CN113160091A - Color temperature adjusting method and device of display equipment, storage medium and electronic equipment - Google Patents
Color temperature adjusting method and device of display equipment, storage medium and electronic equipment Download PDFInfo
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Abstract
The present disclosure provides a color temperature adjustment method, apparatus, storage medium and electronic device for a display device, the method comprising: determining a second coordinate in a second coordinate system according to a preset conversion relation and a first coordinate of the target color temperature in the first coordinate system; and adjusting the white point of the display equipment to a second coordinate to enable the color temperature of the display equipment to be the target color temperature, wherein the first coordinate is a coordinate system corresponding to the target color temperature in a preset color standard, and the second coordinate is a color coordinate system of the display equipment. Through the scheme disclosed by the disclosure, the color temperature of the display equipment to be adjusted can be quickly adjusted, the adjusting time is shortened, and the adjusting efficiency of the equipment is improved.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a color temperature adjustment method and apparatus for a display device, a storage medium, and an electronic device.
Background
The monitor is a product series which has the highest requirement for color management among display products. The product applied to the broadcasting and television broadcasting field aims to create shocking movies and video broadcasting pictures. In color adjustment, white point adjustment (i.e., color temperature adjustment) is a very important loop. The white color is measured according to different illumination, and different standards are specified to reflect the perception of the human visual system to the white color under different light rays. Therefore, each display is an extremely important part for color temperature adjustment of the white color point. In addition, because the color temperature presented by each display device is different due to slight differences of manufacturing materials or manufacturing processes when each display device is produced in a factory, the color coordinates corresponding to the white point of each display device are different, and color temperature adjustment needs to be performed on the display device before the display device leaves the factory in order to ensure that the white color of each product leaves the factory is consistent.
At present, the color temperature can be manually adjusted, whether the display equipment reaches the standard color temperature or not is judged based on human eyes, however, human resources are greatly wasted by manually adjusting, and when the number of the display equipment to be adjusted is too large, the manual debugging cannot meet the requirement of rapid equipment adjustment. In some cases, the adjustment may also be automated with the aid of a computer, i.e. traversing different RGB (red, green, blue) ratios in the color space of the display device, searching the white point coordinate that meets the target color temperature in an exhaustive manner, but the range of RGB coordinates to be searched in the traversing search manner is large, taking a 10-bit image system as an example, at most 2 searches need to be performed30Secondly, cause very big operation burden, it is higher to the computing power of computer processor, and the operation is also longer consuming time, seriously influences efficiency and the cost of regulation.
Disclosure of Invention
An object of the embodiments of the present disclosure is to provide a color temperature adjustment method and apparatus for a display device, a storage medium, and an electronic device, so as to solve the problems of low adjustment efficiency and long time consumption of the display device in the prior art.
The embodiment of the disclosure adopts the following technical scheme: a color temperature adjustment method of a display device, comprising: determining a second coordinate in a second coordinate system according to a preset conversion relation and a first coordinate of the target color temperature in the first coordinate system; adjusting the white point of the display device to the second coordinate so that the color temperature of the display device is the target color temperature; the first coordinate system is a coordinate system corresponding to the target color temperature in a preset color standard, and the second coordinate system is a color coordinate system of the display equipment.
In some embodiments, after determining the second coordinate, the method further includes: determining a traversal region in the second coordinate system based on the second coordinates and the first error range; traversing all coordinate points in the traversal area, and determining a third coordinate of which the color temperature meets a first preset condition in the traversal area; and adjusting the white point of the display device to the third coordinate so that the color temperature of the display device is the target color temperature.
In some embodiments, the first preset condition includes at least one of: the color temperature corresponding to the third coordinate is the same as the target color temperature; and the error between the color temperature corresponding to the third coordinate and the target color temperature is less than or equal to a second error range.
In some embodiments, the preset conversion relationship is determined based on the following steps: determining a first transformation matrix between a first coordinate system and a predetermined linear coordinate system; determining a second transformation matrix between the second coordinate system and the predetermined linear coordinate system; and determining the preset conversion relation based on the first conversion matrix and the second conversion matrix.
