CN109671388B - Method and device for acquiring correction data - Google Patents
Method and device for acquiring correction data Download PDFInfo
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- CN109671388B CN109671388B CN201910059130.5A CN201910059130A CN109671388B CN 109671388 B CN109671388 B CN 109671388B CN 201910059130 A CN201910059130 A CN 201910059130A CN 109671388 B CN109671388 B CN 109671388B
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- 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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Abstract
The application provides a method and a device for acquiring correction data, wherein the method comprises the following steps: acquiring pixel point layout of an LED box body of a light-emitting diode, establishing a pure color picture with the pixel point layout, and projecting the pure color picture to the LED box body for display; adjusting the brightness of pixel points corresponding to the splicing positions on the pure color picture according to the brightness of the splicing positions of the corresponding LED box bodies in the projection picture; the method and the device have the advantages that the adjustment coefficient is generated after adjustment is completed, the original correction data is corrected according to the adjustment coefficient, and then the new correction data is obtained.
Description
Technical Field
The present application relates to, but not limited to, the field of displays, and in particular, to a method and an apparatus for acquiring correction data.
Background
In the related art, a method for adjusting a Light Emitting Diode (LED) display screen to splice bright and dark lines includes the following steps: the first method is to directly adjust the distance between two adjacent columns (or rows) of LED pixel points at the splicing position. Namely, the adjacent LED modules (or the adjacent LED boxes) with bright and dark lines are spliced again. And secondly, manually correcting the correction data of the LED pixel points at the splicing positions by technicians according to experience.
However, the first method has low efficiency, and even after re-splicing, bright and dark lines still exist. The second method is low in efficiency and large in error, and correction data of the LED pixel points at the splicing positions may need to be adjusted for many times.
Bright lines or dark lines may appear at the splicing positions between the LED modules and the splicing positions between the LED boxes. How to adjust the bright dark line of LED display screen concatenation position department is the technical problem that this application will be solved.
Aiming at the problem that correction data for adjusting brightness and darkness of an LED display screen in the related art is not accurate enough, no effective solution is available at present.
Disclosure of Invention
The embodiment of the application provides a method and a device for acquiring correction data, and aims to at least solve the problem that the correction data for adjusting brightness and darkness of an LED display screen in the related art is not accurate enough.
According to an embodiment of the present application, there is provided a correction data acquiring method including: acquiring pixel point layout of an LED box body of a light-emitting diode, establishing a pure color picture with the pixel point layout, and projecting the pure color picture to the LED box body for display; adjusting the brightness of pixel points corresponding to the splicing positions on the pure color picture according to the brightness of the splicing positions of the corresponding LED box bodies in the projection picture; and generating an adjusting coefficient after the adjustment is finished, and correcting original correction data according to the adjusting coefficient to obtain new correction data, wherein the original correction data and the new correction data are both used for adjusting the brightness of pixel points of the LED box body.
According to another embodiment of the present application, there is also provided a method for adjusting bright and dark lines, including: shooting a picture of a pure-color picture projected onto the LED box body through a camera; when detecting that bright and dark lines exist at the marked splicing position in the picture, sending an adjusting instruction, wherein the adjusting instruction is used for adjusting the brightness of pixel points at the position, corresponding to the splicing position where the bright and dark lines exist, on the pure color picture; or when detecting that no bright and dark lines exist at the marked splicing part in the picture, sending an instruction of finishing adjustment.
According to another embodiment of the present application, there is also provided a correction data acquiring apparatus including: the first acquisition module is used for acquiring pixel point layout of the LED box body of the light-emitting diode, establishing a pure color picture with the pixel point layout, and projecting the pure color picture to the LED box body for display; the adjusting module is used for adjusting the brightness of pixel points corresponding to the splicing positions on the pure color picture according to the brightness of the splicing positions of the corresponding LED box bodies in the projection picture; and the second acquisition module is used for generating an adjustment coefficient after the adjustment is finished, and acquiring new correction data after the original correction data is corrected according to the adjustment coefficient, wherein the original correction data and the new correction data are both used for adjusting the brightness of pixel points of the LED box body.
