CN112599073B - Display screen color management method, device and system - Google Patents
Display screen color management method, device and system Download PDFInfo
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- CN112599073B CN112599073B CN202010228870.XA CN202010228870A CN112599073B CN 112599073 B CN112599073 B CN 112599073B CN 202010228870 A CN202010228870 A CN 202010228870A CN 112599073 B CN112599073 B CN 112599073B
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- 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]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
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Abstract
The embodiment of the invention relates to a display screen color management method, device and system. The display screen color management method comprises the following steps: connecting a target display screen; reading the current color management state of the target display screen; and acquiring the on-off states of the multiple color gamut options of the target operation interface according to the current color management state, and displaying the on-off states of the multiple color gamut options. The embodiment of the invention can be realized by a software end which finishes color management based on the existing color management algorithm, and the color management technology is commercialized and applied to the market.
Description
Technical Field
The present invention relates to the field of color management technologies, and in particular, to a display screen color management method, a display screen color management apparatus, and a display screen color management system.
Background
The LED display screen is a flat panel display device consisting of an LED lamp point array, and is widely applied to various occasions of daily life along with the rapid development of the industry. The wide application and rapid development of the LED display screen are inseparable from the advantages of the LED display screen, which include: wide color gamut, high brightness, long service life, low power consumption, environment friendship, etc.
The color gamut refers to a color range area that can be displayed by a display device, such as an LED display screen, and researchers have proposed some color management algorithms that calculate and output color management data, such as color management coefficients and color gamut ratios, based on original color gamut information and target color gamut information.
Disclosure of Invention
Therefore, the embodiment of the present invention provides a display screen color management method, a display screen color management apparatus, and a display screen color management system.
On one hand, the color management method for the display screen provided by the embodiment of the invention comprises the following steps: connecting a target display screen; reading the current color management state of the target display screen; and acquiring the on-off states of the multiple color gamut options of the target operation interface according to the current color management state, and displaying the on-off states of the multiple color gamut options.
The color management method of the display screen can be realized by a software end which completes color management based on the existing color management algorithm, the color management technology is commercialized and is applied to the market, and a user can check the image display effect of a target display screen under a plurality of different color gamuts.
In an embodiment of the present invention, the display screen color management method further includes: and updating the selected states of the multiple color gamut options of the target operation interface in response to the operation of switching the selected color gamut option on the target operation interface by the user. In this way, the target display screen can be controlled to display the image by using the color gamut type corresponding to the selected color gamut option after switching as the target color gamut for color adjustment.
In an embodiment of the present invention, the display screen color management method further includes: detecting whether the target display screen supports color management; when the target display screen is detected to support color management, enabling a color management function to allow a user to operate the target operation interface; checking whether the target display screen is subjected to color management for the first time; when the target display screen is checked not to be subjected to color management for the first time, executing the reading of the current color management state of the target display screen; and when the target display screen is subjected to color management for the first time, uploading default color management data to the target display screen, and updating a color gamut option corresponding to the default color management data in the target operation interface into an on state, wherein the default color management data comprises a color gamut type and a corresponding color management coefficient.
In an embodiment of the present invention, the display screen color management method further includes: and responding to the triggering operation of a user, controlling the target display screen to solidify the color gamut type corresponding to the currently selected color gamut option of the target operation interface as a target color gamut for default color adjustment, and solidifying the color management coefficient corresponding to the color gamut type corresponding to the currently selected color gamut option as a default color management coefficient.
In an embodiment of the present invention, the display screen color management method further includes: importing the selected first color characterization file; decrypting the first color profile to obtain a decrypted color profile; analyzing the decrypted color characteristic description file to obtain a first color gamut type and a first color management coefficient corresponding to the first color gamut type; and uploading the first color gamut type and the first color management coefficient to the target display screen, and updating the on-off state of a color gamut option corresponding to the first color gamut type in the target operation interface.
In an embodiment of the present invention, the display screen color management method further includes: responding to a trigger operation to acquire selected information of at least one color gamut option on a second operation interface, wherein the at least one color gamut option corresponds to at least one target color gamut type; collecting original color gamut information of the target display screen; reading screen body configuration parameters of the target display screen; generating target color management data according to the original color gamut information, the screen body configuration parameters (such as a Gamma table) and the at least one target color gamut type, wherein the target color management data comprises color management coefficients and color gamut ratios corresponding to each target color gamut type in the at least one target color gamut type; and generating a color characterization file according to the target color management data.
In an embodiment of the present invention, the display screen color management method further includes: when the at least one color gamut option comprises a custom color gamut option, displaying a color gamut custom area; and responding to the operation that a user inputs custom color gamut information in the color gamut custom area, and generating one target color gamut type corresponding to the custom color gamut option in the at least one target color gamut type.
In an embodiment of the present invention, the acquiring the original color gamut information of the target display screen includes: connecting target brightness and chrominance measuring equipment and controlling the target display screen to display a plurality of different color images according to a preset sequence; and receiving brightness and chrominance data obtained by measuring the images of the plurality of different colors by the target brightness and chrominance measuring device so as to obtain the original color gamut information.
In an embodiment of the present invention, the display screen color management method further includes: responding to the trigger operation to import the selected second color characterization file in a third operation interface; analyzing the second color characterization file to obtain analysis result data and generating a color management briefing containing pictures and texts, wherein the analysis result data comprises at least one color gamut type and a color management coefficient corresponding to each color gamut type in the at least one color gamut type; responding to a user trigger operation, and transmitting the at least one color gamut type contained in the analysis result data and the color management coefficient corresponding to each color gamut type in the at least one color gamut type to the target display screen; updating the on-off states of a plurality of color gamut options of the third operation interface according to the at least one color gamut type contained in the analysis result data; and responding to the selected operation of the plurality of color gamut options of the third operation interface by the user, and switching the information presented by the color management brief.