In some embodiments, the determining the preset conversion relationship based on the first conversion matrix and the second conversion matrix includes: determining the preset conversion relationship as a product between the second conversion matrix and an inverse conversion matrix of the first conversion matrix.
An embodiment of the present disclosure also provides a color temperature adjustment device of a display apparatus, including: the determining module is used for determining a second coordinate in a second coordinate system according to a preset conversion relation and a first coordinate of the target color temperature in a first coordinate system, wherein the first coordinate system is a coordinate system corresponding to the target color temperature in a preset color standard, and the second coordinate system is a color coordinate system of the display equipment; and the adjusting module is used for adjusting the white point of the display equipment to the second coordinate so as to enable the color temperature of the display equipment to be the target color temperature.
In some embodiments, the determining module is further configured to: determining a traversal region in the second coordinate system based on the second coordinates and the first error range; traversing all coordinate points in the traversal area, and determining a third coordinate of which the color temperature meets a first preset condition in the traversal area; the adjusting module is further configured to: and adjusting the white point of the display device to the third coordinate so that the color temperature of the display device is the target color temperature.
In some embodiments, the determining module is further configured to: determining a first transformation matrix between a first coordinate system and a predetermined linear coordinate system; determining a second transformation matrix between the second coordinate system and the predetermined linear coordinate system; and determining the preset conversion relation based on the first conversion matrix and the second conversion matrix.
Embodiments of the present disclosure also provide a storage medium having a computer program stored thereon, which when executed by a processor, performs the steps of the color temperature adjustment method of the display device described above.
An embodiment of the present disclosure further provides an electronic device, which at least includes a memory and a processor, where the memory stores a computer program thereon, and the processor implements the steps of the color temperature adjustment method of the display device when executing the computer program on the memory.
The beneficial effects of this disclosed embodiment lie in: based on the preset conversion relationship between the first coordinate system corresponding to the color space of the target color temperature and the second coordinate system corresponding to the color space of the display equipment to be adjusted currently, the coordinate of one point in the second coordinate system is determined to be the second coordinate, so that the second coordinate is overlapped with the first coordinate after being converted through the preset conversion relationship, and at the moment, the white point of the display equipment to be adjusted can be adjusted to the second coordinate, so that the color temperature of the display equipment to be adjusted is the same as the target color temperature, the rapid adjustment of the color temperature of the display equipment to be adjusted is realized, the adjustment time is shortened, and the adjustment efficiency of the equipment is improved.
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In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of different color spaces;
FIG. 2 is a flowchart illustrating a color temperature adjustment method for a display device according to a first embodiment of the disclosure;
fig. 3 is a flow chart of an implementation of the determination of the predetermined transformation relation in the first embodiment of the present disclosure;
FIG. 4 is a schematic view of a traversal region in a first embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a color temperature adjustment apparatus of a display device according to a first embodiment of the disclosure;
fig. 6 is a schematic structural diagram of an electronic device in a fourth embodiment of the present disclosure.
Detailed Description
Various aspects and features of the disclosure are described herein with reference to the drawings.
It will be understood that various modifications may be made to the embodiments of the present application. Accordingly, the foregoing description should not be construed as limiting, but merely as exemplifications of embodiments. Other modifications will occur to those skilled in the art within the scope and spirit of the disclosure.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above, and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.
These and other characteristics of the present disclosure will become apparent from the following description of preferred forms of embodiment, given as non-limiting examples, with reference to the attached drawings.
It should also be understood that, although the present disclosure has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the disclosure, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present disclosure will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the disclosure that may be embodied in various forms. Well-known and/or repeated functions and structures have not been described in detail so as not to obscure the present disclosure with unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.
The specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the disclosure.
