Screen grayscale adjustment method, device, equipment and storage medium

Abstract

The present application provides a screen grayscale adjustment method, device, equipment and storage medium, which relates to the technical field of display screens and can effectively adjust the gray screen display effect of the spliced ​​screen to be consistent. The spliced ​​screen can be an LCD spliced ​​screen or an LED spliced ​​screen. The method includes: the first display displays a gray pure color picture; the first display is any display in the spliced ​​screen; the first display determines the target grayscale sub-interval to which the grayscale value of the gray pure color picture belongs; the grayscale value of the gray pure color picture is in any grayscale sub-interval among N preset grayscale sub-intervals; the first display receives the target red, green and blue RGB parameters input by the user, and the target RGB parameters are in the target grayscale sub-interval; the first display takes effect on the target RGB parameters and displays the target gray pure color picture. The present application can be used in the process of screen grayscale adjustment.

Description

Technical Field

[0001] The present application relates to the technical field of display screens, and in particular to a screen grayscale adjustment method, device, equipment and storage medium. Background Art

[0002] With the development of display technology and image processing technology, the application of displays is becoming more and more extensive. In scenes such as outdoor advertising, classroom teaching, and science and technology exhibitions, spliced ​​screens are often used to display corresponding content. Spliced ​​screens are composed of multiple display screens spliced ​​together, each screen displays part of the picture, and together they form a complete picture to meet the needs of use in a variety of scenarios.

[0003] Since the spliced ​​screen is composed of multiple screens spliced ​​together to display the same picture, in order to ensure the display effect of the complete picture, the color difference between each screen is extremely high. However, due to the hardware reasons of different screens, even if the image parameters of each screen are set to the same, there will be color differences between the screens. At present, the industry uses gain, offset and other technologies to adjust the color difference between screens, but it is still difficult to adjust the screen to display all grayscale values ​​consistently, which greatly affects the display effect of the spliced ​​screen. Summary of the invention

[0004] The present application provides a screen grayscale adjustment method, device, equipment and storage medium, which effectively adjust the gray picture display effect of the spliced ​​screen to be consistent.

[0005] In a first aspect, the present application provides a screen grayscale adjustment method, the method comprising:

[0006] The first display displays a gray solid color picture; the first display is any display in the splicing screen, the splicing screen includes multiple displays, and the gray solid color picture is a picture corresponding to the video source signal connected to the splicing screen; the first display determines the target grayscale sub-interval to which the grayscale value of the gray solid color picture belongs; the grayscale value of the gray solid color picture is in any grayscale sub-interval among N preset grayscale sub-intervals; the first display receives the target red, green and blue RGB parameters input by the user, and the target RGB parameters are in the target grayscale sub-interval; the first display takes effect on the target RGB parameters and displays the target gray solid color picture.

[0007] In one possible implementation, the first display receives target RGB parameters input by a user, including: the first display receives candidate RGB parameters input by the user, and uses the candidate RGB parameters to display a gray pure color picture; the candidate RGB parameters are in a target grayscale sub-interval; if the user confirms the candidate RGB parameters, the first display uses the candidate RGB parameters as the target RGB parameters; otherwise, the first display receives new candidate RGB parameters input by the user.

[0008] In another possible implementation, the first display receives candidate RGB parameters input by the user, including: the first display displays a first interface, the first interface includes a first control for adjusting the RGB parameters; the first display receives the user's operation on the first control to obtain the candidate RGB parameters input by the user.

[0009] In another possible implementation, the first display determines the target grayscale sub-interval to which the grayscale value of the gray solid color image belongs, including: the first display receives an interval judgment instruction from the user; in response to the interval judgment instruction, the first display displays a second interface, and the second interface includes an identifier of a preset grayscale sub-interval; the first display receives a confirmation operation from the user on the second interface to determine the target grayscale sub-interval.

[0010] In another possible implementation, the second interface also includes a second control for adjusting the grayscale sub-interval; before the first display receives the user's confirmation operation on the second interface and determines the target grayscale sub-interval, the above method also includes: the first display receives the user's operation on the second control to obtain the candidate grayscale sub-interval selected by the user; when the grayscale value of the gray solid color picture is within the range indicated by the candidate grayscale sub-interval, the second interface displays a reminder color, and the reminder color is used to prompt the user that the current candidate grayscale sub-interval is the target grayscale sub-interval to which the grayscale value of the gray solid color picture belongs; the first display receives the user's confirmation operation on the second interface and determines the target grayscale sub-interval, including: when the second interface displays the reminder color, the user's confirmation operation on the second interface is received, and the first display determines the candidate grayscale sub-interval as the target grayscale sub-interval; otherwise, the first display receives a new candidate grayscale sub-interval input by the user.

[0011] In another possible implementation, the color difference between the target gray pure color image and the gray pure color image displayed by the reference display is less than or equal to a threshold value, and the reference display is any display in the spliced ​​screen that takes effect on the target RGB parameters; or, the reference display is any display other than the first display in the spliced ​​screen.

[0012] In another possible implementation, the first display displays a gray solid color picture, including: the first display displays N gray solid color pictures in sequence; the N gray solid color pictures correspond one-to-one to N preset gray sub-intervals; wherein N is greater than or equal to 2.

[0013] In another possible implementation, N is 10 or 16.

[0014] The screen grayscale adjustment method provided in the embodiment of the present application determines the target grayscale sub-interval to which the grayscale value of the display of the gray pure color picture belongs, and then adjusts the RGB parameters within the target grayscale sub-interval to adjust the display effect of the screen grayscale. This way of adjusting each sub-interval separately can adjust the picture display effect of each grayscale sub-interval separately, and the display effect of each grayscale sub-interval does not affect each other, so that the display effect of all gray pure color pictures can be adjusted consistently, solving the problem in the prior art that the gain / offset technology used affects the display effect of all pictures and it is difficult to adjust the picture display effect consistently.

[0015] Moreover, this solution can directly adjust the screen grayscale of the display splicing screen on site through user interaction, thereby improving the adjustment efficiency of the screen grayscale at a relatively low cost.

[0016] In a second aspect, the present application provides a screen grayscale adjustment device, which is applied to a first display. The device includes: a display module, a determination module and a receiving module.