In an embodiment of the present invention, the display screen color management method further includes: checking whether the target display screen is subjected to color management or not, and refreshing the on-off states of a plurality of color gamut options of a fourth operation interface when the target display screen is checked to be subjected to color management; connecting target brightness and chroma measuring equipment; generating a color block acquisition list; acquiring a plurality of color blocks of different colors in the color block acquisition list one by one to obtain a current acquisition color, and controlling the target display screen to display an image corresponding to the current acquisition color by using a color gamut type corresponding to a currently selected color gamut option in the plurality of color gamut options of the fourth operation interface as a target color gamut for color adjustment, so that the image is acquired by the target brightness and chrominance measurement device to obtain a brightness and chrominance measurement value; and calculating a difference value between the brightness and chrominance measured value and a brightness and chrominance theoretical value corresponding to the current collected color, and generating an evaluation result based on the brightness and chrominance measured value, the brightness and chrominance theoretical value and the difference value for outputting.
On the other hand, a display screen color management apparatus provided in an embodiment of the present invention includes: the connection module is used for connecting the target display screen; the reading module is used for reading the current color management state of the target display screen; and the display module is used for acquiring the on-off states of the multiple color gamut options of the target operation interface according to the current color management state and displaying the on-off states of the multiple color gamut options. In this way, the user can check the effect of the target display screen that displays the image by using the color gamut type corresponding to the selected color gamut option in the plurality of color gamut options of the target operation interface as the target color gamut for color adjustment.
In one embodiment of the present invention, the display screen color management apparatus further comprises: and the switching module is used for responding to the operation of switching the selected color gamut option on the target operation interface by the user and updating the selected state of the plurality of color gamut options of the target operation interface. In this way, the target display screen can be controlled to display the image by using the color gamut type corresponding to the selected color gamut option after switching as the target color gamut for color adjustment.
In one embodiment of the present invention, the display screen color management apparatus further comprises: the detection module is used for detecting whether the target display screen supports color management or not; the enabling module is used for enabling a color management function to allow a user to operate the target operation interface when the target display screen is detected to support color management; the checking module is used for checking whether the target display screen is subjected to color management for the first time; the uploading module is used for uploading default color management data to the target display screen when the target display screen is checked to be subjected to color management for the first time, wherein the default color management data comprises a color gamut type and a corresponding color management coefficient; the reading module is specifically used for reading the current color management state of the target display screen when the target display screen is checked not to be subjected to color management for the first time; and the display module is also used for updating the color gamut option corresponding to the default color management data in the target operation interface into an on state.
In one embodiment of the present invention, the display screen color management apparatus further comprises a curing module for: and responding to the triggering operation of a user, controlling the target display screen to solidify the color gamut type corresponding to the currently selected color gamut option of the target operation interface as a target color gamut for default color adjustment, and solidifying the color management coefficient corresponding to the color gamut type corresponding to the currently selected color gamut option as a default color management coefficient.
In an embodiment of the present invention, the display screen color management apparatus further includes an importing module, configured to: importing the selected first color characterization file; decrypting the first color profile to obtain a decrypted color profile; analyzing the decrypted color characteristic description file to obtain a first color gamut type and a first color management coefficient corresponding to the first color gamut type; and uploading the first color gamut type and the first color management coefficient to the target display screen, and updating the on-off state of a color gamut option corresponding to the first color gamut type in the target operation interface.
In an embodiment of the present invention, the display screen color management apparatus further includes a file creation module, configured to: responding to the selection information of at least one color gamut option selected in the second operation interface by triggering operation, wherein the at least one color gamut option corresponds to at least one target color gamut type; collecting original color gamut information of the target display screen; reading screen body configuration parameters of the target display screen; generating target color management data according to the original color gamut information, the screen body configuration parameters and the at least one target color gamut type, wherein the target color management data comprises a color management coefficient and a color gamut ratio corresponding to each target color gamut type in the at least one target color gamut type; and generating a color characterization file according to the target color management data.
In an embodiment of the present invention, the display screen color management apparatus further includes a file management module, configured to: responding to the trigger operation to import the selected second color characterization file in a third operation interface; analyzing the second color characterization file to obtain analysis result data and generating a color management briefing containing pictures and texts, wherein the analysis result data comprises at least one color gamut type and a color management coefficient corresponding to each color gamut type in the at least one color gamut type; responding to a user trigger operation, and transmitting the at least one color gamut type contained in the analysis result data and the color management coefficient corresponding to each color gamut type in the at least one color gamut type to the target display screen; updating the on-off states of a plurality of color gamut options of the third operation interface according to the at least one color gamut type contained in the analysis result data; and responding to the selected operation of the plurality of color gamut options of the third operation interface by the user, and switching the information presented by the color management brief.
In an embodiment of the present invention, the display screen color management apparatus further includes an evaluation and reporting module, configured to: checking whether the target display screen is subjected to color management or not, and refreshing the on-off states of a plurality of color gamut options of a fourth operation interface when the target display screen is checked to be subjected to color management (namely, color management is not performed for the first time); connecting target brightness and chroma measuring equipment; generating a color block acquisition list; acquiring a plurality of color blocks of different colors in the color block acquisition list one by one to obtain a current acquisition color, and controlling the target display screen to display an image corresponding to the current acquisition color by using a color gamut type corresponding to a currently selected color gamut option in the plurality of color gamut options of the fourth operation interface as a target color gamut for color adjustment, so that the image is acquired by the target brightness and chrominance measurement device to obtain a brightness and chrominance measurement value; and calculating a difference value between the brightness and chrominance measured value and a brightness and chrominance theoretical value corresponding to the current collected color, and generating an evaluation result based on the brightness and chrominance measured value, the brightness and chrominance theoretical value and the difference value for outputting.
