CN113450687A - Color management correction method, device and system - Google Patents
Color management correction method, device and system Download PDFInfo
- Publication number
- CN113450687A CN113450687A CN202010214665.8A CN202010214665A CN113450687A CN 113450687 A CN113450687 A CN 113450687A CN 202010214665 A CN202010214665 A CN 202010214665A CN 113450687 A CN113450687 A CN 113450687A
- Authority
- CN
- China
- Prior art keywords
- color management
- target
- correction
- image data
- initial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2003—Display of colours
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
Abstract
The embodiment of the invention discloses a color management correction method, a color management correction device and a color management correction system. The color management correction method comprises the following steps: acquiring an initial chromatic value of a target display screen; determining a target chromatic value in a target chromatic domain according to the initial chromatic value; calculating to obtain a color management correction coefficient according to the target chromatic value and the initial chromatic value; and completing the chrominance correction and the color management of the target display screen based on the color management correction coefficient. The color management correction method disclosed by the embodiment of the invention not only solves the problem of chromaticity uniformity, but also ensures the consistency of colors from imaging to display.
Description
Technical Field
The invention relates to the technical field of display screen correction, in particular to a color management correction method, a color management correction device and a color management correction system.
Background
The LED display screen manufacturing process level is low, so that the produced LED lamps have large chromaticity difference (for example, the chromaticity difference of the LED lamps in the same production batch is 15-20 nm), and the chromaticity difference of the LED display screens spliced by the LED lamps in different production batches is more serious. These chromaticity differences are intolerable to the human eye, and therefore new production or annual use LED displays need to be corrected for effective chromaticity.
At present, most LED display screens are subjected to chromaticity correction to solve the problem of chromaticity uniformity, but the situations that the color gamut of an input video source is different from the color gamut of the LED display screens often occur, so that the consistency of colors from imaging to displaying cannot be ensured, and the LED display screens have a series of color display errors such as incorrect colors, distorted complexion and the like.
Disclosure of Invention
Therefore, the present invention provides a color management correction method, a color management correction apparatus, a color management correction system, and a computer readable storage medium, which solve the problem in the prior art that two independent modules are required to consume two hardware resources to complete the chrominance correction and the color management, thereby wasting the hardware resources.
Specifically, in a first aspect, an embodiment of the present invention discloses a color management correction method, including: acquiring an initial chromatic value of a target display screen; determining a target chromatic value in a target chromatic domain according to the initial chromatic value; calculating to obtain a color management correction coefficient according to the target chromatic value and the initial chromatic value; and completing the chrominance correction and the color management of the target display screen based on the color management correction coefficient.
At present, the problem of chromaticity uniformity is only solved by chromaticity correction of an LED display screen, but the situation that the color gamut of an input video source is different from the color gamut of the LED display screen often occurs, so that the consistency of colors from imaging to displaying cannot be ensured, and the LED display screen has a series of color display errors such as incorrect colors, distorted complexion and the like; the color management correction method disclosed by the embodiment of the invention determines the target chromatic value based on the target color gamut by acquiring the initial chromatic value of the target display screen, calculating to obtain a color management correction coefficient according to the initial chromatic value and the target chromatic value, completing the chromatic correction and the color management of the target display screen according to the color management correction coefficient, namely, the chromaticity correction and the color management of the target display screen can be realized according to one color management correction coefficient, thereby not only solving the chromaticity uniformity problem, but also ensuring the consistency of colors from imaging to display, avoiding a series of color display errors such as color misregistration, skin color distortion and the like of the LED display screen, realizing the function of finishing the chromaticity correction and the color management at one time, for the display control card without the color management function, the color management can be realized without consuming redundant hardware resources, and the applicability is stronger.
In an embodiment of the present invention, the determining a target chroma value in a target chroma domain according to the initial chroma value comprises: and taking the chroma value with the minimum difference value with the initial chroma value in the target chroma range as the target chroma value.
In an embodiment of the present invention, the calculating a color management correction coefficient according to the target chroma value and the initial chroma value includes: and dividing the target chromatic value and the initial chromatic value to obtain the color management correction coefficient.