According to another embodiment of the present application, there is also provided an adjusting apparatus for a bright and dark line, including: the shooting device is used for shooting the picture of the pure-color picture projected onto the LED box body through the camera; the indication module is used for sending an adjustment instruction when detecting that bright and dark lines exist at the marked splicing position in the picture, wherein the adjustment instruction is used for adjusting the brightness of pixel points at the position, corresponding to the splicing position where the bright and dark lines exist, on the pure color picture; or the indication module is further configured to send an instruction of completing adjustment when it is detected that there is no bright or dark line at the marked splicing position in the picture.
According to a further embodiment of the present application, there is also provided a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.
According to yet another embodiment of the present application, there is also provided an electronic device, comprising a memory in which a computer program is stored and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.
According to the method and the device, pixel point layout of the LED box body of the light-emitting diode is obtained, a pure color picture with the pixel point layout is established, and the pure color picture is projected to the LED box body to be displayed; adjusting the brightness of pixel points corresponding to the splicing positions on the pure color picture according to the brightness of the splicing positions of the corresponding LED box bodies in the projection picture; the method comprises the steps of generating an adjusting coefficient after adjustment is completed, and acquiring new correcting data after original correcting data are corrected according to the adjusting coefficient, wherein the original correcting data and the new correcting data are both used for adjusting the brightness of pixel points of the LED box body.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a block diagram of a hardware configuration of a computer terminal of a correction data acquisition method according to an embodiment of the present application;
fig. 2 is a flowchart of a correction data acquisition method according to an embodiment of the present application.
Detailed Description
The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The technical scheme in the application file can be applied to the correction process of bright and dark lines of the LED display screen, namely the scheme can be adopted to obtain accurate and effective correction data, then the correction data is stored in the LED display screen, and the LED display screen can automatically perform bright and dark correction according to the correction data in the follow-up process of using the LED display screen.
Example one
The method provided by the first embodiment of the present application may be executed in a computer terminal or a similar computing device. Taking a computer terminal as an example, fig. 1 is a hardware structure block diagram of a computer terminal of a correction data acquiring method according to an embodiment of the present application, as shown in fig. 1, the computer terminal may include one or more processors 102 (only one is shown in fig. 1) (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), and a memory 104 for storing data, and optionally, the computer terminal may further include a transmission device 106 for a communication function and an input/output device 108. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration and is not intended to limit the structure of the computer terminal. For example, the computer terminal may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.
The memory 104 may be used to store software programs and modules of application software, such as program instructions/modules corresponding to the correction data acquiring method in the embodiment of the present application, and the processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104, so as to implement the above-mentioned method. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to a computer terminal over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the computer terminal. In one example, the transmission device 106 includes a Network adapter (NIC) that can be connected to other Network devices through a base station to communicate with the internet. In one example, the transmission device 106 can be a Radio Frequency (RF) module, which is used to communicate with the internet in a wireless manner.
The computer terminal can be an industrial computer, a control computer or the like.
In the present embodiment, a method for acquiring correction data running on a computer terminal is provided, and fig. 2 is a flowchart of a method for acquiring correction data according to an embodiment of the present application, and as shown in fig. 2, the flowchart includes the following steps:
step S202, obtaining pixel point layout of an LED box body of a light-emitting diode, establishing a pure color picture with the pixel point layout, and projecting the pure color picture to the LED box body for displaying;
the steps can be executed by a control computer and the like, the control computer is connected to the LED box body, and the layout of all pixel points of the LED box body can be obtained, wherein the layout comprises the arrangement of the pixel points, the number of the pixel points and the like. The LED box body can be an LED box body formed by a plurality of LED modules and can also comprise splicing parts between the LED box body and other adjacent LED box bodies.
The solid color picture may be white. Or a solid picture with a brightness of less than 100%.
Step S204, adjusting the brightness of pixel points corresponding to the splicing positions on the pure color picture according to the brightness of the splicing positions of the corresponding LED box bodies in the projection picture;
the pure-color picture is projected onto the LED box body to be checked, so that a tester can better observe bright and dark lines, the tester inputs a brightness adjusting signal, the brightness of pixel points in a certain area can be increased, and then the computer terminal correspondingly executes the brightness.