A color space is uniquely defined by coordinates of red (R), green (G), blue (B) and white (W), as shown in fig. 1, an area enclosed by each triangle in fig. 1 represents a different color space (such as NTSC, sRGB, BT2020, etc., as shown in the figure), wherein three vertexes of the triangle correspond to the coordinates of red, green and blue, respectively, the central dot corresponds to the white point coordinate, and the white point coordinate corresponds to the color temperature value.
In order to solve the problems of long time consumption and low efficiency of color temperature adjustment of the display device in the prior art, a first embodiment of the present disclosure provides a color temperature adjustment method of a display device, a flow of which is shown in fig. 2 and mainly includes steps S1 and S2:
and S1, determining a second coordinate in a second coordinate system according to the preset conversion relation and the first coordinate of the target color temperature in the first coordinate system.
The target color temperature in the present application is a definition of the color temperature exhibited by the display device based on the actual usage requirements of the device or the requirements of color standards preset in the industry. The first coordinate system is a coordinate system corresponding to the target color temperature in the preset color standard, and in the case that the target color temperature is known, the white point coordinate corresponding to the target color temperature in the first coordinate system is also determined, i.e. the first coordinate. The color space of the display device to be adjusted corresponds to the second coordinate system, and because the display device has an error during production and manufacturing, the second coordinate system cannot be completely overlapped with the first coordinate system, and the color temperature (i.e. white point coordinate) currently presented by the display device to be adjusted is also different from the target color temperature.
The preset conversion relationship in the present embodiment refers to a conversion relationship between the first coordinate system and the second coordinate system, that is, a coordinate mapping relationship between the first coordinate system and the second coordinate system determined based on matching of the color space. The first coordinate in the first coordinate system represents the target color temperature, then a point must exist in the second coordinate system, the coordinate of the point is superposed with the first coordinate after being converted into the first coordinate system through a preset conversion relation, and then when the white point of the display device is adjusted to the position of the point, the color temperature calculated based on the coordinate of the point is the target color temperature. Therefore, based on the predetermined transformation relationship and the known first coordinate, a second coordinate can be determined in the second coordinate system, so that the second coordinate is coincident with the first coordinate after being transformed into the first coordinate system.
In some embodiments, the determination of the predetermined transformation relationship between the first coordinate system and the second coordinate system may be performed by using a predetermined linear coordinate system as an intermediate. Fig. 3 shows an implementation flow of the preset transformation relation determination, which mainly includes the following steps:
s101, a first conversion matrix between a first coordinate system and a preset linear coordinate system is determined.
The predetermined linear coordinate system is a linear color definition space distinguished from the RGB coordinate system, and different color spaces can be converted into the linear color definition space according to a theoretical basis of colorimetry. Specifically, the coordinates of the red, blue and green dots in the first coordinate system are the corresponding triangles thereofThe coordinates of the three vertexes of (1) are respectively the coordinates (x) of the R pointR1,yR1,zR1) B point coordinate (x)B1,yB1,zB1) And G point coordinates (x)G1,G,zG1) First coordinate (W point) coordinate) is (x)W1,yW1,zW1) A first transformation matrix N between the first coordinate system and the predetermined linear coordinate system may be determined based on the following formula:
wherein (X)R1，YR1，ZR1) Is the coordinate value of the R point coordinate in the first coordinate system in the predetermined linear coordinate system, (X)G1，YG1，ZG1) Is the coordinate value of G point coordinate in the first coordinate system in the preset linear coordinate system, (X)B1，YB1，ZB1) Is the coordinate value of the point B in the first coordinate system in a predetermined linear coordinate system, WXYZ1The coordinates of the point w in the first coordinate system are coordinate values in the predetermined linear coordinate system.
S102, a second transformation matrix between the second coordinate system and the preset linear coordinate system is determined.
Similarly, the coordinates of the red point, the blue point and the green point in the second coordinate system are also the coordinates of the three vertexes of the corresponding triangle, and can be determined by the screen characteristics of the original display device; then, according to the same principle of determining the first transformation matrix N in step S101, a second transformation matrix M between the second coordinate system and the predetermined linear coordinate system is calculated, and the specific calculation process is not repeated.