[0017] The display module is used to display a gray pure color picture; the first display is any display in the splicing screen, the splicing screen includes multiple displays, and the gray pure color picture is a picture corresponding to the video source signal connected to the splicing screen; the determination module is used to determine the target grayscale sub-interval to which the grayscale value of the gray pure color picture belongs; the grayscale value of the gray pure color picture is in any grayscale sub-interval among N preset grayscale sub-intervals; the receiving module is used to receive the target red, green, and blue RGB parameters input by the user, and the target RGB parameters are in the target grayscale sub-interval; the display module is also used to take effect the target RGB parameters and display the target gray pure color picture.

[0018] In one possible implementation, the receiving module is specifically used to receive candidate RGB parameters input by a user, and use the candidate RGB parameters to display a gray pure color picture; the candidate RGB parameters are in a target grayscale sub-interval; if the user confirms the candidate RGB parameters, the candidate RGB parameters are used as target RGB parameters; otherwise, new candidate RGB parameters input by the user are received.

[0019] In another possible implementation, the receiving module is specifically configured to display a first interface including a first control for adjusting RGB parameters; receive an operation of the user on the first control, and obtain candidate RGB parameters input by the user.

[0020] In another possible implementation, the determination module is specifically used to receive an interval judgment instruction from a user; in response to the interval judgment instruction, display a second interface, the second interface including an identifier of a preset grayscale sub-interval; receive a confirmation operation from the user on the second interface, and determine the target grayscale sub-interval.

[0021] In another possible implementation, the receiving module is also used to receive the user's operation on the second control to obtain the candidate grayscale sub-interval selected by the user; the display module is also used to display a reminder color on the second interface when the grayscale value of the gray solid color image is within the range indicated by the candidate grayscale sub-interval, and the reminder color is used to prompt the user that the current candidate grayscale sub-interval is the target grayscale sub-interval to which the grayscale value of the gray solid color image belongs; the determination module is specifically used to receive the user's confirmation operation on the second interface when the reminder color is displayed on the second interface, and determine that the candidate grayscale sub-interval is the target grayscale sub-interval; otherwise, receive a new candidate grayscale sub-interval input by the user.

[0022] In another possible implementation, the color difference between the target gray pure color image and the gray pure color image displayed by the reference display is less than or equal to a threshold value, and the reference display is any display in the spliced ​​screen that takes effect on the target RGB parameters; or, the reference display is any display other than the first display in the spliced ​​screen.

[0023] In another possible implementation, the display module is specifically used to display N gray pure color pictures in sequence; the N gray pure color pictures correspond one-to-one to N preset gray sub-intervals; wherein N is greater than or equal to 2.

[0024] In another possible implementation, N is 10 or 16.

[0025] In a third aspect, the present application provides an electronic device, comprising: a processor and a memory; the memory stores instructions executable by the processor; when the processor is configured to execute the instructions, the electronic device implements the method of the first aspect above.

[0026] In a fourth aspect, the present application provides a computer-readable storage medium, which includes: computer software instructions; when the computer software instructions are executed in an electronic device, the electronic device implements the method of the first aspect above.

[0027] In a fifth aspect, the present application provides a computer program product. When the computer program product is run on a computer, it enables the computer to execute the steps of the related method described in the first aspect above to implement the method of the first aspect above.

[0028] The beneficial effects of the second to fifth aspects mentioned above can be referred to the corresponding description of the first aspect and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the composition of a current image processing system provided by this application;

[0030] Figure 2 A schematic diagram of an application environment of a screen grayscale adjustment method provided in this application;

[0031] Figure 3 A flowchart of a screen grayscale adjustment method provided in this application;

[0032] Figure 4 A flowchart of another screen grayscale adjustment method provided by the present application;

[0033] Figure 5 A schematic diagram of a second interface provided by the present application;

[0034] Figure 6 A schematic diagram of a second interface change provided by the present application;

[0035] Figure 7 A schematic diagram of a first interface provided by the present application;

[0036] Figure 8 A flowchart of another screen grayscale adjustment method provided by the present application;

[0037] Fig. 9 A line graph of RGB parameters provided for this application;

[0038] Fig.10 A schematic diagram of a 16-level grayscale provided in this application;

[0039] Fig.11 A schematic diagram of the composition of a system architecture provided for this application;

[0040] Fig.12 A schematic diagram of the composition of a screen grayscale adjustment device provided in this application;

[0041] Fig.13 A schematic diagram of the composition of an electronic device provided in this application. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0043] It should be noted that, in the embodiments of the present application, words such as "exemplarily" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplarily" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplarily" or "for example" is intended to present related concepts in a specific way.

[0044] In order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same items or similar items with basically the same functions and effects. Those skilled in the art can understand that the words "first", "second", etc. are not limiting the quantity and execution order.

[0045] In the description of the present application, unless otherwise specified, “plurality” means two or more.

[0046] In order to facilitate understanding of the technical solution of the present application, the following is a brief introduction to the terms involved in the present application.

[0047] 1. Spliced ​​screen: It is a device that combines multiple display screens and uses them as one screen. Spliced ​​screens can be used as a single display or spliced ​​into a super large screen. According to different usage requirements, it can realize the function of changing the screen size. When splicing into a large screen, there may be color difference between adjacent screens, and the picture effect is inconsistent.

[0048] 2. Color difference: The color display difference between different screens. The cause of color difference is mostly related to hardware such as LCD and lamp beads.

[0049] 3. RGB parameters: represent the numerical values ​​of red, green and blue pixels respectively. The numerical value of each color is between 0-255. Changing the RGB parameters, that is, changing the pixel values ​​of the three RGB colors, can adjust the grayscale display effect of the screen.

[0050] The spliced ​​screen is composed of multiple display screens spliced ​​together. Each display screen displays a part of the picture, and multiple display screens are combined to display the same complete picture. In order to ensure the display effect of the complete picture, it is necessary to adjust the color difference between each screen so that the display effect of each screen tends to be consistent. However, due to the differences in the properties of hardware such as LCD, lamp beads, diodes, etc. used in different displays during the manufacturing process, even if each display is set to the same image parameters, there will still be color differences between the screens in the actual display effect. Therefore, the adjustment plan for the color difference of spliced ​​screens is a hot topic in the industry.