The brightness adjusting signal can also be automatically generated by a machine, the machine automatically scans and adjusts the bright and dark lines of the current pure-color picture, and the next step is executed after the adjustment is detected to be qualified.
Step S206, generating an adjustment coefficient after the adjustment is completed, and acquiring new correction data after correcting the original correction data according to the adjustment coefficient, wherein the original correction data and the new correction data are both used for adjusting the brightness of pixel points of the LED box.
The adjustment coefficient may be a brightness adjustment range, that is, an adjustment range on the original brightness of a certain pixel point of the LED display screen, and then the adjustment ranges of all the adjusted pixel points on the LED display screen are collected, and the original correction data is corrected according to the adjustment coefficient to determine new correction data.
The original calibration data may be calibration data of factory configuration of the LED box in the related art.
For example, if a new brightness adjustment signal is not received at an interval of 10 minutes, it indicates that the brightness adjustment is qualified, and new correction data can be output.
Through the steps, the pixel point layout of the LED box body of the light-emitting diode is obtained, a pure color picture with the pixel point layout is established, and the pure color picture is projected to the LED box body for display; adjusting the brightness of pixel points corresponding to the splicing positions on the pure color picture according to the brightness of the splicing positions of the corresponding LED box bodies in the projection picture; the method comprises the steps of generating an adjusting coefficient after adjustment is completed, and acquiring new correcting data after original correcting data are corrected according to the adjusting coefficient, wherein the original correcting data and the new correcting data are both used for adjusting the brightness of pixel points of the LED box body.
Optionally, obtain the pixel layout of emitting diode LED box, include: is connected to the LED box body; reading the configuration information of the LED box body, and obtaining pixel point layout, wherein the pixel point layout comprises: pixel point location and pixel point number. By adopting the scheme, the LED box body is completely simulated on the pure-color picture so as to ensure the final adjustment effect.
Optionally, the creating a solid-color picture with the pixel point layout includes: establishing a pure color picture with a surface area larger than that of the LED box body, and marking pixel points corresponding to the splicing position of the LED box body on the pure color picture, wherein the splicing position comprises: the splicing positions among the LED modules and the splicing positions among the LED box bodies. By adopting the scheme, when the surface area is larger than the area of the box body, the splicing prescription can comprise the splicing position between the box bodies, thereby ensuring the adjustment of the bright and dark lines comprehensively.
Optionally, projecting the pure color picture to the LED box for display includes: and projecting the pure color picture to the LED box body for synchronous display, and projecting a moving mouse pointer on the pure color picture, wherein the coordinates of the position of the mouse pointer on the pure color picture are obtained. By adopting the scheme, the projection picture and the control computer are synchronously displayed, and when the position of the bright and dark lines is detected, the mouse cursor can be controlled to move to the position of the bright and dark lines to acquire the coordinates.
Optionally, adjusting the brightness of a pixel point corresponding to the splicing position on the pure color image according to the brightness of the splicing position of the corresponding LED box in the projection image, includes: shooting the marked splicing part in the projection picture through a camera; and when detecting that a first splicing position has a bright line or a dark line in the shot picture, reducing or increasing the brightness of a pixel point corresponding to the first splicing position on the pure color picture. The up or down command may be sent by the camera, or the camera sends the detection result back to the computer, and the computer automatically sends the detection result. By adopting the scheme, the spliced part is marked in advance, and the marked part is directly detected subsequently, so that the method is quick and effective, and the time for detecting bright and dark lines is saved. The time of the tester can be saved, and the tester can concentrate on adjusting splicing parts and other areas which are easy to cause problems.
Optionally, when a bright line or a dark line is detected at a first splicing position in a shot picture, turning down or turning up the brightness of a pixel point corresponding to the first splicing position on the pure color picture, including: selecting two rows and/or two columns of pixel points at the corresponding position of the first splicing position on the pure color picture; and adjusting the brightness of the two rows and/or two columns of pixel points down or up, and synchronously projecting the brightness onto the LED box body.