S103, determining a preset conversion relation based on the first conversion matrix and the second conversion matrix.
According to the transformation operation which is actually required to be carried out, namely, the transformation from the second coordinate system to the first coordinate system is realized, the operation is carried out in a preset linear coordinate system, namely, the following formula is required to be satisfied:
wherein M is the second transformation matrix, N is the first transformation matrix,
coordinates characterizing a point in the second coordinate system,
the coordinates of the point in the first coordinate system correspond.
Converting the formula (4) to obtain the following formula:
based on the formula (5), it may be determined that the preset transformation relationship is a product between the second transformation matrix and an inverse transformation matrix of the first transformation matrix, and at this time, under the condition that the first coordinate in the first coordinate system and the preset transformation relationship are known, the second coordinate may be determined in the second coordinate system so as to satisfy that the second coordinate is calculated based on the preset transformation relationship and then coincides with the first coordinate.
And S2, adjusting the white point of the display device to the second coordinate so that the color temperature of the display device is the target color temperature.
After the second coordinate is determined, the coordinate of the white point of the display device to be adjusted can be adjusted to be the second coordinate, so that the color temperature of the display device determined based on the white point coordinate can be the same as the target color temperature, and the color temperature of the display device to be adjusted can be quickly adjusted.
In this embodiment, based on the preset transformation relationship between the first coordinate system corresponding to the color space of the target color temperature and the second coordinate system corresponding to the color space of the display device to be adjusted currently, the coordinate of one point in the second coordinate system is determined as the second coordinate, so that the second coordinate is overlapped with the first coordinate after being transformed by the preset transformation relationship, and at this time, the white point of the display device to be adjusted can be adjusted to the second coordinate, so that the color temperature of the display device to be adjusted is the same as the target color temperature, thereby realizing the rapid adjustment of the color temperature of the display device to be adjusted, shortening the adjustment time, and improving the adjustment efficiency of the device.
Due to the fact that the display equipment is different, errors of the measuring equipment or the numerical value after the decimal point is rounded in the calculation process, when the display equipment adjusts the actual color temperature according to the second coordinate, the finally achieved display effect cannot meet the requirement of the target color temperature. Therefore, in some embodiments, a traversal region may be determined in the second coordinate system based on the second coordinate and the preset first error range, for example, the first error range may be set to ± 30, i.e., ± 30 on the basis of the current value of each coordinate axis of the second coordinate, forming the traversal region surrounded by the black box in fig. 4. On the basis, traversing all coordinate points in the traversal area, determining a third coordinate in the area, enabling the color temperature determined based on the third coordinate to accord with a first preset condition, and adjusting the white point of the display device to the third coordinate, so that the color temperature of the display device can be displayed to the target color temperature.
Specifically, when the color temperature corresponding to the third coordinate is the same as the target color temperature, the color temperature corresponding to the third coordinate can be determined to meet the first preset condition, or when the error between the color temperature corresponding to the third coordinate and the target color temperature is smaller than the second error range, the color temperature corresponding to the third coordinate can be determined to meet the first preset condition, the second error range can be set according to the actual regulation requirement, and even if the color temperature determined based on the third coordinate is different from the target color temperature, the difference does not affect the actual use of the human eye observation or the display device. In addition, if the error between the color temperature corresponding to the plurality of coordinates and the target color temperature is smaller than the second error range in the second coordinate system, the coordinate with the minimum error can be determined as the third coordinate, so as to reduce the difference between the finally adjusted color temperature and the target color temperature as much as possible.