[0051] The grayscale of the screen refers to the degree of color intensity, and is one of the important factors that affect the color difference between screens. At present, the industry generally uses gain and offset processing technology to adjust the grayscale of the screen. This processing technology is likely to affect the grayscale effect of all pictures, and it is difficult to adjust the display effect of all gray pictures to be consistent. In addition, the industry also uses optical equipment to adjust the grayscale of the screen. Experienced staff are required to collect screen data through optical equipment such as brightness meters, and then correct the screen display effect. For ordinary users, the conditions are relatively harsh and inconvenient for on-site adjustment.

[0052] In summary, how to conveniently and effectively adjust the screen grayscale is a problem that needs to be solved urgently.

[0053] Based on the above analysis, the embodiment of the present application provides a screen grayscale adjustment method. By using this method, the grayscale of the screen can be adjusted in segments through interaction with the user, effectively reducing the color difference of the grayscale between screens, and effectively adjusting each display screen in the spliced ​​screen to have a consistent display effect for the same gray. This method can be used in the grayscale adjustment process of various types of displays, such as liquid crystal displays (LCD), light-emitting diode displays (LED), etc.

[0054] Figure 1 It is a schematic diagram of the composition of the current image processing system. Among them, the image processing system includes an image processing module and a conversion module. Among them, the image processing module includes a preliminary image processing module, a gamma processing module and a gain / offset processing module. The preliminary image processing module is used to adjust the color, brightness and contrast of the image data. The gamma processing module is used to adjust the grayscale color difference of the image data. The gain / offset processing module is used to adjust the display effect of white and low gray of the image data. The conversion module is a timer / counter control register (timer control register, TCON), which is used to convert the LVDS signal from the image processing module into a signal that can drive the display. The screen grayscale adjustment method provided in the embodiment of the present application can be implemented by the above-mentioned gamma processing module.

[0055] The screen grayscale adjustment method provided in this application can be applied to Figure 2 In the application environment shown. Figure 2 As shown, the application environment may include: a display control device 201 and a splicing screen 202. The display control device 201 and the splicing screen 202 are connected.

[0056] The display control device 201 can be applied to a server to provide a video source signal of a gray solid color screen. The server mentioned here can be a server cluster composed of multiple servers, or a single server, or a computer. The display control device 201 can specifically be a processor or processing chip in the server. The embodiment of the present application does not limit the specific device form of the above-mentioned server. Figure 2 In the figure, the display control device 201 is taken as an example as a single computer.

[0057] The splicing screen 202 is composed of multiple displays spliced ​​together, and is used to display the same picture in combination. The splicing screen is connected to the display control device 201 through a bus, and is used to receive and display the video source signal from the display control device 201.

[0058] In addition, the application environment may also include: a screen grayscale adjustment device 203. Figure 2 As shown, the screen grayscale adjustment device 203 can be deployed in a server.

[0059] Alternatively, the screen grayscale adjustment device 203 is deployed in the display control device 201 ( Figure 2 ), which is used to execute the method provided by the present application to adjust the screen grayscale of each display in the spliced ​​screen 202. The server mentioned here can be a server cluster composed of multiple servers, or a single server, or a computer. The screen grayscale adjustment device 203 can specifically be a processor or processing chip in the server. The embodiment of the present application does not limit the specific device form of the above-mentioned server. Figure 2 In the figure, the screen grayscale adjustment device 203 is taken as a single server as an example.

[0060] The above embodiment is described by taking the screen grayscale adjustment device 203 as a single server to adjust the screen grayscale of the spliced ​​screen 202 as an example. In other embodiments, the screen grayscale adjustment device 203 can be integrated in each display in the spliced ​​screen 202, and the screen grayscale adjustment device 203 can be a circuit board, a single-chip microcomputer, or a hardware board, etc. set in the display, that is, the screen grayscale adjustment device 203 and the spliced ​​screen 202 can be the same device. The embodiment of the present application does not limit the specific form of the screen grayscale adjustment device 203.

[0061] The user can adjust the grayscale of the spliced ​​screen by adjusting the grayscale adjustment device, or by directly controlling the display in the spliced ​​screen (ie, the grayscale adjustment device is integrated in the display). The embodiment of the present application is described by taking the user directly adjusting the display as an example.

[0062] Figure 3The following is a flow chart of a method for adjusting screen grayscale provided in an embodiment of the present application. For example, the method for adjusting screen grayscale provided in the present application can be applied to Figure 2 In the illustrated application environment.

[0063] As mentioned above, due to the hardware reasons of the spliced ​​screen, there is color difference in the grayscale of the displayed picture. After the spliced ​​screen is installed, it is necessary to adjust the screen grayscale of each display in the spliced ​​screen so that the effect of the spliced ​​screen display is consistent with the visual experience of the human eye. When the screen grayscale of the spliced ​​screen needs to be adjusted, first, the video source signal of the gray pure color picture is sent to the spliced ​​screen 202 through the display control device 201, so that the spliced ​​screen 202 receives the video source signal and displays the gray pure color picture. At this time, each display in the spliced ​​screen displays a gray pure color picture of the same grayscale, so that the user can easily compare the color difference between the screens to adjust the grayscale of the screen.

[0064] It should be noted that the solution provided by the present application has the same grayscale adjustment process for each display in the spliced ​​screen. The following embodiments are only described by taking the grayscale adjustment of the first display as an example, and do not constitute a specific limitation. In practical applications, the following method can be executed for each display in the spliced ​​screen to achieve the purpose of adjusting the display effect of the spliced ​​screen to be consistent.

[0065] like Figure 3 As shown, the screen grayscale adjustment method provided by the present application may specifically include the following steps:

[0066] S301. The first display displays a solid gray picture.

[0067] Among them, the first display is any display in the splicing screen, the splicing screen includes multiple displays, and the gray solid color picture is the picture corresponding to the video source signal connected to the splicing screen.

[0068] In some embodiments, the first display in the spliced ​​screen displays a gray pure color picture corresponding to the video source signal, so as to adjust the screen grayscale based on the gray pure color picture.

[0069] S302: The first display determines a target grayscale sub-interval to which the grayscale value of the gray pure color picture belongs.

[0070] The target grayscale sub-interval is one of N preset grayscale sub-intervals divided in advance, and the grayscale value of the gray pure color picture is in any grayscale sub-interval (ie, the target grayscale sub-interval) among the N preset grayscale sub-intervals.