Optionally, generating the adjustment factor after the adjusting is completed comprises: when the condition that bright and dark lines do not exist at the splicing part is detected in a shooting picture of a camera, the adjustment is determined to be finished; and outputting the adjustment range of the brightness of the pixel points at the splicing position on the pure-color picture as the adjustment coefficient.
Optionally, obtaining new correction data after correcting the original correction data according to the adjustment coefficient includes: aiming at a pixel point, acquiring Red, Green and Blue (Red Green Blue) RGB values in original correction data of the pixel point, wherein one group of RGB values comprises 3 main values and 6 auxiliary values; and adjusting the 3 main numerical values according to 1 time of the adjustment coefficient, and adjusting the 6 auxiliary numerical values according to less than 1 time of the adjustment coefficient. In the related technology, each pixel point has 9 numerical values, and by adopting the scheme, the main numerical value is adjusted according to the adjustment coefficient, and the auxiliary numerical value is adjusted according to the adjustment coefficient less than 1 time, so that the adjustment is quickly and effectively realized, and the auxiliary numerical value with less influence on the pixel point is adjusted in a small scale. The less than 1 adjustment factor may be 0.5 adjustment factor.
Optionally, obtaining new correction data after correcting the original correction data according to the adjustment coefficient includes: acquiring module original correction data of a plurality of LED modules from the LED box body; combining a plurality of the module original correction data to obtain the original correction data of the LED box body; adjusting the original correction data according to the adjustment coefficient to obtain new correction data; and dividing the new correction data into module new correction data of a plurality of LED modules according to the plurality of LED modules.
Optionally, after the original correction data is corrected according to the adjustment coefficient to obtain new correction data, the plurality of module new correction data are correspondingly transmitted to the plurality of LED modules, and the module original correction data are covered. After the original calibration data is covered, the subsequent LED modules automatically use the new calibration data.
According to another embodiment of the present application, there is also provided a method for adjusting bright and dark lines, the method including the steps of:
shooting a picture of a pure-color picture projected onto an LED box body through a camera;
step two, when detecting that bright and dark lines exist at the marked splicing position in the picture, sending an adjusting instruction, wherein the adjusting instruction is used for adjusting the brightness of pixel points at the position, corresponding to the splicing position where the bright and dark lines exist, on the pure color picture;
or when detecting that no bright and dark lines exist at the marked splicing part in the picture, sending an instruction of finishing adjustment.
By adopting the scheme, the splicing position of the LED box body is automatically detected by utilizing the shooting picture of the camera, the adjusting instruction is sent out aiming at the splicing position with the bright and dark lines, the manpower and material resources for adjusting the bright and dark lines are greatly saved, the correction data corresponding to the LED box body can be obtained after the pure-color picture is correspondingly adjusted, and the problem that the correction data for adjusting the brightness and the dark of the LED display screen in the related technology is not accurate enough is solved.
The following description is made in conjunction with another embodiment of the present application.
The method for adjusting the bright and dark lines of the LED display screen in another embodiment of the application can comprise the following steps:
step one, taking the LED box body to be adjusted as a target box body, reading correction data corresponding to all LED pixel points on the target box body, and storing the correction data in a specified directory for controlling a Personal Computer (PC).
And step two, establishing a white picture with the brightness of 80% on the control PC. The number of the pixel points of the white picture is the same as that of the pixel points of the target box.
And step three, marking all LED pixel points at the splicing positions among the LED modules on a white picture of the control PC.
And step four, projecting and displaying the white picture on the target box body so as to clearly see whether bright lines or dark lines appear at the splicing position. If the abnormal display position is found, two adjacent columns (or rows) of LED pixel points corresponding to the abnormal display position are found on a white picture of the control PC and selected by a mouse.
Clicking an upward arrow key for controlling the PC, and increasing the brightness of the selected LED pixel points in the column (or row); and clicking a downward arrow key of the control PC, and reducing the brightness of the selected column (or row) LED pixel points. And (5) observing the target box body while adjusting the brightness until the abnormal display disappears.