In one embodiment of the present invention, the performing the chrominance correction and the color management of the target display screen based on the color management correction factor comprises: and issuing the color management correction coefficient to a color management correction module of a display control card with the target display screen for storage.
In a second aspect, an embodiment of the present invention discloses a color management correction apparatus, including: the initial chromatic value obtaining module is used for obtaining an initial chromatic value of the target display screen; a target chromatic value determining module, configured to determine a target chromatic value in a target color gamut according to the initial chromatic value; a correction coefficient obtaining module, configured to calculate a color management correction coefficient according to the target chromatic value and the initial chromatic value; and the display screen correction module is used for finishing the chrominance correction and the color management of the target display screen based on the color management correction coefficient.
In an embodiment of the present invention, the display screen correction module is specifically configured to issue the color management correction coefficient to a color management correction module of a display control card with the target display screen for storage.
In a third aspect, an embodiment of the present invention discloses a color management correction method, including: receiving input initial image data; performing real-time operation on the initial image data according to a color management correction coefficient to finish the chromaticity correction and the color management of the initial image data to obtain target image data; and sending the target image data to a target display screen for displaying, wherein the color gamut of the target display screen is the same as that of the target image data.
At present, the problem of chromaticity uniformity is only solved by chromaticity correction of an LED display screen, but the situation that the color gamut of an input video source is different from the color gamut of the LED display screen often occurs, so that the consistency of colors from imaging to displaying cannot be ensured, and the LED display screen has a series of color display errors such as incorrect colors, distorted complexion and the like; the color management correction method disclosed by the embodiment of the invention obtains target image data by carrying out real-time operation on the initial image data through the color management correction coefficient to complete the chromaticity correction and the color management of the initial image data, and sends the target image data to the target display screen for display, wherein the color gamut of the target image data is the same as the color gamut of the target display screen, namely, the chromaticity correction and the color management of the initial image data can be realized according to one color management correction coefficient, thereby not only solving the chromaticity uniformity problem, but also ensuring the consistency of colors from imaging to display, avoiding a series of color display errors such as color misregistration, skin color distortion and the like of an image displayed by an LED display screen, realizing the function of completing the chromaticity correction and the color management at one time, and also realizing the color management without consuming redundant hardware resources for a display control card without the color management function, the applicability is stronger.
In an embodiment of the present invention, the performing a real-time operation on the initial image data according to a color management correction coefficient to complete a chrominance correction and a color management of the initial image data to obtain target image data includes: and performing single matrix operation on the initial image data according to the color management correction coefficient to obtain the target image data.
In a fourth aspect, an embodiment of the present invention discloses a color management correction apparatus, including: the image data receiving module is used for receiving input initial image data; the color management correction module is used for carrying out real-time operation on the initial image data according to a color management correction coefficient so as to finish the chromaticity correction and the color management of the initial image data to obtain target image data; and the image data sending module is used for sending the target image data to a target display screen for displaying, wherein the color gamut of the target display screen is the same as that of the target image data.
In a fifth aspect, an embodiment of the present invention discloses a color management correction system, including: a processor and a memory coupled to the processor; wherein the memory stores instructions for execution by the processor, and the instructions cause the processor to perform operations for performing any of the color management correction methods described above.
In a sixth aspect, an embodiment of the present invention discloses a computer-readable storage medium, which is a non-volatile memory and stores computer-readable instructions, where the computer-readable instructions include instructions for executing any one of the color management correction methods described above.
As can be seen from the above, the embodiments of the present invention can achieve one or more of the following advantages: the method not only solves the problem of chromaticity uniformity, but also ensures the consistency of colors from imaging to displaying, avoids a series of color display errors such as incorrect colors, distortion of skin colors and the like in images displayed by the LED display screen, realizes the function of completing chromaticity correction and color management at one time, can realize color management without consuming redundant hardware resources for a display control card without a color management function, and has stronger applicability.