When the white point of the display device is in the second coordinate, the display device directly presents the target color temperature in an ideal state, in actual calculation, the color temperature value at the second coordinate may be different from the target color temperature due to the error, but the coordinate corresponding to the target color temperature in the actual second coordinate system should be in a certain range of the second coordinate, so that the accuracy of color temperature adjustment of the display device can be further improved by determining the traversal region on the basis of the second coordinate and realizing the determination of the third coordinate in the traversal region, and especially under the condition that a large amount of display devices need to be adjusted, the uniformity of the display effect can be ensured to the greatest extent. Meanwhile, the size of a search space can be effectively reduced through the traversal area determined by the second coordinate, and 2 needed to be performed originally is performed under the same 10-bit image system30Secondary search computation scale down to 218And the number of times is only 0.02% of the original number of times, so that the traversal time is greatly shortened, and the effect of improving the calculation efficiency is achieved by colleagues in improving the color temperature adjustment accuracy.
A second embodiment of the present disclosure provides a color temperature adjusting apparatus of a display device, which may be installed in any display device to be adjusted, or in a computer or processor for performing color temperature adjustment. The structure diagram of the color temperature adjusting apparatus is shown in fig. 5, and mainly includes a determining module 10 and an adjusting module 20 coupled to each other, where the determining module 10 is configured to determine a second coordinate in a second coordinate system according to a preset conversion relationship and a first coordinate of a target color temperature in a first coordinate system, where the first coordinate system is a coordinate system corresponding to the target color temperature in a preset color standard, and the second coordinate system is a color coordinate system of a display device; the adjusting module 20 is used for adjusting the white point of the display device to the second coordinate, so that the color temperature of the display device is the target color temperature.
The target color temperature in the present application is a definition of the color temperature exhibited by the display device based on the actual usage requirements of the device or the requirements of color standards preset in the industry. The first coordinate system is a coordinate system corresponding to the target color temperature in the preset color standard, and in the case that the target color temperature is known, the white point coordinate corresponding to the target color temperature in the first coordinate system is also determined, i.e. the first coordinate. The color space of the display device to be adjusted corresponds to the second coordinate system, and because the display device has an error during production and manufacturing, the second coordinate system cannot be completely overlapped with the first coordinate system, and the color temperature (i.e. white point coordinate) currently presented by the display device to be adjusted is also different from the target color temperature.
The preset conversion relationship in the present embodiment refers to a conversion relationship between the first coordinate system and the second coordinate system, that is, a coordinate mapping relationship between the first coordinate system and the second coordinate system determined based on matching of the color space. The first coordinate in the first coordinate system represents the target color temperature, then a point must exist in the second coordinate system, the coordinate of the point is superposed with the first coordinate after being converted into the first coordinate system through a preset conversion relation, and then when the white point of the display device is adjusted to the position of the point, the color temperature calculated based on the coordinate of the point is the target color temperature. Therefore, the determining module 10 may determine a second coordinate in the second coordinate system based on the predetermined transformation relationship and the known first coordinate, so that the second coordinate coincides with the first coordinate after being transformed into the first coordinate system.
In some embodiments, the determination of the predetermined transformation relationship between the first coordinate system and the second coordinate system may be performed by using a predetermined linear coordinate system as an intermediate. The determination module 10 may correspondingly determine a first conversion matrix between the first coordinate system and a predetermined linear coordinate system and a second conversion matrix between the second coordinate system and the predetermined linear coordinate system based on the coordinates of the R point, the G point, and the B point in the first coordinate system and the second coordinate system, and determine a preset conversion relationship based on the first conversion matrix and the second conversion matrix. Specifically, the preset conversion relationship may be a product between the second conversion matrix and an inverse conversion matrix of the first conversion matrix. It should be understood that the specific calculation processes of the first transformation matrix, the second transformation matrix and the predetermined transformation relation have been described in detail in the first embodiment, and detailed descriptions are not repeated in this embodiment.
After the second coordinate is determined, the adjusting module 20 may adjust the coordinate of the white point of the display device to be adjusted to the second coordinate, so that the color temperature of the display device determined based on the white point coordinate may be the same as the target color temperature, and the color temperature of the display device to be adjusted may be quickly adjusted.