And step six, automatically generating a coefficient file after the brightness adjustment is finished. And correcting the original correction data by using the coefficient file so as to obtain new correction data corresponding to all LED pixel points on the target box body.
And seventhly, writing the new correction data into the target box body (covering the original correction data with the new correction data), and then, restarting after power failure, so that the bright lines or the dark lines at the splicing positions between the modules of the target box body can be seen to disappear.
The following is a specific scheme of another embodiment of the present application, which may include:
and selecting an LED display screen to be tested, wherein the LED display screen is formed by splicing a plurality of LED box bodies. Each LED box body is formed by splicing a plurality of LED modules. At the splice location of the LED modules, spliced bright and dark lines may appear. Specifically, if the distance between two adjacent rows (or rows) of LED pixel points at the splicing position is smaller than a preset standard value, a splicing bright line appears; and if the distance between two adjacent columns (or rows) of LED pixel points at the splicing position is larger than a preset standard value, a splicing dark line appears. Two adjacent columns (or rows) of LED pixel points at the splicing position respectively belong to different LED modules; the preset standard value is the minimum pixel point distance of the LED module of the selected model.
And arranging a control PC, and connecting an HDMI (high-definition multimedia interface) of the control PC with an HDMI of the LED display screen to be detected by using a video signal cable. At the moment, information interaction can be carried out between the control PC and the LED display screen to be tested. Assuming that a box body is taken as a research object, the LED box body is called a target box body and is formed by splicing M multiplied by N LED modules, wherein M is the number of rows and N is the number of columns. Firstly, reading correction data corresponding to all LED pixel points on a target box body, and storing the correction data in a specified directory of a control PC. A picture of pure color, preferably white, with a brightness of 80% is then created on the control PC. The number of the pixel points of the white picture is the same as that of the pixel points of the target box.
And marking all LED pixel points at the splicing positions among the LED modules on a white picture of the control PC. At this time, the white picture is divided into M × N areas, and each area corresponds to one LED module of the target box. And then, the target box body is electrified and lightened, and a white picture built on the control PC is projected and displayed on the target box body so as to see whether bright lines or dark lines appear at the splicing positions among the LED modules of the target box body. The light and dark line locations may be collectively referred to as the abnormal display locations. If the abnormal display position is found, two adjacent columns (or rows) of LED pixel points corresponding to the abnormal display position are found on a white picture of the control PC, and any one column (or row) of LED pixel points is selected by a mouse, or the two columns (or rows) of LED pixel points are selected at the same time. Clicking an upward arrow key of a control PC, and increasing the brightness of the selected column (or row) LED pixel points; and clicking a down arrow key of the control PC, and reducing the brightness of the selected column (or row) LED pixel points (the step can be realized by software programming). And (5) observing the target box body while adjusting the brightness until the abnormal display disappears. Wherein, the key can be preset once, and the brightness is changed by 0.1%.
After the brightness adjustment is finished, the software automatically generates a coefficient file, and then the coefficient file is used for correcting the original correction data which is stored in the designated directory of the control PC in advance, so that new correction data corresponding to all the LED pixel points on the target box body are obtained. And writing the new correction data into the target box body, and then restarting after power failure, so that the bright lines or the dark lines at the splicing positions among the modules of the target box body can be seen to disappear.
By adopting the scheme, the following technical effects are realized: a. can effectively adjust bright dark line that appears in LED display screen concatenation position department. b. The correction data of the LED pixel points at the splicing positions can be accurately corrected, so that the working efficiency is improved.
The LED display screen is formed by splicing a plurality of LED box bodies. The bright and dark lines at the splicing positions of the LED boxes can also be adjusted by referring to the method, namely, the brightness of the spliced positions of the LED boxes in the pure-color picture is adjusted.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.