Other aspects and features of the present invention will become apparent from the following detailed description, which proceeds with reference to the accompanying drawings. It is to be understood, however, that the drawings are designed solely for purposes of illustration and not as a definition of the limits of the invention. It should be further understood that the drawings are not necessarily drawn to scale and that, unless otherwise indicated, they are merely intended to conceptually illustrate the structures and procedures described herein.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a block diagram of a prior art display control card with color management function;
FIG. 2 is a flowchart illustrating a color management correction method according to a first embodiment of the present invention;
FIG. 3 is a block diagram of a color management calibration apparatus according to a second embodiment of the present invention;
FIG. 4 is a flowchart illustrating a color management correction method according to a third embodiment of the present invention;
FIG. 5 is a block diagram of a color management correction apparatus according to a fourth embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a color management correction system according to a fifth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a computer-readable storage medium according to a sixth embodiment of the present invention.
[ description of reference ]
S11-S14: color management correction method steps;
20: a color management correction device; 21: an initial chromatic value obtaining module; 22: a target colorimetric value determination module; 23: a correction coefficient acquisition module; 24: a display screen correction module;
S31-S33: color management correction method steps;
40: a color management correction device; 41: an image data receiving module; 42: a color management correction module; 43: an image data transmitting module;
50: a color management correction system; 51: a processor; 52: a memory;
60: a computer readable storage medium.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
[ first embodiment ] A method for manufacturing a semiconductor device
In the prior art, most display control cards support chromaticity correction but not color management, and the display control cards which do not support color management cannot ensure the consistency of colors from imaging to displaying, so that a series of color display errors such as color misregistration and skin color distortion exist in an LED display screen. As shown in fig. 1, in the prior art, a chromaticity correction module and a color management module are disposed inside a display control card supporting color management, a chromaticity correction coefficient is stored in the chromaticity correction module, a color management coefficient is stored in the color management module, and the chromaticity correction coefficient and the color management coefficient are issued by an upper computer, wherein the upper computer calculates the chromaticity correction coefficient by first calculating a common color gamut according to an initial color coordinate of a display screen, then finding a closest color coordinate in the common color gamut as a target color coordinate of chromaticity correction, then obtaining the chromaticity correction coefficient according to a color gamut conversion formula, sending the chromaticity correction coefficient to the chromaticity correction module of the display control card for storage, so as to solve the chromaticity uniformity problem of the display screen, the upper computer calculates the color management coefficient by selecting one of standard color gamuts such as bt.709 or bt.2020 as a target color gamut after the chromaticity correction of the display screen is completed, and obtaining a color management coefficient through a color gamut conversion formula, and sending the color management coefficient to a color management module of the display control card for storage so as to realize a color management function. The chrominance correction module and the color management module in the display control card are used as two independent modules, two identical hardware resources are consumed, and the hardware resources are wasted.
Based on this, referring to fig. 2, a first embodiment of the present invention discloses a color management correction method. As shown in fig. 2, the color management correction method includes, for example, steps S11 through S14.
Step S11: acquiring an initial chromatic value of a target display screen;
step S12: determining a target chromatic value in a target chromatic domain according to the initial chromatic value;
step S13: calculating to obtain a color management correction coefficient according to the target chromatic value and the initial chromatic value;
step S14: and completing the chrominance correction and the color management of the target display screen based on the color management correction coefficient.
The target display screen mentioned in step S11 is, for example, an LED display screen, and the initial chromaticity value mentioned is, for example, the initial color coordinate. The step S11 of acquiring the initial chromaticity value of the target display screen includes, for example: and acquiring an initial colorimetric value of the target display screen by using a camera or a colorimeter. The initial colorimetric values of the target display screen are acquired by using the camera, for example: the red, green and blue monochromatic images obtained by shooting are uploaded to an upper computer, and the upper computer extracts the initial color coordinates of each pixel point by using a digital image processing technology. The initial colorimetric values of the target display screen are acquired by using a colorimeter, for example: and lightening the target display screen, and acquiring and calculating by using a colorimeter to obtain the initial color coordinates of each pixel point of the target display screen.