Further, due to the difference of the display devices, the error of the measuring device, or the rounding of the numerical value after the decimal point in the calculation process, when the display device adjusts the actual color temperature according to the second coordinate, the finally achieved display effect can not meet the requirement of the target color temperature. Therefore, in some embodiments, the determining module 10 may determine a traversal area in the second coordinate system based on the second coordinate and the preset first error range, and on this basis, traverse all coordinate points in the traversal area to determine the third coordinate in the area, so that the color temperature determined based on the third coordinate meets the first preset condition, and at this time, the color temperature of the display device may be adjusted to the target color temperature by the adjusting module 20.
Specifically, when the color temperature corresponding to the third coordinate is the same as the target color temperature, the color temperature corresponding to the third coordinate can be determined to meet the first preset condition, or when the error between the color temperature corresponding to the third coordinate and the target color temperature is smaller than the second error range, the color temperature corresponding to the third coordinate can be determined to meet the first preset condition, the second error range can be set according to the actual regulation requirement, and even if the color temperature determined based on the third coordinate is different from the target color temperature, the difference does not affect the actual use of the human eye observation or the display device. In addition, if the error between the color temperature corresponding to the plurality of coordinates and the target color temperature is smaller than the second error range in the second coordinate system, the coordinate with the minimum error can be determined as the third coordinate, so as to reduce the difference between the finally adjusted color temperature and the target color temperature as much as possible.
When the white point of the display device is in the second coordinate, the display device directly presents the target color temperature in an ideal state, in actual calculation, the color temperature value at the second coordinate may be different from the target color temperature due to the error, but the coordinate corresponding to the target color temperature in the actual second coordinate system should be in a certain range of the second coordinate, so that the accuracy of color temperature adjustment of the display device can be further improved by determining the traversal region on the basis of the second coordinate and realizing the determination of the third coordinate in the traversal region, and especially under the condition that a large amount of display devices need to be adjusted, the uniformity of the display effect can be ensured to the greatest extent. Meanwhile, the size of a search space can be effectively reduced through the traversal area determined by the second coordinate, traversal time is greatly shortened, and the effect of improving the calculation efficiency is achieved by colleagues who improve the accuracy of color temperature adjustment.
A third embodiment of the present disclosure provides a storage medium, which may be installed in any display device to be adjusted or a computer or a processor for adjusting color temperature, and is specifically a computer-readable medium, where a computer program is stored, and when the computer program is executed by the processor, the computer program implements the method provided by any embodiment of the present disclosure, and the method includes the following steps S31 and S32:
s31, determining a second coordinate in a second coordinate system according to a preset conversion relation and a first coordinate of the target color temperature in the first coordinate system;
and S32, adjusting the white point of the display device to a second coordinate to make the color temperature of the display device be the target color temperature, wherein the first coordinate is a coordinate system corresponding to the target color temperature in the preset color standard, and the second coordinate is a color coordinate system of the display device.
After the computer program is executed by the processor to determine the second coordinate, the following steps are also executed by the processor: determining a traversal area in the second coordinate system based on the second coordinate and the first error range; traversing all coordinate points in the traversal area, and determining a third coordinate of which the color temperature meets a first preset condition in the traversal area; and adjusting the white point of the display device to the third coordinate so that the color temperature of the display device is the target color temperature.
Specifically, the first preset condition includes at least one of: the color temperature corresponding to the third coordinate is the same as the target color temperature; and the error between the color temperature corresponding to the third coordinate and the target color temperature is less than or equal to the second error range.
The computer program is further executable by the processor to perform the steps of: determining a first transformation matrix between a first coordinate system and a predetermined linear coordinate system; determining a second transformation matrix between the second coordinate system and the predetermined linear coordinate system; and determining a preset conversion relation based on the first conversion matrix and the second conversion matrix.
When the computer program is executed by the processor based on the first conversion matrix and the second conversion matrix and the preset conversion relation is determined, the processor specifically executes the following steps: the predetermined transformation relationship is determined as a product between the second transformation matrix and an inverse transformation matrix of the first transformation matrix.