In another aspect, a display screen color management system provided by an embodiment of the present invention includes: 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 the display screen color management method of any of the preceding embodiments.
As can be seen from the above, the above technical features of the present invention may have one or more of the following advantages: the display screen color management method, device and system of the embodiment can be realized by a software end which completes color management based on the existing color management algorithm, the color management technology is commercialized and is applied to the market, and a user can check the image display effect of a target display screen under a plurality of different color gamuts and can solidify the color management effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart illustrating a color management method for a display screen according to a first embodiment of the present invention.
Fig. 2 is a flowchart illustrating a color management method for a display screen according to a second embodiment of the present invention.
Fig. 3A is a flowchart illustrating a color management method for a display screen according to a third embodiment of the present invention.
Fig. 3B is a partial screenshot of the target operation interface in this embodiment.
Fig. 4 is a flowchart illustrating a color management method for a display screen according to a fourth embodiment of the present invention.
Fig. 5 is a flowchart illustrating a color management method for a display screen according to a fifth embodiment of the present invention.
Fig. 6A is a flowchart illustrating a display screen color management method according to a sixth embodiment of the present invention.
Fig. 6B, 6C, and 6D are partial screenshots of three different states of the second operation interface of the present embodiment.
Fig. 7A is a flowchart illustrating a display screen color management method according to a seventh embodiment of the present invention.
Fig. 7B is a partial screenshot of a third operation interface of the present embodiment.
Fig. 8A is a flowchart illustrating an eighth embodiment of a color management method for a display screen according to the first embodiment of the present invention.
Fig. 8B is a partial screenshot of a fourth operation interface of the present embodiment.
Fig. 9 is a flowchart illustrating a color management apparatus for a display screen according to a second embodiment of the present invention.
Fig. 10 is a flowchart illustrating a second embodiment of a display screen color management apparatus according to a second embodiment of the present invention.
Fig. 11 is a flowchart illustrating a third embodiment of a display screen color management apparatus according to a second embodiment of the present invention.
Fig. 12 is a flowchart illustrating a fourth embodiment of a display screen color management apparatus according to a second embodiment of the present invention.
Fig. 13 is a flowchart illustrating a fifth embodiment of a display screen color management apparatus according to a second embodiment of the present invention.
Fig. 14 is a flowchart illustrating a display screen color management apparatus according to a sixth embodiment of the present invention.
Fig. 15 is a flowchart illustrating a display screen color management apparatus according to a seventh embodiment of the present invention.
Fig. 16 is a flowchart illustrating an eighth embodiment of a display screen color management apparatus according to a second embodiment of the present invention.
Fig. 17 is a schematic structural diagram of a color management system of a display screen according to a third embodiment of the present invention.
Fig. 18 is a schematic structural diagram of a computer-readable storage medium according to a fourth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
[ first embodiment ] A method for manufacturing a semiconductor device
As shown in fig. 1, a method for managing colors of a display screen according to a first embodiment of the present invention includes the steps of:
s11: connecting a target display screen;
s13: reading the current color management state of the target display screen;
s15: and acquiring the on-off states of the multiple color gamut options of the target operation interface according to the current color management state, and displaying the on-off states of the multiple color gamut options. In this way, the user can check the effect of the target display screen that displays the image by using the color gamut type corresponding to the selected color gamut option in the plurality of color gamut options of the target operation interface as the target color gamut for color adjustment.
Further, as shown in fig. 2, the method for managing colors of a display screen of this embodiment further includes, for example, the steps of:
s17: and updating the selected states of the multiple color gamut options of the target operation interface in response to the operation of switching the selected color gamut option on the target operation interface by the user. In this way, the target display screen can be controlled to display the image by using the color gamut type corresponding to the selected color gamut option after switching as the target color gamut for color adjustment.
In order to more clearly understand the color management method of the display panel of the present embodiment, the following description will be made in detail by way of example with reference to fig. 3A and 3B.
Specifically, the color management method of the display screen of the embodiment is executed by an upper computer installed with color management software of the display screen, for example, and can perform color management on the LED display screen. The LED display screen includes, for example, a system controller, at least one module controller and an LED screen body, which are connected in sequence, where the system controller is, for example, a sending card, where the module controller is, for example, a receiving card (or a scanning card, which may be a single circuit board structure or a multi-circuit board structure including a core board and a bottom board) and is electrically connected to the sending card through, for example, a network cable, and where the LED screen body includes, for example, one or more LED lamp panels with LED lamp points as display pixels, and each LED lamp panel is connected to a corresponding module controller. Furthermore, the software communication service module used for the display screen color management software of the embodiment to communicate with the hardware service layer, for example, adopts a win32 event mechanism, which includes two classes, such as HardwareService and HardwareServiceWindow. The HardwareServer class is an external interface class of the communication service, and an API provided by the external module is used when the external module calls the communication service; the hardwarervicewindow class is a communication service Win32 event transceiving and processing class, and is a core function implementation class, and comprises sending of Win32 messages and analysis of data such as command execution results and data packets returned by a hardware service layer. The HardwareServer and the HardwareServiceWindow use a Qt signal and a slot mechanism to carry out internal communication, the HardwareServer uses the Qt signal to return a command execution result and data returned by hardware to an external calling module, and communication commands related in the communication process comprise: setting screen body color, uploading, solidifying, switching color gamut, turning on/off correction, obtaining screen body information, obtaining color management state, obtaining Gamma table and other commands.
As described above, the user starts the display screen color management software to initialize, and the display screen color management software establishes a communication connection with a target display screen, such as an LED display screen, for example, through a communication interface of the upper computer, such as a serial port, a USB port, or a network port (step S11). After connecting to the target display screen, for example, as shown in fig. 3A, it may be detected whether the target display screen supports color management (step S12a), for example, by detecting a software version on a module controller of the LED display screen to know whether color management is supported; if the target display screen does not support color management, jumping to the ending step; on the contrary, if the target display screen supports color management, the color management function is enabled to allow the user to operate the target operation interface (step S12B), for example, the [ smart management mode ] option shown in fig. 3B is in an on state (or enabled state), so that the user can click the option to enter the [ smart management mode ] interface for relevant operation.
Next, checking whether the target display screen is color-managed for the first time (step S12c), for example, checking a flag bit on a module controller of the LED display screen to determine whether color management is performed; if it is checked that color management is not performed for the first time, reading a current color management state of the target display screen (step S13), where the current color management state includes, for example, color gamut type information already performed by the target display screen and target color gamut information for current default color adjustment; and then updating the switch states of the multiple color gamut options of the [ intelligent management mode ] interface (corresponding to the target operation interface) according to the current color management state, so that the user can check the effect of image display on the target display screen by taking the color gamut type corresponding to any selected color gamut option of the [ intelligent management mode ] interface as the target color gamut for color adjustment (step S15). Taking fig. 3B as an example, assuming that it is checked that the target display screen has undergone color adjustment in the bt.709, bt.2020, and DCI-P3 color gamuts, the bt.709 option, the bt.2020 option, and the DCI-P3 option in the [ intelligent management mode ] interface are all updated to the on state, so that the user can select any one of the color gamut options to view the on-screen effect of color management of the target display screen in each color gamut; it can be understood that assuming that the target display screen only performs color adjustment in bt.709 and bt.2020 color gamuts, the DCI-P3 option in the interface will be in an off state (i.e., disabled state). Furthermore, when the current default color adjustment target color gamut of the target display screen is bt.709 by reading the current color management state, the bt.709 option is automatically in the selected state as shown in fig. 3B, and the image display effect presented on the target display screen takes bt.709 as the display effect of the color adjustment target color gamut.
On the contrary, if it is checked that color management is performed for the first time, default color management data is automatically uploaded to the target display screen, and a color gamut option corresponding to the default color management data in the [ intelligent management mode ] interface is updated to an on state, wherein the default color management data includes a color gamut type and a corresponding color management coefficient (step S16). The gamut types contained in the color management data herein may be a plurality of commonly used standard gamuts such as bt.709, bt.2020, DCI-P3, etc.
It should be noted that, the steps performed in the initialization process can be appropriately reduced, for example, after step S11, step S13 can be directly performed to read the current color management status of the target display screen without performing steps S12a to S12 c; accordingly, in step S13, if the gamut type information (which indicates that the target display screen is not color-managed for the first time, i.e., has been color-managed) can be acquired, step S15 is continuously performed, whereas if the gamut type information (which indicates that the target display screen is color-managed for the first time, i.e., has not been color-managed) is not acquired, step S17 is performed.
As described above, after the initialization is finished, the user may switch the selected color gamut option in the [ smart management mode ] interface shown in fig. 3B, for example, switch from the currently displayed selected bt.709 option to the selected bt.2020 option, and then the software may control the target display screen to perform image display by using the color gamut type bt.2020 corresponding to the switched bt.2020 option as the target color gamut for color adjustment, so that the user may view the on-screen effect of the color management of the target display screen under the color gamut type bt.2020 (step S17).
In addition, after the user views the on-screen effect of the color management of the target display screen under each color gamut, the on-screen effect of the color management of the target display screen under the color gamut bt.709 is considered to meet the requirement, then the [ cure ] button may be clicked when the bt.709 option is in the selected state in the [ intelligent management mode ] interface, for example, as shown in fig. 4, the software may respond to the user trigger operation to control the target display screen to cure the color gamut type bt.709 corresponding to the currently selected bt.709 option of the [ intelligent management mode ] interface as the target color gamut for default color adjustment, and cure the color management coefficient corresponding to the color gamut type bt.709 corresponding to the currently selected bt.709 option as the default color management coefficient (step S19). The solidification here means that the default color management coefficient is automatically called to perform color adjustment when the target display screen is started up after being shut down or image display is performed after being restarted. Of course, besides the currently selected color gamut option, the color management coefficients corresponding to other color gamut options may also be fixed, that is, saved in the non-volatile memory of the target display screen.
In addition, when the user needs to check the on-screen effect of Color management of the target display screen in more Color gamuts, the [ import NICC file ] button in the [ intelligent management mode ] interface shown in fig. 3B may be clicked, the software jumps out of the session box for the user to select the first Color Profile (Color Profile file) to be imported, and when the user selects the file to be imported, as shown in fig. 5, the software may sequentially execute: importing a selected first color profile (step S51), decrypting the first color profile to obtain a decrypted color profile (step S53), parsing the decrypted color profile to obtain a first color gamut type and first color management coefficients corresponding to the first color gamut type (step S55), and uploading the first color gamut type and the first color management coefficients to a target display screen and updating on-off states of color gamut options (typically, a plurality of color gamut options) corresponding to the first color gamut type in a [ smart management mode ] interface (step S57). The first gamut type here may be a standard gamut type, a custom gamut type, or a combination of both.