The target color gamut mentioned in step S12 is, for example, a color gamut defined by a standard association such as International Telecommunication Union (ITU) or american digital cinema protocol, or a custom color gamut; wherein the standards association defined color gamuts include, for example: the standard color gamut such as bt.709, bt.2020, or DCI-P3, the custom color gamut may be understood as a color gamut predefined by a client according to needs, that is, some clients do not use the color gamut defined by the standards association, and select a color gamut triangle area as the standard color gamut of the company by themselves. It should be noted that the target color gamut related to this embodiment is different from the common color gamut related in the prior art, the common color gamut in the prior art needs to be calculated according to the initial chromaticity value of the target display screen, and the common color gamut obtained by the difference of the initial chromaticity values is different.
Further, step S12 includes, for example: and taking the chroma value with the minimum difference value with the initial chroma value in the target chroma range as the target chroma value.
Step S13 includes, for example: the color management correction coefficient is obtained by dividing the target chromaticity value and the initial chromaticity value, i.e., [ color management correction coefficient ] ═ target chromaticity value ] ÷ [ initial chromaticity value ]. The chromaticity correction and the color management of the target display screen can be realized by calculating one color management correction coefficient, and the problem that two correction coefficients need to be calculated in the prior art is avoided: the complicated steps of the chrominance correction coefficients and the color management coefficients.
It should be noted that, because the present invention is directed to color management correction, the luminance value may not be processed, and then, in the matrix of 3 × 3 of the color management correction coefficient, the luminance adjustment coefficients corresponding to the right diagonal lines are all 1, and of course, the luminance value may also be processed, that is, the luminance adjustment coefficient is calculated according to the initial luminance value and the target luminance value, and then the calculated luminance adjustment coefficient is placed at the right diagonal line position of the matrix of 3 × 3 of the color management correction coefficient.
Step S14 includes, for example: and issuing the color management correction coefficient to a color management correction module of a display control card with the target display screen for storage. That is, in this embodiment, one color management correction coefficient is calculated and issued to one color management correction module of the display control card for storage, so that it is avoided that two correction coefficients need to be calculated in the prior art: and the chrominance correction coefficient and the color management coefficient are respectively issued to a chrominance correction module and a color management module of the display control card for storage, so that the chrominance correction and the color management can be realized only by consuming one hardware resource, and the hardware resource is saved.
To sum up, the color management correction method disclosed in the first embodiment of the present invention obtains the initial chromaticity value of the target display screen, determines the target chromaticity value based on the target color gamut, calculates the color management correction coefficient according to the initial chromaticity value and the target chromaticity value, and completes the chromaticity correction and the color management of the target display screen according to the color management correction coefficient, that is, the chromaticity correction and the color management of the target display screen can be realized according to one color management correction coefficient, thereby solving the problem of hardware resource waste caused by the fact that two independent modules are required to consume two hardware resources to complete the chromaticity correction and the color management in the prior art, reducing the consumption of hardware resources, solving the chromaticity uniformity problem, ensuring the uniformity of colors from imaging to displaying, and avoiding a series of color display errors such as color misregistration, skin color distortion and the like of the LED display screen, the functions of chromaticity correction and color management are achieved at one time, and for a display control card without the color management function, the color management can be achieved without consuming redundant hardware resources, so that the applicability is stronger.
[ second embodiment ]
Referring to fig. 3, a second embodiment of the present invention discloses a color management correction apparatus. As shown in fig. 3, the color management correction apparatus 20 includes, for example, an initial colorimetric value acquisition module 21, a target colorimetric value determination module 22, a correction coefficient acquisition module 23, and a display screen correction module 24.
Specifically, the initial chromaticity value obtaining module 21 is configured to obtain an initial chromaticity value of the target display screen. The target colorimetric value determining module 22 is configured to determine a target colorimetric value in a target color gamut according to the initial colorimetric value. The correction coefficient obtaining module 23 is configured to calculate a color management correction coefficient according to the target chromatic value and the initial chromatic value. The display screen correction module 24 is configured to perform the color correction and color management of the target display screen based on the color management correction factor.