In this embodiment, based on the preset transformation relationship between the first coordinate system corresponding to the color space of the target color temperature and the second coordinate system corresponding to the color space of the display device to be adjusted currently, the coordinate of one point in the second coordinate system is determined as the second coordinate, so that the second coordinate is overlapped with the first coordinate after being transformed by the preset transformation relationship, and at this time, the white point of the display device to be adjusted can be adjusted to the second coordinate, so that the color temperature of the display device to be adjusted is the same as the target color temperature, thereby realizing the rapid adjustment of the color temperature of the display device to be adjusted, shortening the adjustment time, and improving the adjustment efficiency of the device.
A fourth embodiment of the present disclosure provides an electronic device, which may be any display device to be adjusted, or a computer or a processor for adjusting color temperature of other display devices, and a schematic structural diagram of the electronic device is shown in fig. 6, which at least includes a memory 100 and a processor 200, where the memory 100 stores a computer program, and the processor 200 implements the method provided in any embodiment of the present disclosure when executing the computer program on the memory 100. Illustratively, the electronic device computer program steps are as follows S41 and S42:
s41, determining a second coordinate in a second coordinate system according to a preset conversion relation and a first coordinate of the target color temperature in the first coordinate system;
s42, adjusting the white point of the display device to a second coordinate to make the color temperature of the display device be the target color temperature, wherein the first coordinate is a coordinate system corresponding to the target color temperature in a preset color standard, and the second coordinate is a color coordinate system of the display device; .
The processor, after executing the determining second coordinates stored on the memory, further executes the following computer program: determining a traversal area in the second coordinate system based on the second coordinate and the first error range; traversing all coordinate points in the traversal area, and determining a third coordinate of which the color temperature meets a first preset condition in the traversal area; and adjusting the white point of the display device to the third coordinate so that the color temperature of the display device is the target color temperature.
Specifically, the first preset condition includes at least one of: the color temperature corresponding to the third coordinate is the same as the target color temperature; and the error between the color temperature corresponding to the third coordinate and the target color temperature is less than or equal to the second error range.
The processor also executes a computer program stored on the memory, the computer program comprising: determining a first transformation matrix between a first coordinate system and a predetermined linear coordinate system; determining a second transformation matrix between the second coordinate system and the predetermined linear coordinate system; and determining a preset conversion relation based on the first conversion matrix and the second conversion matrix.
When the processor executes the preset conversion relation stored in the memory and based on the first conversion matrix and the second conversion matrix, the following computer program is specifically executed: the predetermined transformation relationship is determined as a product between the second transformation matrix and an inverse transformation matrix of the first transformation matrix.
In this embodiment, based on the preset transformation relationship between the first coordinate system corresponding to the color space of the target color temperature and the second coordinate system corresponding to the color space of the display device to be adjusted currently, the coordinate of one point in the second coordinate system is determined as the second coordinate, so that the second coordinate is overlapped with the first coordinate after being transformed by the preset transformation relationship, and at this time, the white point of the display device to be adjusted can be adjusted to the second coordinate, so that the color temperature of the display device to be adjusted is the same as the target color temperature, thereby realizing the rapid adjustment of the color temperature of the display device to be adjusted, shortening the adjustment time, and improving the adjustment efficiency of the device.
While the present disclosure has been described in detail with reference to the embodiments, the present disclosure is not limited to the specific embodiments, and those skilled in the art can make various modifications and alterations based on the concept of the present disclosure, and the modifications and alterations should fall within the scope of the present disclosure as claimed.
Claims (10)
1. A color temperature adjustment method of a display device, comprising:
determining a second coordinate in a second coordinate system according to a preset conversion relation and a first coordinate of the target color temperature in the first coordinate system;
adjusting the white point of the display device to the second coordinate so that the color temperature of the display device is the target color temperature;
the first coordinate system is a coordinate system corresponding to the target color temperature in a preset color standard, and the second coordinate system is a color coordinate system of the display equipment.
2. The color temperature adjustment method according to claim 1, wherein after determining the second coordinate, the method further comprises:
determining a traversal region in the second coordinate system based on the second coordinates and the first error range;
traversing all coordinate points in the traversal area, and determining a third coordinate of which the color temperature meets a first preset condition in the traversal area;
and adjusting the white point of the display device to the third coordinate so that the color temperature of the display device is the target color temperature.
3. The color temperature adjustment method according to claim 2, wherein the first preset condition comprises at least one of:
the color temperature corresponding to the third coordinate is the same as the target color temperature;
and the error between the color temperature corresponding to the third coordinate and the target color temperature is less than or equal to a second error range.
4. The color temperature adjustment method according to claim 1, wherein the predetermined conversion relation is determined based on the steps of:
determining a first transformation matrix between a first coordinate system and a predetermined linear coordinate system;
determining a second transformation matrix between the second coordinate system and the predetermined linear coordinate system;
and determining the preset conversion relation based on the first conversion matrix and the second conversion matrix.
5. The color temperature adjustment method of claim 4, wherein the determining the preset conversion relationship based on the first conversion matrix and the second conversion matrix comprises:
determining the preset conversion relationship as a product between the second conversion matrix and an inverse conversion matrix of the first conversion matrix.
6. A color temperature adjusting apparatus of a display device, comprising:
the determining module is used for determining a second coordinate in a second coordinate system according to a preset conversion relation and a first coordinate of the target color temperature in a first coordinate system, wherein the first coordinate system is a coordinate system corresponding to the target color temperature in a preset color standard, and the second coordinate system is a color coordinate system of the display equipment;
and the adjusting module is used for adjusting the white point of the display equipment to the second coordinate so as to enable the color temperature of the display equipment to be the target color temperature.
7. The color temperature adjustment apparatus of claim 6, wherein the determining module is further configured to: determining a traversal region in the second coordinate system based on the second coordinates and the first error range; traversing all coordinate points in the traversal area, and determining a third coordinate of which the color temperature meets a first preset condition in the traversal area;
the adjusting module is further configured to: and adjusting the white point of the display device to the third coordinate so that the color temperature of the display device is the target color temperature.
8. The color temperature adjustment apparatus of claim 6, wherein the determining module is further configured to:
determining a first transformation matrix between a first coordinate system and a predetermined linear coordinate system;
determining a second transformation matrix between the second coordinate system and the predetermined linear coordinate system;
and determining the preset conversion relation based on the first conversion matrix and the second conversion matrix.
9. A storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the steps of the color temperature adjustment method of the display device of any one of claims 1 to 5.
10. An electronic device comprising at least a memory, a processor, the memory having a computer program stored thereon, characterized in that the processor, when executing the computer program on the memory, implements the steps of the color temperature adjustment method of a display device according to any one of claims 1 to 5.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113805780A (en) * | 2021-09-03 | 2021-12-17 | 深圳市爱协生科技有限公司 | Method for adjusting blue light of display screen |
| CN113838436A (en) * | 2021-09-27 | 2021-12-24 | 惠州Tcl移动通信有限公司 | Color temperature adjusting method and device, storage medium and electronic equipment |
| CN117198176A (en) * | 2023-09-08 | 2023-12-08 | 深圳市圆周检测技术有限公司 | Display color temperature detection method, system and readable storage medium |
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2021
- 2021-05-21 CN CN202110556287.6A patent/CN113160091A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113805780A (en) * | 2021-09-03 | 2021-12-17 | 深圳市爱协生科技有限公司 | Method for adjusting blue light of display screen |
| CN113838436A (en) * | 2021-09-27 | 2021-12-24 | 惠州Tcl移动通信有限公司 | Color temperature adjusting method and device, storage medium and electronic equipment |
| CN113838436B (en) * | 2021-09-27 | 2023-01-20 | 惠州Tcl移动通信有限公司 | Color temperature adjusting method, device, storage medium and electronic equipment |
| CN117198176A (en) * | 2023-09-08 | 2023-12-08 | 深圳市圆周检测技术有限公司 | Display color temperature detection method, system and readable storage medium |
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