[0071] The screen grayscale adjustment method provided in the embodiment of the present application divides the grayscale of 0-255 into N preset grayscale sub-intervals, and weakens the grayscale display color difference between screens through grayscale segmentation adjustment. It should be noted that the value of N can be adjusted according to the actual usage scenario. In general, the value of N can be 10 or 16. In this way, the human eye can clearly see the grayscale level changes in each interval of the divided grayscale sub-intervals, which is convenient for users to adjust the screen grayscale.

[0072] It should be noted that when dividing N preset grayscale sub-intervals, there is a situation where the grayscale cannot be divided evenly because the minimum unit of the grayscale value is 1. Therefore, the parameter range of each grayscale sub-interval can be adaptively adjusted (one more parameter or one less parameter), and the grayscale of 0-255 can be evenly divided while ensuring that the parameter range of each grayscale sub-interval is as close as possible.

[0073] To adjust the screen grayscale by this grayscale segmentation adjustment method, first determine which grayscale sub-interval the grayscale of the current picture in the first display belongs to. Therefore, in some embodiments, the first display can determine the target grayscale sub-interval to which the grayscale value of the gray pure color picture displayed by itself belongs.

[0074] For example, the specific determination method in S302 may be as follows: Figure 4 As shown, it includes S302a-S302e.

[0075] S302a: The first display receives a section determination instruction from a user.

[0076] S302b: In response to the interval determination instruction, the first display displays the second interface.

[0077] The second interface includes a preset grayscale sub-interval identifier and a second control for adjusting the grayscale sub-interval.

[0078] In some embodiments, the first display may receive an interval determination instruction from a user, and in response to the interval determination instruction, the first display may display a second screen including an identifier of a preset grayscale sub-interval and a second control for adjusting the grayscale sub-interval.

[0079] It should be noted that the present application is described by taking the screen grayscale adjustment device integrated in the spliced ​​screen and the number of preset grayscale sub-intervals as 10 as an example, and the user can send an interval judgment instruction to the first display by operating the remote control of the display.

[0080] For example, after the user sends an interval determination instruction through the remote control, the first display may receive the interval determination instruction of the user, and the second interface displayed may be as follows: Figure 5The preset grayscale sub-interval identifier and the second control are displayed at the bottom of the screen, and the initial value of the preset grayscale sub-interval identifier displayed at the bottom of the screen can be a default value (such as the middle value in the preset grayscale sub-interval identifier, shown as grayscale sub-interval 5).

[0081] S302c: The first display receives the user's operation on the second control, and obtains the candidate grayscale sub-interval selected by the user.

[0082] In some embodiments, after displaying the second interface, the first display may receive a user operation on a second control in the second interface to implement switching of grayscale sub-intervals and obtain a candidate grayscale sub-interval selected by the user.

[0083] For example, combined with Figure 5 After the first display displays the second interface, according to the user's input operation on the second control on the second interface, the first display increases or decreases the mark of the preset grayscale sub-interval displayed. Figure 5 Click the right arrow once in the interface shown in the figure to Figure 6 The preset grayscale sub-interval identifier displayed at the bottom of the screen in the second interface indicated by a in FIG. is displayed after being increased by 1, such as Figure 6 As shown in b.

[0084] S302d: When the grayscale value of the gray solid color picture is within the range indicated by the candidate grayscale sub-interval, the second interface displays a reminder color.

[0085] The reminder color is used to remind the user that the current candidate grayscale sub-interval is the target grayscale sub-interval to which the grayscale value of the gray pure color picture belongs.

[0086] In some embodiments, when the grayscale value of the gray solid color image is within the range indicated by the candidate grayscale sub-interval, the first display displays a reminder color on the second interface to prompt the user that the current candidate grayscale sub-interval is the target grayscale sub-interval to which the grayscale value of the gray solid color image belongs.

[0087] It should be noted that after receiving the video source signal, the display displays the picture after conversion by its own underlying chip. This solution needs to determine in which grayscale sub-interval the grayscale value of the gray pure color picture is. The software of the display does not have the authority to obtain the grayscale value data of the video source signal from the underlying chip of the display, but it can send data to the underlying chip, and by writing / configuring the interval parameters, the picture displayed by the display changes. For example, in an embodiment of the present application, each time the user switches the candidate grayscale sub-interval, the software of the display can write the range parameters indicated by the candidate grayscale sub-interval currently selected by the user into the underlying chip, and the underlying chip determines whether the grayscale value of the gray pure color picture meets the range indicated by the current candidate grayscale sub-interval. If it meets the range, the first display will display a reminder color to remind the user that the currently selected candidate grayscale sub-interval is the target grayscale sub-interval to which the gray pure color picture belongs at this time.

[0088] For example, Figure 6 A and Figure 6 As shown in FIG. 5 b, the user switches from candidate grayscale subinterval 5 to candidate grayscale subinterval 6, and the gray image displayed on the screen does not change. Figure 6 Medium b and Figure 6 As shown in c, the user switches from candidate grayscale subinterval 6 to candidate grayscale subinterval 7, and the screen changes from gray to yellow, which can remind the user that the currently selected candidate grayscale subinterval 7 is the target grayscale subinterval. Of course, the yellow is only an example of a reminder color, and other colors can also be used as reminder colors, and the embodiment of the present application does not specifically limit this.

[0089] S302e: The first display receives a confirmation operation of the user on the second interface, and determines a target grayscale sub-interval.

[0090] In some embodiments, if the first display receives a confirmation operation from the user on the second interface, the target grayscale sub-interval is determined.

[0091] Specifically, when the second interface displays the reminder color, if the first display receives the user's confirmation operation on the second interface, the first display determines the candidate grayscale sub-interval as the target grayscale sub-interval. Otherwise, the first display receives a new candidate grayscale sub-interval input by the user.

[0092] For example, in combination with the example in the above embodiment, the second interface displays the logo of grayscale sub-interval 7, and displays the reminder color yellow. In this state, if the first display does not receive the user's instruction for more than a preset time, or receives the confirmation instruction sent by the user through the remote control, the first display confirms that grayscale sub-interval 7 is the target grayscale sub-interval to which the gray solid color picture currently displayed on the screen belongs. Otherwise, the first display can receive a new candidate grayscale sub-interval input by the user to continue to determine the target grayscale sub-interval.