Further, the target chroma value determining module 22 is specifically configured to use the chroma value with the smallest difference from the initial chroma value in the target chroma domain as the target chroma value.
Further, the correction coefficient obtaining module 23 is specifically configured to divide the target chromaticity value and the initial chromaticity value to obtain the color management correction coefficient.
Further, the display screen correction module 24 is specifically configured to issue the color management correction coefficient to a color management correction module of a display control card with the target display screen for storage. Avoiding the need to calculate two correction coefficients in the prior art: and respectively issuing the chromaticity correction coefficient and the color management coefficient to a chromaticity correction module and a color management module of the display control card for storage.
It should be noted that the color management correction method implemented by the color management correction device 20 disclosed in this embodiment is as described in the first embodiment, and therefore, will not be described in detail here. Optionally, each module and the other operations or functions in the second embodiment are respectively for implementing the method in the first embodiment of the present invention, and the technical effect of the color management correction apparatus 20 disclosed in this embodiment is the same as that of the color management correction method disclosed in the first embodiment, and for brevity, are not described herein again.
[ third embodiment ]
In the prior art, most display control cards support chromaticity correction but not color management, and the display control cards which do not support color management cannot ensure the consistency of colors from imaging to displaying, so that a series of color display errors such as color misregistration and skin color distortion exist in an LED display screen. As shown in fig. 1, in the prior art, a chromaticity correction module and a color management module are disposed inside a display control card supporting color management, the chromaticity correction module stores a chromaticity correction coefficient, and the color management module stores a color management coefficient, wherein the chromaticity correction module and the color management module are used as two independent modules, which consumes two identical hardware resources, and is very wasteful of the hardware resources.
Based on this, referring to fig. 4, the third embodiment of the present invention discloses a color management correction method. As shown in fig. 4, the color management correction method includes, for example, steps S31 through S33.
Step S31: receiving input initial image data;
step S32: performing real-time operation on the initial image data according to a color management correction coefficient to finish the chromaticity correction and the color management of the initial image data to obtain target image data;
step S33: and sending the target image data to a target display screen for displaying, wherein the color gamut of the target display screen is the same as that of the target image data.
The initial image data mentioned in step S31 comes from, for example, a sending card in the LED display screen control system, wherein the initial image data includes, for example, red (R) data, green (G) data, and blue (B) data.
The chromaticity management correction coefficient mentioned in step S32 is the chromaticity management correction coefficient mentioned in the first embodiment of the present invention, and is calculated and issued by the upper computer through the method disclosed in the first embodiment. Wherein the chrominance management correction factor is for example a 3 x 3 matrix. It should be noted that, since the present embodiment is directed to color management correction, the luminance values of the initial image data may not be processed, and then the luminance adjustment coefficients corresponding to the right-angle lines in the matrix of 3 × 3 for the chromaticity management correction coefficients are all 1, and of course, the luminance values of the initial image data may also be processed, and then the luminance adjustment coefficients corresponding to the right-angle lines in the matrix of 3 × 3 for the chromaticity management correction coefficients are luminance adjustment specific coefficients.
Further, step S32 includes, for example: and performing a single matrix operation on the initial image data according to the color management correction coefficient to obtain the target image data, namely [ target image data ] ═ color management correction coefficient ] × [ initial image data ]. In the prior art, two matrix operations are required for initial image data: the chroma correction matrix operation performed according to the chroma correction coefficient and the color management matrix operation performed according to the color management coefficient can only complete the chroma correction and the color management, but the embodiment can realize the chroma correction and the color management by performing the single matrix operation on the initial image data through the color management correction coefficient, so that the consumed hardware resources are reduced, and the color management correction efficiency is improved.
The target display screen mentioned in step S33 is, for example, an LED display screen. The color gamut of the target display screen mentioned herein is a target color gamut related to the first embodiment, which is, for example, a color gamut defined by a standard association such as International Telecommunication Union (ITU) or american digital cinema association, or a custom color gamut; wherein the color gamut defined by the standards association is, for example: the custom color gamut can be understood as a color gamut which is customized by a client in advance according to needs, namely, some clients do not use the color gamut defined by the standards association, and a color gamut triangular region is selected by the client as the standard color gamut of the company.