Example two
In this embodiment, a device for acquiring calibration data is further provided, and the device is used to implement the foregoing embodiments and preferred embodiments, and details are not repeated after the description is given. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
According to another embodiment of the present application, there is also provided a correction data acquiring apparatus including:
the first acquisition module is used for acquiring pixel point layout of the LED box body of the light-emitting diode, establishing a pure color picture with the pixel point layout, and projecting the pure color picture to the LED box body for display;
the adjusting module is used for adjusting the brightness of pixel points corresponding to the splicing positions on the pure color picture according to the brightness of the splicing positions of the corresponding LED box bodies in the projection picture;
and the second acquisition module is used for generating an adjustment coefficient after the adjustment is finished, and acquiring new correction data after the original correction data is corrected according to the adjustment coefficient, wherein the original correction data and the new correction data are both used for adjusting the brightness of pixel points of the LED box body.
Through the steps, the pixel point layout of the LED box body of the light-emitting diode is obtained, a pure color picture with the pixel point layout is established, and the pure color picture is projected to the LED box body for display; adjusting the brightness of pixel points corresponding to the splicing positions on the pure color picture according to the brightness of the splicing positions of the corresponding LED box bodies in the projection picture; the method comprises the steps of generating an adjusting coefficient after adjustment is completed, and acquiring new correcting data after original correcting data are corrected according to the adjusting coefficient, wherein the original correcting data and the new correcting data are both used for adjusting the brightness of pixel points of the LED box body.
According to another embodiment of the present application, there is also provided an adjusting apparatus for a bright and dark line, including:
the shooting device is used for shooting the picture of the pure-color picture projected onto the LED box body through the camera;
the indication module is used for sending an adjustment instruction when detecting that bright and dark lines exist at the marked splicing position in the picture, wherein the adjustment instruction is used for adjusting the brightness of pixel points at the position, corresponding to the splicing position where the bright and dark lines exist, on the pure color picture;
or the indication module is further configured to send an instruction of completing adjustment when it is detected that there is no bright or dark line at the marked splicing position in the picture.
By adopting the scheme, the splicing position of the LED box body is automatically detected by utilizing the shooting picture of the camera, the adjusting instruction is sent out aiming at the splicing position with the bright and dark lines, the manpower and material resources for adjusting the bright and dark lines are greatly saved, the correction data corresponding to the LED box body can be obtained after the pure-color picture is correspondingly adjusted, and the problem that the correction data for adjusting the brightness and the dark of the LED display screen in the related technology is not accurate enough is solved.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.
EXAMPLE III
Embodiments of the present application also provide a storage medium. Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:
s1, obtaining pixel point layout of the LED box body of the light-emitting diode, establishing a pure color picture with the pixel point layout, and projecting the pure color picture to the LED box body for displaying;
s2, adjusting the brightness of pixel points corresponding to the splicing positions on the pure color picture according to the brightness of the splicing positions of the corresponding LED box bodies in the projection picture;
and S3, generating an adjusting coefficient after the adjustment is finished, and acquiring new correction data after the original correction data are corrected according to the adjusting coefficient, wherein the original correction data and the new correction data are both used for adjusting the brightness of pixel points of the LED box body.
Optionally, in this embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Embodiments of the present application further provide an electronic device comprising a memory having a computer program stored therein and a processor configured to execute the computer program to perform the steps of any of the above method embodiments.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.
Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:
s1, obtaining pixel point layout of the LED box body of the light-emitting diode, establishing a pure color picture with the pixel point layout, and projecting the pure color picture to the LED box body for displaying;
s2, adjusting the brightness of pixel points corresponding to the splicing positions on the pure color picture according to the brightness of the splicing positions of the corresponding LED box bodies in the projection picture;
and S3, generating an adjusting coefficient after the adjustment is finished, and acquiring new correction data after the original correction data are corrected according to the adjusting coefficient, wherein the original correction data and the new correction data are both used for adjusting the brightness of pixel points of the LED box body.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present application described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present application is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (15)
1. A method for acquiring correction data, comprising:
acquiring pixel point layout of an LED box body of a light-emitting diode, establishing a pure color picture with the pixel point layout, and projecting the pure color picture to the LED box body for display;
adjusting the brightness of pixel points corresponding to the splicing positions on the pure color picture according to the brightness of the splicing positions of the corresponding LED box bodies in the projection picture;
generating an adjustment coefficient after adjustment is completed, and acquiring new correction data after original correction data is corrected according to the adjustment coefficient, wherein the original correction data and the new correction data are both used for adjusting the brightness of pixel points of the LED box body;
wherein, the surface area of pure color picture is greater than the surface area of LED box, the concatenation department includes: the LED box comprises LED modules and an LED box body, wherein the LED modules are arranged in the LED box body, and the LED modules are arranged at the splicing positions among the LED modules and the splicing positions among the LED box body.
2. The method of claim 1, wherein obtaining a pixel layout of a Light Emitting Diode (LED) bin comprises:
is connected to the LED box body;
reading the configuration information of the LED box body, and obtaining pixel point layout, wherein the pixel point layout comprises: pixel point location and pixel point number.
3. The method of claim 1, wherein creating a solid color picture with the pixel dot layout comprises:
and marking pixel points corresponding to the splicing positions of the LED box bodies on the pure-color picture.
4. The method of claim 1, wherein projecting the solid picture to the LED box for display comprises:
and projecting the pure color picture to the LED box body for synchronous display, and projecting a moving mouse pointer on the pure color picture, wherein the coordinates of the position of the mouse pointer on the pure color picture are obtained.
5. The method of claim 1, wherein adjusting the brightness of a pixel point on the pure color image corresponding to the splice location according to the brightness of the splice location of the corresponding LED box in the projection image comprises:
shooting the marked splicing part in the projection picture through a camera;
and when detecting that a first splicing position has a bright line or a dark line in the shot picture, reducing or increasing the brightness of a pixel point corresponding to the first splicing position on the pure color picture.
6. The method of claim 5, wherein when a bright line or a dark line is detected at a first joint in the captured image, adjusting the brightness of a pixel point corresponding to the first joint on the pure color image down or up comprises:
selecting two rows and/or two columns of pixel points at the corresponding position of the first splicing position on the pure color picture;
and adjusting the brightness of the two rows and/or two columns of pixel points down or up, and synchronously projecting the brightness onto the LED box body.
7. The method of claim 5, wherein generating an adjustment factor after the adjusting is complete comprises:
when the condition that bright and dark lines do not exist at the splicing part is detected in a shooting picture of a camera, the adjustment is determined to be finished;
and outputting the adjustment range of the brightness of the pixel points at the splicing position on the pure-color picture as the adjustment coefficient.
8. The method of claim 1, wherein obtaining new correction data after correcting the original correction data according to the adjustment factor comprises:
aiming at a pixel point, acquiring red, green and blue RGB values in original correction data of the pixel point, wherein one group of RGB values comprises 3 main values and 6 auxiliary values;
and adjusting the 3 main numerical values according to 1 time of the adjustment coefficient, and adjusting the 6 auxiliary numerical values according to less than 1 time of the adjustment coefficient.
9. The method of claim 1, wherein obtaining new correction data after correcting the original correction data according to the adjustment factor comprises:
acquiring module original correction data of a plurality of LED modules from the LED box body;
combining a plurality of the module original correction data to obtain the original correction data of the LED box body;
adjusting the original correction data according to the adjustment coefficient to obtain new correction data;
and dividing the new correction data into module new correction data of a plurality of LED modules according to the plurality of LED modules.
10. The method of claim 9, wherein adjusting said original correction data according to said adjustment factor comprises, after acquiring new correction data:
and correspondingly transmitting the plurality of the module new correction data to the plurality of LED modules, and covering the module original correction data.
11. A method for adjusting bright and dark lines is characterized by comprising the following steps:
shooting a picture of a pure-color picture projected onto the LED box body through a camera;
when detecting that bright and dark lines exist at the marked splicing position in the picture, sending an adjusting instruction, wherein the adjusting instruction is used for adjusting the brightness of pixel points at the position, corresponding to the splicing position where the bright and dark lines exist, on the pure color picture;
or when detecting that no bright and dark lines exist at the marked splicing part in the picture, sending an instruction of finishing adjustment;
wherein, the surface area of pure color picture is greater than the surface area of LED box, the concatenation department includes: the LED box comprises LED modules and an LED box body, wherein the LED modules are arranged in the LED box body, and the LED modules are arranged at the splicing positions among the LED modules and the splicing positions among the LED box body.
12. An apparatus for acquiring correction data, comprising:
the first acquisition module is used for acquiring pixel point layout of the LED box body of the light-emitting diode, establishing a pure color picture with the pixel point layout, and projecting the pure color picture to the LED box body for display;
the adjusting module is used for adjusting the brightness of pixel points corresponding to the splicing positions on the pure color picture according to the brightness of the splicing positions of the corresponding LED box bodies in the projection picture;
the second acquisition module is used for generating an adjustment coefficient after adjustment is completed, and acquiring new correction data after the original correction data is corrected according to the adjustment coefficient, wherein the original correction data and the new correction data are both used for adjusting the brightness of pixel points of the LED box body;
wherein, the surface area of pure color picture is greater than the surface area of LED box, the concatenation department includes: the LED box comprises LED modules and an LED box body, wherein the LED modules are arranged in the LED box body, and the LED modules are arranged at the splicing positions among the LED modules and the splicing positions among the LED box body.
13. An adjusting device for bright and dark lines, comprising:
the shooting device is used for shooting the picture of the pure-color picture projected onto the LED box body through the camera;
the indication module is used for sending an adjustment instruction when detecting that bright and dark lines exist at the marked splicing position in the picture, wherein the adjustment instruction is used for adjusting the brightness of pixel points at the position, corresponding to the splicing position where the bright and dark lines exist, on the pure color picture;
or the indication module is further configured to send an instruction of completing adjustment when detecting that there is no bright or dark line at the marked splicing position in the picture;
wherein, the surface area of pure color picture is greater than the surface area of LED box, the concatenation department includes: the LED box comprises LED modules and an LED box body, wherein the LED modules are arranged in the LED box body, and the LED modules are arranged at the splicing positions among the LED modules and the splicing positions among the LED box body.
14. A storage medium, in which a computer program is stored, wherein the computer program is arranged to perform the method of any of claims 1 to 11 when executed.
15. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and wherein the processor is arranged to execute the computer program to perform the method of any of claims 1 to 11.
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| CN112492238A (en) * | 2019-09-11 | 2021-03-12 | 西安诺瓦星云科技股份有限公司 | Method for adjusting bright and dark lines of display screen and LED display screen |
| CN112631532A (en) * | 2019-10-09 | 2021-04-09 | 西安诺瓦星云科技股份有限公司 | Bright and dark line adjusting method, device and system and computer storage medium |
| CN116391218A (en) * | 2020-04-15 | 2023-07-04 | 西安诺瓦星云科技股份有限公司 | Correction method and device for spliced bright and dark lines |
| CN111951696B (en) * | 2020-07-30 | 2022-10-25 | 深圳市艾比森光电股份有限公司 | Correction method and related device for LED display screen |
| JP2022545991A (en) | 2020-07-30 | 2022-11-02 | 深▲せん▼市艾比森光電股▲ふん▼有限公司 | LED display correction method and related device |
| CN116386521A (en) * | 2023-05-31 | 2023-07-04 | 深圳市奥拓电子股份有限公司 | Four-color display bright and dark line correction method and device and electronic equipment |
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| CN103413526B (en) * | 2013-08-19 | 2015-08-05 | 西安诺瓦电子科技有限公司 | The correction method for LED lamp panel of LED display |
| CN104916256B (en) * | 2015-06-25 | 2017-09-05 | 西安诺瓦电子科技有限公司 | Splice bright concealed wire modification method |
| CN104915922B (en) * | 2015-06-25 | 2018-01-12 | 西安诺瓦电子科技有限公司 | Splice bright concealed wire modification method |
| CN104966493B (en) * | 2015-07-31 | 2017-09-05 | 西安诺瓦电子科技有限公司 | Splice bright concealed wire compensation method |
| CN105321467B (en) * | 2015-11-12 | 2018-11-30 | 西安诺瓦电子科技有限公司 | LED display control system receives card and splices bright concealed wire modification method |
| CN108630142A (en) * | 2018-05-13 | 2018-10-09 | 上海诣阔软件有限公司 | A kind of correction LED display piece method |
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