[0093] The above S302a-S302e is described by taking the example of determining the target grayscale sub-interval to which the gray solid color picture currently displayed on the screen belongs through the interval judgment function. In some other embodiments, when interval judgment is required, the first display may display a color chart on the screen, the color chart including all grays corresponding to the preset grayscale sub-intervals (e.g. Fig.10 The user can determine the target grayscale sub-interval by comparing the gray displayed on the current screen with which gray among the N grays shown on the color chart is similar.

[0094] S303: The first display receives target RGB parameters input by the user, and the target RGB parameters are within a target grayscale sub-interval.

[0095] Among them, the RGB parameters include R parameters, G parameters and B parameters.

[0096] The target RGB parameters can be RGB parameters determined by the user based on observation when all screens in the spliced ​​screen display the gray pure color picture and the naked eye has the same viewing effect. A set of target RGB parameters will be determined in S303 for a gray pure color picture, which can be called the target RGB parameters of the gray pure color picture.

[0097] In some embodiments, after determining the target grayscale sub-interval, the first display may receive a target RGB parameter input by a user to adjust the grayscale of the screen according to the target RGB parameter.

[0098] Exemplarily, the specific determination method in S303 may be as follows: Figure 4 As shown, it includes S303a-S303b.

[0099] S303a: The first display receives the candidate RGB parameters input by the user, and uses the candidate RGB parameters to display a gray pure color picture.

[0100] Among them, the candidate RGB parameters are in the target grayscale sub-interval.

[0101] Specifically, S303a can be implemented as follows: after determining the target grayscale sub-interval to which the grayscale value of the displayed gray solid color picture belongs, the first display displays a first interface, such as Figure 7 As shown, the first interface includes a first control for adjusting RGB parameters; an operation of the user on the first control is received to obtain candidate RGB parameters input by the user.

[0102] S303b: If the user confirms the candidate RGB parameters, the first display uses the candidate RGB parameters as target RGB parameters; otherwise, the first display receives new candidate RGB parameters input by the user.

[0103] In some embodiments, the first display may receive the candidate RGB parameters input by the user. Further, in response to the candidate RGB parameters, the first display may display a gray solid color screen using the candidate RGB parameters. Each time the user inputs new candidate RGB parameters, the first display may adjust the display effect of the screen to facilitate the user to adjust the RGB parameters. After receiving the user's confirmation operation, the first display may use the current candidate RGB parameters as the target RGB parameters.

[0104] For example, in combination with the above example, the grayscale subinterval is a 7-bit target grayscale subinterval. After receiving the user's confirmation instruction on the first interface, the screen grayscale adjustment device can display the first interface on the first display. Among them, the first interface can be an interface, including three second controls corresponding to the R parameter, the G parameter and the B parameter. Alternatively, the first interface can be three interfaces, each interface corresponding to a second control for adjusting the RGB parameters. The embodiment of the present application does not impose specific restrictions on this.

[0105] Users can Figure 7 In the interface shown, the candidate RGB parameters of grayscale subinterval 7 are adjusted by adjusting the second control of the RGB parameter. Specifically, the initial value of the control of the displayed RGB parameter can be a default value (such as the minimum value within the range indicated by grayscale subinterval 7: 150), and then according to the adjustment instruction of the second control of the displayed RGB parameter input by the user on the first interface, the corresponding RGB parameter is increased or decreased. For example, the user triggers the remote control Figure 7 If the second control of the R parameter shown in the figure points to the right once, the value of the R parameter will be changed from 150 to 151. It should be noted that the value variation range of each parameter is within the range indicated by the target grayscale sub-interval. That is, the grayscale value range indicated by the grayscale sub-interval 7 is approximately between 150-175, and the adjustment range of each parameter of the R parameter, the G parameter and the B parameter is between 150-175. The user's adjustment of any parameter among the R parameter, the G parameter and the B parameter will change the screen display effect of the first display. The user can further adjust the parameters according to the screen changes. After receiving the confirmation operation input by the user through the remote control, the first display can confirm that the current candidate RGB parameters are the target RGB parameters.

[0106] In some embodiments, the first display is the first display in the spliced ​​screen whose grayscale is adjusted by the user, and the target RGB parameters input by the user may be RGB parameters selected by the user according to his or her own visual experience.

[0107] In other embodiments, the first display is a display other than the first display whose grayscale is adjusted by the user in the spliced ​​screen, and the target RGB parameters input by the user can be RGB parameters that the user determines based on his / her own vision that the color difference between the first display and the display whose grayscale has been adjusted meets the display requirement. The display requirement can be consistent visual senses, or the error is within an acceptable range, or the color difference is less than or equal to a threshold.

[0108] In other embodiments, the target RGB parameters input by the user may be RGB parameters that the user determines based on his / her own vision that the color difference between the first display and the reference display meets the display requirements. The reference display may be a display selected from the spliced ​​screen, and the reference displays of different first displays are the same and fixed.

[0109] S304: The first display validates the target RGB parameters and displays the target gray pure color picture. In some embodiments, after determining the target RGB parameters, the first display may validate the target RGB parameters and display the target gray pure color picture corresponding to the target RGB parameters.

[0110] The target gray pure color picture refers to the picture displayed when the first display takes effect of the target RGB parameters and displays the gray pure color picture in S301.

[0111] In other embodiments, the color difference between the target gray pure color picture and the gray pure color picture displayed by the reference display is less than or equal to a threshold value, and the reference display is any display with the target RGB parameters in effect. It should be understood that the display with the target RGB parameters in effect refers to a display with grayscale adjusted. Further, the display with the target RGB parameters in effect may be a display with grayscale adjusted according to the solution provided in the present application.

[0112] The specific value of the threshold value may be a threshold value that the human eye considers consistent with respect to color difference, and may be determined based on the human eye's acceptance of color difference. The embodiment of the present application does not specifically limit the specific value of the threshold value.

[0113] In other embodiments, the color difference between the target gray pure color picture and the gray pure color picture displayed by the reference display is less than or equal to a threshold value, and the reference display is any display other than the first display in the spliced ​​screen. It should be understood that the reference display can be a display selected from the spliced ​​screen, and the reference displays of different first displays are the same and fixed.

[0114] It should be noted that the above S301-S304 are steps for adjusting the screen grayscale for any display in the spliced ​​screen. Therefore, the user can adjust a display as a reference display according to his or her own feelings, and adjust the other displays in the spliced ​​screen based on the reference display, so that the target gray pure color picture of the current display is consistent with the picture display effect of the reference display. Alternatively, if the user feels that the display effect of a certain display in the spliced ​​screen does not need to be adjusted to meet his or her needs, then the display can be determined as the reference display, and the screen grayscale adjustment method provided by this solution can be executed on other displays in the spliced ​​screen to adjust the display effect to be consistent with the reference display.

[0115] In other embodiments, the first display may use a gray solid color picture of each preset gray sub-interval, that is, display N (greater than or equal to 2) gray solid color pictures in sequence, and execute the above-mentioned processes S301 to S304 respectively, so that the first display displays the target gray solid color picture.

[0116] Furthermore, each display in the spliced ​​screen executes the above-mentioned solutions of S301 to S304 to make the display effect of the spliced ​​screen consistent.

[0117] It should be noted that the screen grayscale adjustment method provided in the embodiment of the present application can be used to adjust the display effect of the spliced ​​screen, and the above steps are mainly described based on one display in the spliced ​​screen. The following describes the process of the user adjusting the screen grayscale of the spliced ​​screen in combination with actual application scenarios.

[0118] Take the splicing screen composed of four displays as an example. These four displays can be called display 1, display 2, display 3 and display 4. At the beginning, the user first adjusts the screen grayscale of display 1, and first determines the grayscale sub-interval to which the gray pure color picture belongs, that is, display 1 can perform Figure 3 After determining the grayscale sub-interval, you can execute Figure 3 In S303 and S304, the grayscale adjustment of display 1 is completed. Then, for display 2, since each display in the spliced ​​screen is connected to the same video source signal, if display 1 determines that the gray pure color picture corresponding to the video source signal belongs to grayscale sub-interval 7, then the result of executing S302 with display 2 is generally also grayscale sub-interval 7, so display 2 does not need to execute Figure 3S302 in the above example directly executes S301, S303 and S304, and takes the screen grayscale display effect of display 1 as a reference to adjust the screen grayscale display effect of display 2 to be similar to that of display 1 (i.e., the color difference between the gray pure color picture displayed by display 2 and the gray pure color picture displayed by display 1 is invisible to the naked eye, or the color difference is acceptable). Similarly, for display 3 and display 4, both execute Figure 3 In S301, S303 and S304, the screen grayscale display effect is adjusted to be similar to the screen grayscale display effect of display 1. So far, the adjustment of the screen grayscale of each display of the spliced ​​screen in the grayscale sub-interval 7 is completed.

[0119] If the user needs to adjust the grayscale of other gray solid color images, Figure 2 The display control device changes the video source signal to generate other gray pure color images, and repeats the above steps to complete the screen grayscale adjustment. For example, for a 70% gray pure color image, after the screen grayscale adjustment is completed in grayscale sub-interval 7, the user generates a 60% gray pure color image through the display control device, and continues to complete the screen grayscale adjustment in grayscale sub-interval 6.

[0120] In some special scenarios, the video signal source may undergo multiple conversions before reaching the display, resulting in certain differences in the video source signals received by each display in the spliced ​​screen. For example, the gray pure color image displayed by display 1 may belong to gray sub-interval 7, while the gray pure color image displayed by display 2 may belong to gray sub-interval 6. Therefore, corresponding to each display in the spliced ​​screen, the following operations can be performed in sequence: Figure 3 S301-S304 are performed to complete the grayscale adjustment of the current image.

[0121] The present application also provides a flowchart of a method for adjusting screen grayscale. Figure 8 As shown, after the user interacts, the display determines which grayscale sub-interval the current image is in (i.e. Figure 3 Then, the user selects the corresponding interval and adjusts the RGB parameters corresponding to the interval (i.e. Figure 3 The display will process the RGB parameters logically and then make them effective (i.e. Figure 3 In S304), the user checks the effect. If it does not meet expectations, the user continues to adjust the RGB parameters corresponding to the interval. If it meets expectations, the user can change the gray screen and continue to repeat the above process.

[0122] In some scenarios, since the splicing screen only needs to display a few pictures with a higher frequency, the user only needs to adjust the RGB parameters of the grayscale sub-interval to which the current picture belongs, that is, the user does not need to adjust all preset grayscale sub-intervals (for example, 10 grayscale sub-intervals), and only needs to adjust a few of the preset grayscale sub-intervals to meet the usage needs. In other scenarios, for example, after the splicing screen is just installed, the technician adjusts the grayscale, and all grayscale sub-intervals should be adjusted to meet the needs of displaying various pictures on the splicing screen. Therefore, the user changes the video source signal to display the gray solid color pictures of the 10 preset grayscale sub-intervals, and executes for each gray solid color picture. Figure 3 S301-S304 in the program complete the screen grayscale adjustment in all preset grayscale sub-intervals. After the adjustment is completed, the display saves 10 sets of target RGB parameters. When the display is connected to any screen, since all grayscales in the 10 intervals have been adjusted separately, the 10 sets of target RGB parameters are effective for all screens and all grayscale sub-intervals to ensure the consistency of gray displayed on the spliced ​​screen. For example, Fig. 9 Provides a line chart of 10 sets of RGB parameters.

[0123] The present application also provides a 16-level grayscale image. Fig.10 As shown. Fig.10 In the figure, the grayscale value of 0-255 is divided into 16 intervals from pure black to pure white. The human eye can clearly distinguish the difference in gray display effects in different intervals. Therefore, this solution uses interval-based grayscale adjustment to effectively adjust the gray display effect in each interval to be consistent, fundamentally improving the color difference problem of all gray displays from 0-255.

[0124] The technical solution provided by the above embodiment brings at least the following beneficial effects. The screen grayscale adjustment method provided by the embodiment of the present application determines the target grayscale sub-interval to which the grayscale value of the picture belongs, and then adjusts the RGB parameters within the target grayscale sub-interval to adjust the display effect of the screen grayscale. This way of adjusting each sub-interval separately can adjust the picture display effect of each grayscale sub-interval separately, and the display effect of each grayscale sub-interval does not affect each other, so that the display effect of all grays can be adjusted consistently, solving the problem in the prior art that the gain / offset technology used affects the display effect of all pictures and it is difficult to adjust the picture display effect consistently.