It should be noted that the color management correction method provided in this embodiment is described based on the angle of the display control card, and the color management correction method provided in the first embodiment of the present invention is described based on the angle of the upper computer.
To sum up, the color management correction method disclosed in the embodiments of the present invention performs real-time operation on the initial image data through the color management correction coefficient to complete the chromaticity correction and the color management of the initial image data to obtain the target image data, and sends the target image data to the target display screen for display, wherein the color gamut of the target display screen is the same as the color gamut of the target image data, i.e. the chromaticity correction and the color management of the initial image data can be realized according to one color management correction coefficient, thereby solving the problem of hardware resource waste caused by the fact that two independent modules need to consume two hardware resources to complete the chromaticity correction and the color management in the prior art, reducing the consumption of hardware resources, solving the chromaticity uniformity problem, ensuring the uniformity of colors from imaging to displaying, and avoiding the phenomenon that the images displayed on the LED display screen have incorrect colors, the functions of chroma correction and color management are completed at one time due to a series of color display errors such as skin color distortion, and the like.
[ fourth example ] A
Referring to fig. 5, a fourth embodiment of the present invention discloses a color management correction apparatus. As shown in fig. 5, the color management correction apparatus 40 includes, for example, an image data receiving module 41, a color management correction module 42, and an image data transmitting module 43.
Specifically, the image data receiving module 41 is configured to receive input initial image data. The color management correction module 42 is configured to perform real-time operation on the initial image data according to the color management correction coefficient to complete the chromaticity correction and color management of the initial image data to obtain target image data. The image data sending module 43 is configured to send the target image data to a target display screen for displaying, where a color gamut of the target display screen is the same as a color gamut of the target image data.
Further, the color management correction module 42 is specifically configured to: and performing single matrix operation on the initial image data according to the color management correction coefficient to obtain the target image data. In the prior art, two matrix operations are required for initial image data: the chrominance correction and the color management can be completed only by performing the chrominance correction matrix operation according to the chrominance correction coefficient and performing the color management matrix operation according to the color management coefficient, but the color management correction module of the embodiment can realize the chrominance correction and the color management by performing the single matrix operation on the initial image data according to the color management correction coefficient, so that the consumed hardware resources are reduced, and the color management correction efficiency is improved.
It should be noted that the color management correction method implemented by the color management correction device 40 disclosed in this embodiment is as described in the third embodiment, and therefore, will not be described in detail here. Optionally, each module and the other operations or functions in the fourth embodiment are respectively for implementing the method in the third embodiment of the present invention, and the technical effect of the color management correction apparatus 40 disclosed in this embodiment is the same as that of the color management correction method disclosed in the third embodiment, and for brevity, no further description is given here.
[ fifth embodiment ]
Referring to fig. 6, a fifth embodiment of the present invention discloses a color management correction system. As shown in fig. 6, the color management correction system 50 includes, for example: a processor 51 and a memory 52 connected to the processor 51. Wherein the memory 52 stores instructions executed by the processor 51, and the instructions cause the processor 51 to perform operations to perform the color management correction method according to the first embodiment or the third embodiment.
It should be noted that the color management correction system 50 disclosed in this embodiment has instructions that enable the processor 51 to execute operations to perform the color management correction method as described in the foregoing first embodiment or the third embodiment, and therefore, the detailed description thereof is omitted here. Optionally, in order to implement the method in the first embodiment or the third embodiment of the present invention in each of the processors and the memories in this embodiment, the technical effect of the color management correction system 50 disclosed in this embodiment is the same as that of the color management correction method in the first embodiment or the third embodiment, and details are not repeated here.
