectively increasing the application breadth of the color lighting control method; at the same time, compared with the built-in motherboard to obtain the screen color and then control the background light control method, the cost is lower , which is more conducive to improving the promotion of color lighting control methods.

Preferably, obtaining the screen image of the display screen through the image capturing device includes: correcting the image capturing device; and obtaining the screen image through the corrected image capturing device.

The color pickup lighting control method of the present invention improves the color pickup accuracy of the image capture device by correcting the image capture device before acquiring the screen image, thereby effectively improving the accuracy and effectiveness of the color pickup lighting control method.

Preferably, there is a height difference between the image capture device and the display plane of the display screen; the correction of the image capture device includes: obtaining an initial screen image through the image capture device; sending the initial screen image to a mobile phone Terminal, so that the mobile terminal performs a calibration operation, wherein the calibration operation includes: moving multiple calibration points to corresponding corner positions of the initial screen image to complete the calibration operation; receiving the mobile terminal calibration operation information, and correct the image capture device according to the calibration operation information.

The color pickup lighting control method of the present invention improves the color pickup accuracy of the image capture device by correcting the image capture device before acquiring the screen image, thereby effectively improving the accuracy and effectiveness of the color pickup lighting control method.

Preferably, determining the RGB value according to the screen image includes: performing perspective transformation on the screen image to obtain a front view; dividing the front view into multiple areas, and obtaining YUV values of multiple areas; Convert the YUV values to the RGB values.

The color-picking lighting control method of the present invention obtains a front view by performing perspective transformation on the screen image, thereby solving the problem of serious deformity and imbalance of the collected pictures, thereby improving the color-picking accuracy of the image capture device, thereby effectively improving the Accuracy and effectiveness of color-picking lighting control methods.

Preferably, controlling the color of the background light corresponding to the display screen according to the RGB value includes: controlling the color of a plurality of light strips according to the RGB value to control the color of the plurality of light strips. The color of the background light.

The color-taking lighting control method of the present invention controls the colors of multiple light strips according to RGB values to control the color of the background light composed of multiple light strips, thereby realizing the correspondence between the color of the background light and the screen image of the display screen, and thereby The accuracy and effectiveness of the color-picking lighting control method are effectively improved.

Preferably, the color picking lighting control method further includes: using an enhancement algorithm to enhance the RGB values, and sending the enhanced RGB values to the background light to control the color of the background light.

The color-picking lighting control method of the present invention enhances the RGB value through an enhancement algorithm to increase the brightness of the background light, and reduces the lightening of the screen color collected by the camera due to factors such as lighting factors or mirror reflection, so that the color of the background light and The brightness corresponds to the color and brightness of the display screen to a high degree, which effectively improves the effectiveness of the color lighting control method.

The invention also provides a color-taking lighting control device, which includes: an acquisition module for acquiring a screen image of a display screen through an image capture device; a determination module for determining RGB values based on the screen image; and a control module for determining the RGB value based on the screen image. The RGB values control the color of the backlight. The color-picking lighting control device and the above-mentioned color-picking lighting control method have the same advantages over the prior art, and will not be described again here.

The present invention also provides a color-picking lighting control device, which includes a computer-readable storage medium storing a computer program and a processor. When the computer program is read and run by the processor, the color-picking lighting control device as described above is implemented. Control Method. The color-picking lighting control device and the above-mentioned color-picking lighting control method have the same advantages over the prior art, and will not be described again here.

Another embodiment of the present invention provides a color capturing lighting control system, including an image capturing device and the color capturing lighting control device as described above. The color-picking lighting control system and the above-mentioned color-picking lighting control method have the same advantages over the prior art, and will not be described again here.

The present invention also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program. When the computer program is read and run by a processor, the color-taking lighting control method as described above is implemented. The computer-readable storage medium has the same advantages as the above-mentioned color-picking and lighting control method over the existing technology, which will not be described again here.

Description of the drawings

Figure 1 is a flow chart of a color-taking lighting control method according to an embodiment of the present invention;

Figure 2 is a schematic diagram of the installation position of the image capture device according to the embodiment of the present invention;

FIG. 3 is a schematic diagram of calibration of the image capture device according to the embodiment of the present invention.