[0125] Moreover, through user interaction, the screen grayscale of the spliced ​​screen can be directly adjusted on site, thereby improving the adjustment efficiency of the screen grayscale at a lower cost.

[0126] Fig.11 This is a system architecture diagram of a screen grayscale adjustment device provided in an embodiment of the present application. The screen grayscale adjustment device can be applied to a first display. Fig.11 As shown, the system architecture includes: a main control module, a user interaction module, a data acquisition module, a data format conversion module, a logic processing module and an effectiveness module. The main control module is connected to the user interaction module, the data acquisition module is connected to the data format conversion module, the data format conversion module is connected to the logic processing module, the logic processing module is connected to the effectiveness module, and the data acquisition module, the data format conversion module, the logic processing module and the effectiveness module are all connected to the user interaction module. The user interaction module user controls the display of interactive menus (e.g. Figure 5 The data acquisition module is used to obtain the RGB parameters input by the user, the data format conversion module is used to convert the RGB parameters into a format that the computer can support calculation (such as binary format), the logic processing module is used to configure the grayscale parameters of each interval according to the RGB parameters of each interval, and the validation module is used to validate the processed RGB parameters in the display. The main control module is used to control the cooperation between other modules.

[0127] In an exemplary embodiment, the present application further provides a screen grayscale adjustment device, which may include one or more functional modules for implementing the screen grayscale adjustment method of the above method embodiment.

[0128] For example, Fig.12 A schematic diagram of the composition of a screen grayscale adjustment device provided in an embodiment of the present application. Fig.12 As shown, the screen grayscale adjustment device includes: the device includes: a display module 1201, a determination module 1202 and a receiving module 1203. The display module 1201, the determination module 1202 and the receiving module 1203 are connected to each other. Among them, the determination module 1202 can be the above Fig.11 In the user interaction module, the receiving module 1203 can be the above Fig.11 The data acquisition module, data format conversion module and logic processing module, the display module 1201 can be the above Fig.11 The module is effective.

[0129] The display module 1201 is used to display a gray solid color picture; the first display is any display in the splicing screen, the splicing screen includes multiple displays, and the gray solid color picture is the picture corresponding to the video source signal connected to the splicing screen.

[0130] The determination module 1202 is used to determine the target grayscale sub-interval to which the grayscale value of the gray pure color picture belongs; the grayscale value of the gray pure color picture is in any grayscale sub-interval among N preset grayscale sub-intervals.

[0131] The receiving module 1203 is used to receive target red, green and blue (RGB) parameters input by a user, where the target RGB parameters are in a target grayscale sub-interval.

[0132] The display module 1201 is also used to validate the target RGB parameters and display the target gray pure color picture.

[0133] In some embodiments, the receiving module 1203 is specifically used to receive candidate RGB parameters input by the user, and use the candidate RGB parameters to display a gray solid color picture; the candidate RGB parameters are in the target grayscale sub-interval; if the user confirms the candidate RGB parameters, the candidate RGB parameters are used as the target RGB parameters; otherwise, new candidate RGB parameters are received input by the user.

[0134] In some embodiments, the receiving module 1203 is specifically used to display a first interface, where the first interface includes a first control for adjusting RGB parameters; receive a user's operation on the first control, and obtain candidate RGB parameters input by the user.

[0135] In some embodiments, the determination module 1202 is specifically used to receive an interval determination instruction from a user; in response to the interval determination instruction, display a second interface, the second interface including an identifier of a preset grayscale sub-interval; receive a confirmation operation from the user on the second interface, and determine a target grayscale sub-interval.

[0136] In some embodiments, the receiving module 1203 is further used to receive an operation of the user on the second control to obtain a candidate grayscale sub-interval selected by the user.

[0137] The display module 1201 is also used to display a reminder color on the second interface when the grayscale value of the gray solid color picture is within the range indicated by the candidate grayscale sub-interval. The reminder color is used to prompt the user that the current candidate grayscale sub-interval is the target grayscale sub-interval to which the grayscale value of the gray solid color picture belongs.

[0138] The determination module 1202 is specifically used to receive a confirmation operation from the user on the second interface and determine the candidate grayscale sub-interval as the target grayscale sub-interval when the reminder color is displayed on the second interface; otherwise, receive a new candidate grayscale sub-interval input by the user.

[0139] In some embodiments, the color difference between the target gray pure color image and the gray pure color image displayed by the reference display is less than or equal to a threshold value, and the reference display is any display in the spliced ​​screen that takes effect on the target RGB parameters; or, the reference display is any display other than the first display in the spliced ​​screen.

[0140] In some embodiments, the display module 1201 is specifically used to display N gray pure color pictures in sequence; the N gray pure color pictures correspond one-to-one to N preset gray sub-intervals; wherein N is greater than or equal to 2.

[0141] In some embodiments, N is 10 or 16.

[0142] In an exemplary embodiment, the embodiment of the present application further provides an electronic device, which may be the screen grayscale adjustment device or the first display in the above method embodiment. Fig.13 The following is a schematic diagram of the composition of the electronic device provided in the embodiment of the present application. Fig.13 As shown, the electronic device may include: a processor 1301 and a memory 1302; the memory 1302 stores instructions executable by the processor 1301; when the processor 1301 is configured to execute the instructions, the electronic device implements the method described in the aforementioned method embodiment.

[0143] In an exemplary embodiment, the embodiment of the present application further provides a computer-readable storage medium having computer program instructions stored thereon; when the computer program instructions are executed by a computer, the computer implements the method described in the aforementioned embodiment. The computer may be the above-mentioned electronic device. The computer-readable storage medium may be a non-temporary computer-readable storage medium, for example, a non-temporary computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0144] In an exemplary embodiment, the embodiment of the present application further provides a computer program product, which, when executed on a computer, enables the computer to execute the above-mentioned related method steps to implement the screen grayscale adjustment method in the above-mentioned embodiment.

[0145] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A screen grayscale adjustment method, characterized in that: The method comprises: The first display displays a gray solid color picture; the first display is any display in the splicing screen, the splicing screen includes multiple displays, and the gray solid color picture is a picture corresponding to the video source signal connected to the splicing screen; The first display determines a target grayscale sub-interval to which the grayscale value of the gray pure color picture belongs; the grayscale value of the gray pure color picture is in any grayscale sub-interval among N preset grayscale sub-intervals; The first display receives candidate RGB parameters input by a user, and uses the candidate RGB parameters to display the gray pure color picture; the candidate RGB parameters are within the target grayscale sub-interval; If the user confirms the candidate RGB parameters, the first display uses the candidate RGB parameters as target RGB parameters; the target RGB parameters are within the target grayscale sub-interval; The first display takes effect of the target RGB parameters and displays a target gray pure color picture.

2. The method according to claim 1, characterized in that: The method further comprises: If the user does not confirm the candidate RGB parameters, the first display receives new candidate RGB parameters input by the user.

3. The method according to claim 2, characterized in that The first display receives candidate RGB parameters input by a user, including: The first display displays a first interface, wherein the first interface includes a first control for adjusting RGB parameters; The first display receives an operation of the first control by a user and obtains candidate RGB parameters input by the user.

4. The method according to claim 1, characterized in that: The first display determines a target grayscale sub-interval to which the grayscale value of the gray pure color picture belongs, including: The first display receives a section determination instruction from a user; In response to the interval determination instruction, the first display displays a second interface, wherein the second interface includes an identifier of a preset grayscale sub-interval; The first display receives a confirmation operation from the user on the second interface and determines the target grayscale sub-interval.

5. The method according to claim 4, characterized in that The second interface further includes a second control for adjusting the grayscale sub-interval; before the first display receives a confirmation operation of the user on the second interface and determines the target grayscale sub-interval, the method further includes: The first display receives an operation of the second control by the user, and obtains a candidate grayscale sub-interval selected by the user; When the grayscale value of the gray solid color picture is within the range indicated by the candidate grayscale sub-interval, the second interface displays a reminder color, and the reminder color is used to remind the user that the current candidate grayscale sub-interval is the target grayscale sub-interval to which the grayscale value of the gray solid color picture belongs; The first display receives a confirmation operation of the user on the second interface, and determines the target grayscale sub-interval, including: When the second interface displays a reminder color, the first display receives a confirmation operation from the user on the second interface, and determines that the candidate grayscale sub-interval is the target grayscale sub-interval; otherwise, the first display receives a new candidate grayscale sub-interval input by the user.

6. The method according to any one of claims 1 to 5, characterized in that: The color difference between the target gray pure color picture and the gray pure color picture displayed by the reference display is less than or equal to a threshold value, and the reference display is any display in the spliced ​​screen for which the target RGB parameters are effective; or, the reference display is any display other than the first display in the spliced ​​screen.

7. The method according to any one of claims 1 to 5, characterized in that: The first display displays a gray solid color picture, including: The first display sequentially displays N gray pure color images; the N gray pure color images correspond one-to-one to the N preset gray sub-intervals; wherein N is greater than or equal to 2.

8. The method according to claim 7, characterized in that The N is 10 or 16.

9. A screen grayscale adjustment device, applied to a first display, characterized in that: The device comprises: a display module, a determination module and a receiving module; The display module is used to display a gray solid color picture; the first display is any display in the splicing screen, the splicing screen includes multiple displays, and the gray solid color picture is a picture corresponding to the video source signal connected to the splicing screen; The determination module is used to determine the target grayscale sub-interval to which the grayscale value of the gray pure color picture belongs; the grayscale value of the gray pure color picture is in any grayscale sub-interval among N preset grayscale sub-intervals; The receiving module is used for the first display to receive the candidate RGB parameters input by the user, and to use the candidate RGB parameters to display the gray pure color picture; the candidate RGB parameters are in the target gray sub-interval; If the user confirms the candidate RGB parameters, the first display uses the candidate RGB parameters as target RGB parameters; the target RGB parameters are within the target grayscale sub-interval; The display module is also used to validate the target RGB parameters and display a target gray pure color picture.

10. The device according to claim 9, characterized in that The receiving module is further used for receiving new candidate RGB parameters input by the user if the user does not confirm the candidate RGB parameters; The receiving module is specifically used to display a first interface, wherein the first interface includes a first control for adjusting RGB parameters; receive an operation of the first control by a user, and obtain candidate RGB parameters input by the user; The determination module is specifically configured to receive an interval determination instruction from a user; in response to the interval determination instruction, display a second interface, wherein the second interface includes an identifier of a preset grayscale sub-interval; receive a confirmation operation from the user on the second interface, and determine the target grayscale sub-interval; The second interface also includes a second control for adjusting the grayscale sub-interval; the receiving module is further used to receive a user's operation on the second control to obtain a candidate grayscale sub-interval selected by the user; The display module is further configured to, when the grayscale value of the gray pure color picture is within the range indicated by the candidate grayscale sub-interval, display a reminder color on the second interface, wherein the reminder color is used to prompt the user that the current candidate grayscale sub-interval is the target grayscale sub-interval to which the grayscale value of the gray pure color picture belongs; The determination module is specifically configured to, when the second interface displays a reminder color, receive a confirmation operation from the user on the second interface, and determine that the candidate grayscale sub-interval is the target grayscale sub-interval; Otherwise, receiving a new candidate grayscale sub-interval input by the user; The color difference between the target gray pure color picture and the gray pure color picture displayed by the reference display is less than or equal to a threshold value, and the reference display is any display in the spliced ​​screen for which the target RGB parameters are effective; or, the reference display is any display other than the first display in the spliced ​​screen; The display module is specifically used to display N gray pure color pictures in sequence; the N gray pure color pictures correspond one to one to the N preset gray sub-intervals; wherein N is greater than or equal to 2; The N is 10 or 16.

11. An electronic device, characterized in that: The electronic device comprises: a processor and a memory; The memory stores instructions executable by the processor; When the processor is configured to execute the instructions, the electronic device implements the method according to any one of claims 1 to 8.

12. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes: computer software instructions; When the computer software instructions are executed in an electronic device, the electronic device implements the method according to any one of claims 1 to 8.

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