[ sixth embodiment ]
Referring to fig. 7, a sixth embodiment of the present invention discloses a computer-readable storage medium. As shown in fig. 7, computer-readable storage medium 60 stores computer-readable instructions. The computer-readable instructions include instructions for performing the color management correction method according to the first embodiment or the third embodiment, and therefore will not be repeated here. The computer-readable storage medium 60 is, for example, a non-volatile memory, and includes: magnetic media (e.g., hard disks, floppy disks, and magnetic tape), optical media (e.g., CDROM disks and DVDs), magneto-optical media (e.g., optical disks), and hardware devices specially constructed for storing and executing computer-executable instructions (e.g., Read Only Memories (ROMs), Random Access Memories (RAMs), flash memories, etc.). Computer-readable storage medium 60 may execute computer-readable instructions by one or more processors or processing devices.
In addition, the technical effect of the computer-readable storage medium 60 disclosed in this embodiment is the same as that of the color management correction method in the first embodiment or the third embodiment, and is not repeated herein.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and/or method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and the actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A color management correction method, comprising:
acquiring an initial chromatic value of a target display screen;
determining a target chromatic value in a target chromatic domain according to the initial chromatic value;
calculating to obtain a color management correction coefficient according to the target chromatic value and the initial chromatic value;
and completing the chrominance correction and the color management of the target display screen based on the color management correction coefficient.
2. The color management correction method of claim 1, wherein said determining a target chroma value in a target chroma domain based on the initial chroma value comprises:
and taking the chroma value with the minimum difference value with the initial chroma value in the target chroma range as the target chroma value.
3. The color management correction method of claim 1, wherein said calculating a color management correction factor based on said target chroma value and said initial chroma value comprises: and dividing the target chromatic value and the initial chromatic value to obtain the color management correction coefficient.
4. The color management correction method of claim 1, wherein said performing chrominance correction and color management of said target display screen based on said color management correction factor comprises:
and issuing the color management correction coefficient to a color management correction module of a display control card with the target display screen for storage.
5. A color management correction apparatus, comprising:
the initial chromatic value obtaining module is used for obtaining an initial chromatic value of the target display screen;
a target chromatic value determining module, configured to determine a target chromatic value in a target color gamut according to the initial chromatic value;
a correction coefficient obtaining module, configured to calculate a color management correction coefficient according to the target chromatic value and the initial chromatic value;
and the display screen correction module is used for finishing the chrominance correction and the color management of the target display screen based on the color management correction coefficient.
6. The color management correction device of claim 5, wherein the display screen correction module is specifically configured to send the color management correction factor to a color management correction module of a display control card with the target display screen for storage.
7. A color management correction method, comprising:
receiving input initial image data;
performing real-time operation on the initial image data according to a color management correction coefficient to finish the chromaticity correction and the color management of the initial image data to obtain target image data;
and sending the target image data to a target display screen for displaying, wherein the color gamut of the target display screen is the same as that of the target image data.
8. The color management correction method of claim 7, wherein said performing real-time operation on said initial image data according to color management correction coefficients to complete the chrominance correction and color management of said initial image data to obtain target image data comprises:
and performing single matrix operation on the initial image data according to the color management correction coefficient to obtain the target image data.
9. A color management correction apparatus, comprising:
the image data receiving module is used for receiving input initial image data;
the color management correction module is used for carrying out real-time operation on the initial image data according to a color management correction coefficient so as to finish the chromaticity correction and the color management of the initial image data to obtain target image data;
and the image data sending module is used for sending the target image data to a target display screen for displaying, wherein the color gamut of the target display screen is the same as that of the target image data.