Detailed ways

In order to make the above objects, features and advantages of the present invention more obvious and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in Figure 1, an embodiment of the present invention provides a color-taking lighting control method, which includes: obtaining a screen image of a display screen through an image capture device; determining an RGB value based on the screen image; and controlling and controlling the display based on the RGB value based on the RGB value. The color of the background light corresponding to the display.

Specifically, in this embodiment, as shown in FIG. 1 , the color-taking lighting control method includes: obtaining the screen image of the display screen through an image capture device; determining the RGB value according to the screen image; and controlling the background corresponding to the display screen according to the RGB value. The color of the lamp.

The image capture device can be a camera module of a camera. After installing a camera on a display screen of a TV or a computer, the screen image of the display screen is acquired through the image capture device of the camera, that is, the screen information (such as the image of a TV screen) is collected through a large-angle lens. YUV value), process the YUV value into an RGB value; control the color of the background light according to the RGB value, that is, the DSP chip of the camera sends the RGB value to the light strip of the background light, so that the light strip in a specific area displays the color corresponding to the RGB value . Since the color displayed by the background light is based on the screen image of the display screen collected by the camera, synchronization of the display background light and screen image color is achieved; at the same time, because the camera is detachable, the image capture device can be installed on any display screen This effectively improves the application breadth of the color-picking lighting control method; at the same time, compared with the control method of using a built-in motherboard to obtain the screen color and then control the background light, the cost is lower, so it is more conducive to improving the promotion of the color-picking lighting control method. .

Optionally, the obtaining the screen image of the display screen through the image capturing device includes: correcting the image capturing device; and obtaining the screen image through the corrected image capturing device.

Specifically, in this embodiment, obtaining the screen image of the display screen through the image capture device includes: installing a camera at the top or bottom of the display screen, as shown in FIG. 2 , for example, when the camera is installed at the top of the display screen, the camera is The installation position of the camera will be displayed on the mobile terminal connected by communication; the image capture device is corrected; and the screen image is obtained through the corrected image capture device. Due to factors such as the accuracy of the installation position and the tilt angle above the TV, color picking errors may occur, so users need to calibrate before using the camera to pick colors. By correcting the image capturing device of the camera before acquiring the screen image, the color picking accuracy of the image capturing device is improved, thereby effectively improving the accuracy and effectiveness of the color picking lighting control method.

In this embodiment, by calibrating the image capturing device before acquiring the screen image, the color picking accuracy of the image capturing device is improved, thereby effectively improving the accuracy and effectiveness of the color picking lighting control method.

Optionally, there is a height difference between the image capture device and the display plane of the display screen; the correction of the image capture device includes: obtaining an initial screen image through the image capture device; sending the initial screen image to Mobile terminal, so that the mobile terminal performs a calibration operation, wherein the calibration operation includes: moving multiple calibration points to corresponding corner positions of the initial screen image to complete the calibration operation; receiving the movement Calibration operation information of the terminal, and correcting the image capture device according to the calibration operation information.

Specifically, in this embodiment, correcting the image capture device includes: acquiring an initial screen; sending the initial screen to the mobile terminal, so that the mobile terminal performs a calibration operation, wherein the calibration operation includes: moving multiple calibration points to Corresponding corner positions of the initial screen image to complete the calibration operation; receive calibration operation information from the mobile terminal, and correct the image capture device according to the calibration operation information. Due to factors such as the accuracy of the installation position and the tilt angle above the TV, color picking errors may occur, that is, there is a height difference between the image capture device and the display plane of the display screen. Therefore, users need to calibrate before using the camera to pick colors. As shown in Figure 3, after the preparation process is in place, the image capture device of the camera obtains the initial screen image and sends it to the mobile terminal. The mobile terminal performs a calibration operation, including: the user drags five calibration points to the corresponding ones of the initial screen image. corner position, and sends the calibration operation information, that is, the user's calibration operation, to the image capture device, so that the image capture device can correct the camera according to the user's calibration operation. By correcting the image capturing device before acquiring the screen image, the color picking accuracy of the image capturing device is improved, thereby effectively improving the accuracy and effectiveness of the color picking lighting control method.

In this embodiment, by calibrating the image capturing device before acquiring the screen image, the color picking accuracy of the image capturing device is improved, thereby effectively improving the accuracy and effectiveness of the color picking lighting control method.

Optionally, determining the RGB value according to the screen image includes: performing perspective transformation on the screen image to obtain a front view; dividing the front view into multiple areas, and obtaining YUV values of multiple areas ;Convert the YUV value to the RGB value.

Specifically, in this embodiment, determining the RGB value based on the screen image includes: performing perspective transformation on the screen image to obtain a front view; dividing the front view into multiple areas and obtaining YUV values of the multiple areas; converting the YUV values is the RGB value. Since there is a height difference between the image capture device and the display plane of the display screen, that is, the camera is not placed directly in front of the display screen, there is a problem of serious deformity and imbalance in the captured images. Therefore, perspective transformation is required to adjust the screen image. Processing, that is, adjusting the proportion of images at different locations far and near from the camera to obtain a front view; since the lighting conditions of different areas are different, the front view is divided into multiple areas, and the YUV values of multiple areas are obtained, and Multiple YUV values are converted into RGB values to control the corresponding color of the light strip at the corresponding position of the background light. The front view is obtained by performing perspective transformation on the screen image, which solves the problem of serious deformity and imbalance of the collected pictures, thereby improving the color picking accuracy of the image capture device, thus effectively improving the accuracy and effectiveness of the color picking lighting control method.

In this embodiment, the front view is obtained by performing perspective transformation on the screen image, which solves the problem of serious deformity and imbalance of the captured picture, thereby improving the color picking accuracy of the image capture device, thereby effectively improving the color picking lighting control method. accuracy and effectiveness.

Optionally, controlling the color of the background light corresponding to the display screen according to the RGB value includes: controlling the color of a plurality of light strips according to the RGB value to control all lights composed of a plurality of the light strips. Describes the color of the background light.

Specifically, in this embodiment, controlling the color of the background light corresponding to the display screen according to RGB values includes: controlling the colors of multiple light strips according to RGB values to control the color of the background light composed of multiple light strips. By obtaining the YUV value of a frame in the corresponding area, convert the YUV value into an RGB value, and control the color of the light strip through the RGB value. Since the YUV values in different areas are different, the final color of the background light is determined by the color of each light strip. Color combinations show. Control the color of multiple light strips according to the RGB value to control the color of the background light composed of multiple light strips, realizing the correspondence between the background light color and the display screen image, thereby effectively improving the accuracy and accuracy of the color lighting control method. effectiveness.

In this embodiment, the colors of multiple light strips are controlled according to RGB values to control the color of the background light composed of multiple light strips, thereby realizing the correspondence between the color of the background light and the screen image of the display screen, thereby effectively improving color picking. Accuracy and effectiveness of lighting control methods.

Optionally, the color-picking lighting control method further includes: using an enhancement algorithm to enhance the RGB values, and sending the enhanced RGB values to the background light to control the color of the background light.

Specifically, in this embodiment, the color-taking lighting control method also includes: using an enhancement algorithm to enhance RGB values, and sending the enhanced RGB values to the background light to control the color of the background light. Due to lighting factors or mirror reflection in the user's home, the color of the screen captured by the camera becomes lighter. Therefore, an enhancement algorithm (also called a color exaggeration algorithm) needs to be used to enhance the brightness of the color (for example, if the exaggeration degree is 60%, then the exaggeration algorithm is: r=r*160%, g=g*160%, b=b*160%). With the popularity of OLED TVs, since each pixel is self-illuminating, the problem of specular reflection becomes smaller. For TVs or monitors with other panels, color enhancement technology is used to restore the original colors. At the same time, by calibrating the color temperature, it solves the problem of warmer near-end color temperature and colder far-end color temperature. The RGB value is enhanced through the enhancement algorithm to increase the brightness of the background light, reducing the lightening of the screen color captured by the camera due to factors such as lighting factors or mirror reflection, so that the color and brightness of the background light correspond to the color and brightness of the display screen to a high degree. , effectively improving the effectiveness of the color lighting control method.

In this embodiment, the enhancement algorithm is used to enhance the RGB value and thereby increase the brightness of the background light, thereby reducing the lightening of the screen color captured by the camera due to factors such as lighting factors or mirror reflection, so that the color and brightness of the background light are consistent with the display screen. The high degree of correspondence between color and brightness effectively improves the effectiveness of the color lighting control method.

Another embodiment of the present invention provides a color-taking lighting control device, which includes: an acquisition module for acquiring a screen image of a display screen through an image capture device; a determination module for determining RGB values according to the screen image; a control module, Used to control the color of the background light based on the RGB value.

Another embodiment of the present invention provides a color-picking lighting control device, which includes a computer-readable storage medium storing a computer program and a processor. When the computer program is read and run by the processor, the above-mentioned method is implemented. Color lighting control methods.

In this embodiment, the color-taking lighting control device may be a DSP chip of the camera.

Another embodiment of the present invention provides a color capturing lighting control system, including an image capturing device and the color capturing lighting control device as described above. Among them, taking a camera as a color lighting control system as an example, it includes an image capture device for collecting screen images of a display screen, and a color lighting control device for implementing a color lighting control method.

In this embodiment, the image capture device may be a camera module of the camera. That is to say, the above color capturing and lighting control method can be completed only through the camera module and DSP chip of the camera.

Another embodiment of the present invention provides a computer-readable storage medium. The computer-readable storage medium stores a computer program. When the computer program is read and run by a processor, the above-mentioned color picking and lighting control method is implemented. .

Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the disclosure of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims (7)

1. A color taking illumination control method, characterized by comprising:

the method for acquiring the screen image of the display screen through the external image capturing device specifically comprises the following steps: acquiring an initial screen picture through the image capturing device; transmitting the initial screen picture to a mobile terminal so as to enable the mobile terminal to execute a calibration operation, wherein the calibration operation comprises the following steps: moving a plurality of calibration points to corresponding corner positions of the initial screen picture so as to complete the calibration operation; receiving calibration operation information of the mobile terminal, and correcting the image capturing device according to the calibration operation information; acquiring the screen image through the corrected image capturing device;

determining RGB values according to the screen image;

and controlling the color of a background light corresponding to the display screen according to the RGB value, wherein the color-taking illumination control method further comprises the following steps: and enhancing the RGB values by adopting an enhancement algorithm, and sending the enhanced RGB values to the background lamp so as to control the color of the background lamp.

2. The method of claim 1, wherein determining RGB values from the screen image comprises:

performing perspective transformation on the screen image to obtain a front view;

dividing the front view into a plurality of areas, and acquiring YUV values of the plurality of areas;

converting the YUV values to the RGB values.

3. The color-taking illumination control method according to claim 2, wherein the controlling the color of the backlight corresponding to the display screen according to the RGB values includes:

and controlling the colors of a plurality of lamp bands according to the RGB values so as to control the colors of the background lamps formed by a plurality of lamp bands.

4. A color taking illumination control apparatus, comprising:

the acquisition module is used for acquiring a screen image of the display screen through an external image capturing device and specifically comprises the following steps: acquiring an initial screen picture through the image capturing device; transmitting the initial screen picture to a mobile terminal so as to enable the mobile terminal to execute a calibration operation, wherein the calibration operation comprises the following steps: moving a plurality of calibration points to corresponding corner positions of the initial screen picture so as to complete the calibration operation; receiving calibration operation information of the mobile terminal, and correcting the image capturing device according to the calibration operation information; acquiring the screen image through the corrected image capturing device;

a determining module for determining RGB values according to the screen image;

and the control module is used for controlling the color of the background light according to the RGB value, enhancing the RGB value by adopting an enhancement algorithm, and sending the enhanced RGB value to the background light so as to control the color of the background light.

5. A color taking illumination control apparatus comprising a computer-readable storage medium storing a computer program and a processor, the computer program, when read and executed by the processor, implementing the color taking illumination control method according to any one of claims 1-3.

6. A color taking illumination control system comprising an image capturing device and the color taking illumination control device of claim 5.

7. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program which, when read and run by a processor, implements the color taking illumination control method according to any one of claims 1-3.