When the user needs to create the color profile, the [ create and evaluate ] button in the [ intelligent management mode ] interface shown in fig. 3B may be clicked to enter a second operation interface, for example, the [ create nicac file ] interface shown in fig. 6B. In order to create a desired color profile (e.g., NICC file), steps S61-67 shown in FIG. 6A may be performed in sequence. Specifically, at least one color gamut option is selected in the interface of [ create NICC file ], where the at least one color gamut option corresponds to at least one target color gamut type (step S61), for example, in fig. 6B, five color gamut options are selected, such as [ bt.709 ], [ bt.2020 ], [ DCI-P3 ], [ led.709 ], and [ led.2020 ], which correspond to five target color gamut types, such as bt.709, bt.2020, DCI-P3, led.709, and led.202, respectively; in addition, as shown in fig. 6C, when the [ custom ] color gamut option is selected in the [ create NICC file ] interface, the right side of the [ create NICC file ] interface expands a color gamut customization area for the user to input custom color gamut information. Then, collecting original color gamut information of the target display screen (step S63); specifically, there are two raw color gamut acquisition modes in the interface [ create NICC document ], one is automatic measurement and the other is manual measurement. If the user selects the option [ automatic measurement ], after the target brightness and chrominance measuring device such as a colorimeter is connected through a designated port (such as a USB), the target display screen can be controlled to display images of multiple different colors such as red, green, blue and white images in a preset sequence, the target brightness and chrominance measuring device measures the images of the multiple different colors to obtain brightness and chrominance data, and the software receives the brightness and chrominance data measured by the target brightness and chrominance measuring device as original color gamut information. If the user clicks the option of [ manual measurement ], as shown in fig. 6D, the user may control the target display screen to perform corresponding color image display by clicking four color measurement buttons of red, green, blue, white, and the like in the interface of [ creation NICC file ], so as to obtain the luminance and chrominance data corresponding to each color, and manually input the obtained luminance and chrominance data into the table of the interface of [ creation NICC file ] shown in fig. 6D.
After acquiring the original color gamut information and reading the screen body configuration parameters of the target display screen (step S65), the software may generate target color management data according to the original color gamut information, the screen body configuration parameters, and the at least one target color gamut type, where the target color management data includes a color management coefficient and a color gamut ratio corresponding to each target color gamut type in the at least one target color gamut type (step S67). More specifically, the screen configuration parameters read in step S65 include, for example, Gamma table, brightness, current gain, and other data, and accordingly, in step S67, the software may cyclically invoke a color management algorithm (such as an existing mature color management algorithm) to calculate color management coefficients and color gamut fractions of each target color gamut according to the original color gamut information, the Gamma table in the screen configuration parameters, and a plurality of target color gamut types, such as bt.709, bt.2020, DCI-P3, led.709, and led.2020 in fig. 6B, of the at least one target color gamut type.
Thereafter, the software may generate a color profile from the target color management data generated at step S67 (step S69). The generated color profile can be output to a designated NICC file storage path, or even the file data can be encrypted before being output.
When the user needs to manage the existing color profile, the user may enter a third operation interface in response to the user trigger operation, for example, enter an interface [ manage NICC file ] shown in fig. 7B. Specifically, as shown in fig. 7A, after the [ management NICC file ] interface imports the selected second color profile (step S71), the software continues parsing the second color profile to obtain parsing result data and generate a color management briefing including an image and text, wherein the parsing result data includes at least one color gamut type and a color management coefficient corresponding to each color gamut type in the at least one color gamut type (step S73). When the user clicks an upload button in an interface of a manage NICC file, the user transmits the at least one color gamut type included in the parsing result data and the color management coefficient corresponding to each of the at least one color gamut type to a target display screen through the trigger software (step S75). Furthermore, the software updates the switching state of each gamut option in the interface [ manage NICC file ] according to the at least one gamut type contained in the parsing result data (step S77), for example, six gamut options such as bt.709, bt.2020, DCI-P3, led.709, led.2020, and custom [ effect view ] are all updated to be in the on state (even if the on state is enabled).
In addition, in the interface of managing NICC files, a user can check the on-screen effect and the brief report of color management under the corresponding color gamut by switching the color gamut options under the effect check; that is, the software may switch the information presented by the color management bulletin in response to the user' S selection of the various color gamut options of the [ manage NICC file ] interface (step S79).
In addition, when the user needs to evaluate the color management effect of the target display screen in each color gamut and output a report, the user may enter a fourth operation interface in response to a user trigger operation, for example, enter an [ evaluation & report ] interface shown in fig. 8B. Specifically, as shown in fig. 8A, after entering the [ evaluation & report ] interface, the software checks whether the target display screen has undergone color management, and refreshes the on-off states of the color gamut options of the [ evaluation & report ] interface when it is checked that the target display screen has undergone color management (step S81); then, after a target luminance and chrominance measuring device such as a colorimeter is connected through a designated port (such as a USB), clicking a [ start evaluation ] button can evaluate the color management effect of the target display screen under the color gamut type corresponding to the selected color gamut option, specifically: a color block collection list is generated (step S85), a plurality of color blocks with different colors in the color block collection list are obtained one by one to obtain a current collection color, and a target display screen is controlled to display an image corresponding to the current collection color as a color adjustment target color gamut corresponding to the color gamut of the currently selected color gamut option in each color gamut option of an [ evaluation & report ] interface for a colorimeter to obtain a brightness measurement value (step S87). The color block collection list here includes, for example, different color blocks in the standard color field in the interface [ evaluation & report ] shown in fig. 8B, and the RGB value corresponding to each color block may be converted into a luminance theoretical value corresponding to the color gamut type corresponding to the selected color gamut option. In addition, the software can also control the target display screen to display the image corresponding to the currently acquired color for the color meter to acquire in a state that the color gamut type corresponding to the currently selected color gamut option in the color gamut options of the [ evaluation & report ] interface is closed and is used as the target color gamut for color adjustment.
Thereafter, the software calculates the difference (e.g., DeltaE shown in fig. 8B) between the luminance-degree measurement value (e.g., [ measured value (Lxy) ] shown in fig. 8B) and a luminance-degree theoretical value (e.g., [ CIE31(Lxy) ] shown in fig. 8B) corresponding to the currently captured color, and generates an evaluation result based on the luminance-degree measurement value, the luminance-degree theoretical value, and the difference for output (step S89).
In summary, the color management method for the display screen according to the embodiment can be implemented by a software end that completes color management based on an existing color management algorithm, and the color management technology is commercialized and applied to the market, so that a user can check the image display effect of a target display screen in a plurality of different color gamuts and can solidify the color management effect. Furthermore, it should be noted that the interface contents presented in fig. 3B, fig. 6B to 6D, fig. 7B and fig. 8B are only schematic examples, and are not intended to limit the target operation interface, the second operation interface, the third operation interface and the fourth operation interface mentioned in the foregoing embodiments of the present invention.
[ second embodiment ]
As shown in fig. 9, a display screen color management apparatus 90 according to a second embodiment of the present invention includes: a connection module 91, a reading module 93 and a display module 94.
Wherein, the connection module 91 is used for connecting a target display screen; the reading module 93 is, for example, configured to read a current color management state of the target display screen; the display module 94 is configured to, for example, obtain the on-off states of the multiple color gamut options of the target operation interface according to the current color management state, and display the on-off states of the multiple color gamut options. In this way, the user can check the effect of the target display screen that displays the image by using the color gamut type corresponding to the selected color gamut option in the plurality of color gamut options of the target operation interface as the target color gamut for color adjustment.
For the specific functional details of the connection module 91, the reading module 93 and the display module 94, reference may be made to the detailed description in the foregoing first embodiment, and further description is omitted here. Further, it is noted that the connection module 91, the reading module 93 and the display module 94 may be software modules, stored in a non-volatile memory and executed by a processor to perform the operations of steps S11, S13 and S15 in the first embodiment.
Referring to fig. 10, in a specific embodiment, the display screen color management apparatus of this embodiment further includes: a switching module 95. The switching module 95 is, for example, configured to update the selected state of the multiple color gamut options of the target operation interface in response to an operation of a user switching the selected color gamut option in the target operation interface. In this way, the target display screen can be controlled to display the image by using the color gamut type corresponding to the selected color gamut option after switching as the target color gamut for color adjustment. For the details of the function of the switching module 95, reference may be made to the detailed description of the first embodiment, which is not repeated herein. It should be noted that the switching module 95 may be a software module, which is stored in the non-volatile memory and is executed by the processor to perform the operation of step S17 in the first embodiment.
Referring to fig. 11, in a specific embodiment, the display screen color management apparatus of this embodiment further includes: a detection module 92a, an enabling module 92b, a checking module 92c, and an uploading module 92 d. Wherein the detecting module 92a is used for detecting whether the target display screen supports color management; the enabling module 92b is, for example, configured to enable a color management function to allow a user to operate the target operation interface when it is detected that the target display screen supports color management; the checking module 92c is, for example, configured to check whether the target display screen is color-managed for the first time; and the upload module 92d is configured to, for example, upload default color management data to the target display screen when it is checked that the color management is performed for the first time on the target display screen, where the default color management data includes a color gamut type and a corresponding color management coefficient. In addition, the reading module 93 is specifically configured to, for example, read the current color management state of the target display screen when it is checked that the color management is not performed for the first time on the target display screen; the display module 94 is further configured to update the color gamut option corresponding to the default color management data in the target operation interface to an on state, for example. For the specific functional details of the detecting module 92a, the enabling module 92b, the checking module 92c, the uploading module 92d, the reading module 93 and the displaying module 94, reference may be made to the detailed description in the foregoing first embodiment, which is not repeated herein. It should be noted that the detecting module 92a, the enabling module 92b, the checking module 92c, the uploading module 92d, the reading module 93 and the displaying module 94 may be software modules stored in the non-volatile memory and executed by the processor to perform the steps S12a, S12b, S12c, S16, S13 and S15 in the first embodiment.
Referring to fig. 12, in a specific embodiment, the display screen color management apparatus of this embodiment further includes: and curing the module 96. The solidifying module 96 is, for example, configured to respond to a user trigger operation, control the target display screen to solidify, as a default color adjustment target color gamut, a color gamut type corresponding to a currently selected color gamut option of the target operation interface, and solidify, as a default color management coefficient, a color management coefficient corresponding to the color gamut type corresponding to the currently selected color gamut option. For the details of the function of the curing module 96, reference may be made to the detailed description of the first embodiment, which is not repeated herein. Furthermore, it should be noted that the solidifying module 96 may be a software module, which is stored in the non-volatile memory and is executed by the processor to perform the operation of step S19 in the first embodiment.
Referring to fig. 13, in a specific embodiment, the display screen color management apparatus of this embodiment further includes: and a module 97 is introduced. The import module 97 is, for example, configured to: importing the selected first color characterization file; decrypting the first color profile to obtain a decrypted color profile; analyzing the decrypted color characteristic description file to obtain a first color gamut type and a first color management coefficient corresponding to the first color gamut type; and uploading the first color gamut type and the first color management coefficient to the target display screen, and updating the on-off state of a color gamut option corresponding to the first color gamut type in the target operation interface. For the details of the functions of the import module 97, reference may be made to the detailed description of the first embodiment, which is not repeated herein. It should be noted that the import module 97 can be a software module, which is stored in the non-volatile memory and is executed by the processor to perform the operations of steps S51, S53, S55 and S57 in the first embodiment.
Referring to fig. 14, in a specific embodiment, the display screen color management apparatus of this embodiment further includes: file creation module 98 a. Wherein the file creation module 98a is configured to: responding to a trigger operation to acquire selected information of at least one color gamut option on a second operation interface, wherein the at least one color gamut option corresponds to at least one target color gamut type; collecting original color gamut information of the target display screen; reading screen body configuration parameters of the target display screen; generating target color management data according to the original color gamut information, the screen body configuration parameters and the at least one target color gamut type, wherein the target color management data comprises a color management coefficient and a color gamut ratio corresponding to each target color gamut type in the at least one target color gamut type; and generating a color characterization file according to the target color management data. For the details of the functions of the file creating module 98a, reference may be made to the detailed description of the first embodiment, which is not repeated herein. Further, it is noted that the file creating module 98a may be a software module stored in the non-volatile memory and executed by the processor to perform the steps S61, S63, S65, S67 and S69 in the first embodiment.
Referring to fig. 15, in a specific embodiment, the display screen color management apparatus of this embodiment further includes: file management module 98 b. The file management module 98b is configured to: responding to the trigger operation to import the selected second color characterization file in a third operation interface; analyzing the second color characterization file to obtain analysis result data and generating a color management briefing containing pictures and texts, wherein the analysis result data comprises at least one color gamut type and a color management coefficient corresponding to each color gamut type in the at least one color gamut type; responding to a user trigger operation, and transmitting the at least one color gamut type contained in the analysis result data and the color management coefficient corresponding to each color gamut type in the at least one color gamut type to the target display screen; updating the on-off states of a plurality of color gamut options of the third operation interface according to the at least one color gamut type contained in the analysis result data; and responding to the selected operation of the plurality of color gamut options of the third operation interface by the user, and switching the information presented by the color management brief. For the details of the functions of the file management module 98b, reference may be made to the detailed description of the first embodiment, which is not repeated herein. It should be noted that the file management module 98b may be a software module stored in the non-volatile memory and executed by the processor to perform the steps S71, S73, S75, S77 and S79 in the first embodiment.
Referring to fig. 16, in a specific embodiment, the display screen color management apparatus of this embodiment further includes: an evaluation and reporting module 98 c. Wherein the evaluation and reporting module 98c is for example used to: checking whether the target display screen is subjected to color management for the first time, and refreshing the on-off states of a plurality of color gamut options of a fourth operation interface when the target display screen is checked not to be subjected to color management for the first time; connecting target brightness and chroma measuring equipment; generating a color block acquisition list; acquiring a plurality of color blocks of different colors in the color block acquisition list one by one to obtain a current acquisition color, and controlling the target display screen to display an image corresponding to the current acquisition color by using a color gamut type corresponding to a currently selected color gamut option in the plurality of color gamut options of the fourth operation interface as a target color gamut for color adjustment, so that the image is acquired by the target brightness and chrominance measurement device to obtain a brightness and chrominance measurement value; and calculating a difference value between the brightness and chrominance measured value and a brightness and chrominance theoretical value corresponding to the current collected color, and generating an evaluation result based on the brightness and chrominance measured value, the brightness and chrominance theoretical value and the difference value for outputting. For the details of the functions of the evaluation and reporting module 98c, reference is made to the detailed description of the first embodiment, which is not repeated herein. It should be noted that the evaluation and reporting module 98c may be a software module stored in the non-volatile memory and executed by the processor to perform the operations of steps S81, S83, S85, S87 and S89 in the first embodiment.
[ third embodiment ]
As shown in fig. 17, a display screen color management system 170 according to a third embodiment of the present invention includes: a processor 171 and a memory 173; the memory 173 stores instructions executed by the processor 171, and the instructions cause the processor 91 to perform operations to perform the display screen color management method according to the first embodiment.
[ fourth example ] A
As shown in fig. 18, a computer-readable storage medium 180 according to a fourth embodiment of the present invention is a non-volatile memory and stores program codes, which, when executed by one or more processors, for example, cause the one or more processors to execute the display color management method according to the first embodiment.
In addition, it should be understood that the foregoing embodiments are merely exemplary illustrations of the present invention, and technical solutions of the embodiments can be arbitrarily combined and used without conflict between technical features and structures, and without departing from the purpose of the present invention.
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 apparatus embodiments are merely illustrative, and for example, the division of the units/modules is only one logical division, and there may be other divisions in actual implementation, for example, multiple units or modules 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/modules described as separate parts may or may not be physically separate, and parts displayed as units/modules 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/modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, each functional unit/module in the embodiments of the present invention may be integrated into one processing unit/module, or each unit/module may exist alone physically, or two or more units/modules may be integrated into one unit/module. The integrated units/modules may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units/modules.
The integrated units/modules, which are implemented in the form of software functional units/modules, may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing one or more processors of a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (13)
1. A display screen color management method is characterized by comprising the following steps:
connecting a target display screen;
reading the current color management state of the target display screen;
acquiring the on-off states of a plurality of color gamut options of a target operation interface according to the current color management state, and displaying the on-off states of the plurality of color gamut options;
the current color management state comprises color gamut type information which is already done by the target display screen and target color gamut information for current default color adjustment.
2. The display screen color management method of claim 1, further comprising:
and updating the selected states of the multiple color gamut options of the target operation interface in response to the operation of switching the selected color gamut option on the target operation interface by the user.
3. A display screen color management method according to claim 1 or 2, further comprising:
detecting whether the target display screen supports color management;
when the target display screen is detected to support color management, enabling a color management function to allow a user to operate the target operation interface;
checking whether the target display screen is subjected to color management for the first time;
when the target display screen is checked not to be subjected to color management for the first time, executing the reading of the current color management state of the target display screen;
when the target display screen is checked to be subjected to color management for the first time, uploading default color management data to the target display screen, and updating a color gamut option corresponding to the default color management data in the target operation interface to be in an on state, wherein the default color management data comprises a color gamut type and a corresponding color management coefficient.
4. The display screen color management method of claim 2, further comprising:
and responding to the triggering operation of a user, controlling the target display screen to solidify the color gamut type corresponding to the currently selected color gamut option of the target operation interface as a target color gamut for default color adjustment, and solidifying the color management coefficient corresponding to the color gamut type corresponding to the currently selected color gamut option as a default color management coefficient.
5. A display screen color management method according to claim 1 or 2, further comprising:
importing the selected first color characterization file;
decrypting the first color profile to obtain a decrypted color profile;
analyzing the decrypted color characteristic description file to obtain a first color gamut type and a first color management coefficient corresponding to the first color gamut type;
uploading the first color gamut type and the first color management coefficient to the target display screen, and updating the on-off state of a color gamut option corresponding to the first color gamut type in the target operation interface.
6. A display screen color management method according to claim 1 or 2, further comprising:
responding to a trigger operation to acquire selected information of at least one color gamut option on a second operation interface, wherein the at least one color gamut option corresponds to at least one target color gamut type;
collecting original color gamut information of the target display screen;
reading screen body configuration parameters of the target display screen;
generating target color management data according to the original color gamut information, the screen body configuration parameters and the at least one target color gamut type, wherein the target color management data comprises a color management coefficient and a color gamut ratio corresponding to each target color gamut type in the at least one target color gamut type;
and generating a color characteristic description file according to the target color management data.
7. The display screen color management method of claim 6, further comprising:
when the at least one color gamut option comprises a custom color gamut option, displaying a color gamut custom area;
and responding to the operation that a user inputs custom color gamut information in the color gamut custom area, and generating one target color gamut type corresponding to the custom color gamut option in the at least one target color gamut type.
8. A display screen color management method according to claim 1 or 2, further comprising:
responding to the trigger operation to import the selected second color characterization file in a third operation interface;
analyzing the second color characterization file to obtain analysis result data and generating a color management briefing containing pictures and texts, wherein the analysis result data comprises at least one color gamut type and a color management coefficient corresponding to each color gamut type in the at least one color gamut type;
responding to a user trigger operation, and transmitting the at least one color gamut type contained in the analysis result data and the color management coefficient corresponding to each color gamut type in the at least one color gamut type to the target display screen;
updating the on-off states of a plurality of color gamut options of the third operation interface according to the at least one color gamut type contained in the analysis result data;
and responding to the selected operation of the plurality of color gamut options of the third operation interface by the user, and switching the information presented by the color management brief.
9. The display screen color management method of claim 1, further comprising:
checking whether the target display screen is subjected to color management for the first time, and refreshing the on-off states of a plurality of color gamut options of a fourth operation interface when the target display screen is checked not to be subjected to color management for the first time;
connecting target brightness and chroma measuring equipment;
generating a color block acquisition list;
acquiring a plurality of color blocks of different colors in the color block acquisition list one by one to obtain a current acquisition color, and controlling the target display screen to display an image corresponding to the current acquisition color by using a color gamut type corresponding to a currently selected color gamut option in the plurality of color gamut options of the fourth operation interface as a target color gamut for color adjustment, so that the image is acquired by the target brightness and chrominance measurement device to obtain a brightness and chrominance measurement value;
and calculating a difference value between the brightness and chrominance measured value and a brightness and chrominance theoretical value corresponding to the current collected color, and generating an evaluation result based on the brightness and chrominance measured value, the brightness and chrominance theoretical value and the difference value for outputting.
10. A display screen color management apparatus, comprising:
the connection module is used for connecting the target display screen;
the reading module is used for reading the current color management state of the target display screen;
the display module is used for acquiring the on-off states of a plurality of color gamut options of a target operation interface according to the current color management state and displaying the on-off states of the plurality of color gamut options;
the current color management state comprises color gamut type information which is already done by the target display screen and target color gamut information for current default color adjustment.
11. The display screen color management apparatus of claim 10, further comprising:
the detection module is used for detecting whether the target display screen supports color management or not;
the enabling module is used for enabling a color management function to allow a user to operate the target operation interface when the target display screen is detected to support color management;
the checking module is used for checking whether the target display screen is subjected to color management for the first time;
the uploading module is used for uploading default color management data to the target display screen when the target display screen is checked to be subjected to color management for the first time, wherein the default color management data comprises a color gamut type and a corresponding color management coefficient;
the reading module is specifically used for reading the current color management state of the target display screen when the target display screen is checked not to be subjected to color management for the first time;
the display module is further configured to update a color gamut option corresponding to the default color management data in the target operation interface to an on state.
12. The display screen color management apparatus of claim 10 or 11, further comprising an evaluation and reporting module for:
checking whether the target display screen is subjected to color management for the first time, and refreshing the on-off states of a plurality of color gamut options of a fourth operation interface when the target display screen is checked not to be subjected to color management for the first time;
connecting target brightness and chroma measuring equipment;
generating a color block acquisition list;
acquiring a plurality of color blocks of different colors in the color block acquisition list one by one to obtain a current acquisition color, and controlling the target display screen to display an image corresponding to the current acquisition color by using a color gamut type corresponding to a currently selected color gamut option in the plurality of color gamut options of the fourth operation interface as a target color gamut for color adjustment, so that the image is acquired by the target brightness and chrominance measurement device to obtain a brightness and chrominance measurement value;
and calculating a difference value between the brightness and chrominance measured value and a brightness and chrominance theoretical value corresponding to the current collected color, and generating an evaluation result based on the brightness and chrominance measured value, the brightness and chrominance theoretical value and the difference value for outputting.
13. A display screen color management 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 display screen color management method of any of claims 1-9.
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| CN107068114B (en) * | 2017-04-24 | 2019-04-30 | 北京小米移动软件有限公司 | Screen color method of adjustment, device, equipment and storage medium |
| CN107343187B (en) * | 2017-07-24 | 2021-08-24 | 深圳Tcl新技术有限公司 | Color gamut mapping method, display terminal and computer-readable storage medium |
| CN107786864B (en) * | 2017-11-07 | 2020-03-17 | 深圳Tcl数字技术有限公司 | Television picture display method, equipment and readable storage medium |
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