10. A color management correction system, comprising: a processor and a memory coupled to the processor; wherein the memory stores instructions for execution by the processor and the instructions cause the processor to perform operations to perform the color management correction method of any of claims 1-4 and 7-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010214665.8A CN113450687A (en) | 2020-03-24 | 2020-03-24 | Color management correction method, device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010214665.8A CN113450687A (en) | 2020-03-24 | 2020-03-24 | Color management correction method, device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113450687A true CN113450687A (en) | 2021-09-28 |
Family
ID=77806686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010214665.8A Pending CN113450687A (en) | 2020-03-24 | 2020-03-24 | Color management correction method, device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113450687A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115311167A (en) * | 2022-08-24 | 2022-11-08 | 深圳新视光电科技有限公司 | Color gamut control method, device and equipment based on multicolor light and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004091223A1 (en) * | 2003-04-08 | 2004-10-21 | Olympus Corporation | Imaging system, image processing program |
| JP2013238793A (en) * | 2012-05-17 | 2013-11-28 | Mitsubishi Electric Corp | Video display device |
| CN104091566A (en) * | 2014-07-21 | 2014-10-08 | 西安诺瓦电子科技有限公司 | Display screen bright color degree adjustment method and LED display control method and system |
| CN105632398A (en) * | 2015-12-29 | 2016-06-01 | 深圳市奥拓电子股份有限公司 | Adaptive color adjusting method and system of LED display device |
| CN106531060A (en) * | 2016-11-16 | 2017-03-22 | 西安诺瓦电子科技有限公司 | Luminance correcting method and device for LED display device |
-
2020
- 2020-03-24 CN CN202010214665.8A patent/CN113450687A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004091223A1 (en) * | 2003-04-08 | 2004-10-21 | Olympus Corporation | Imaging system, image processing program |
| JP2013238793A (en) * | 2012-05-17 | 2013-11-28 | Mitsubishi Electric Corp | Video display device |
| CN104091566A (en) * | 2014-07-21 | 2014-10-08 | 西安诺瓦电子科技有限公司 | Display screen bright color degree adjustment method and LED display control method and system |
| CN105632398A (en) * | 2015-12-29 | 2016-06-01 | 深圳市奥拓电子股份有限公司 | Adaptive color adjusting method and system of LED display device |
| CN106531060A (en) * | 2016-11-16 | 2017-03-22 | 西安诺瓦电子科技有限公司 | Luminance correcting method and device for LED display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115311167A (en) * | 2022-08-24 | 2022-11-08 | 深圳新视光电科技有限公司 | Color gamut control method, device and equipment based on multicolor light and storage medium |
| CN115311167B (en) * | 2022-08-24 | 2023-04-04 | 深圳新视光电科技有限公司 | Color gamut control method, device and equipment based on multicolor light and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108376539B (en) | Image color compensation method and device | |
| CN109863549B (en) | Electronic device, display apparatus, and control method thereof | |
| CN111326099B (en) | Display correction method, device and system, storage medium and display system | |
| CN112669758B (en) | Display screen correction method, device, system and computer readable storage medium | |
| WO2015109775A1 (en) | Testing device and method, display device and display method | |
| CN104778920A (en) | Splicing bright and dark line compensating method of LED display screen | |
| CN113495709A (en) | Color correction method, AP chip, terminal and storage medium | |
| US11962917B2 (en) | Color adjustment method, color adjustment device, electronic device and computer-readable storage medium | |
| CN110277076B (en) | Color mapping method and device, display equipment and medium | |
| CN112598582A (en) | Image correction and correction data generation method, device and system and display method | |
| US10554862B2 (en) | System and method for retaining color gamut | |
| CN108574835B (en) | Method and device for correcting image colors in equipment screen | |
| CN113450687A (en) | Color management correction method, device and system | |
| US20060082686A1 (en) | Method and device for independent color management | |
| JP6429176B2 (en) | Image processing method and apparatus | |
| TW201427385A (en) | Adjusting method and display apparatus using same | |
| US20140314317A1 (en) | Method and apparatus for converting gray level of color image | |
| CN116453470B (en) | Image display method, device, electronic equipment and computer readable storage medium | |
| CN112053650A (en) | Multi-screen color correction method and electronic device thereof | |
| CN113099206A (en) | Image processing method, device, equipment and storage medium | |
| CN110809145B (en) | Image brightness conversion method, device and equipment based on Craik-O' Brien effect | |
| CN113870768B (en) | Display compensation method and device | |
| CN114286067A (en) | Projection equipment and image correction method | |
| CN108574836B (en) | Method and device for weakening saturation or pockmark phenomenon in image | |
| CN107256137B (en) | Picture processing method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |