CN114596809B - Display screen brightness correction method and device based on mobile terminal - Google Patents
Display screen brightness correction method and device based on mobile terminal Download PDFInfo
- Publication number
- CN114596809B CN114596809B CN202011306006.3A CN202011306006A CN114596809B CN 114596809 B CN114596809 B CN 114596809B CN 202011306006 A CN202011306006 A CN 202011306006A CN 114596809 B CN114596809 B CN 114596809B
- Authority
- CN
- China
- Prior art keywords
- data
- corrected
- brightness
- correction
- area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012937 correction Methods 0.000 title claims abstract description 224
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000010295 mobile communication Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 23
- 238000010586 diagram Methods 0.000 description 12
- 238000004364 calculation method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000000638 solvent extraction Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—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]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention relates to a display screen brightness correction method and device based on a mobile terminal. The correction method includes, for example: controlling a region to be corrected of a display screen connected with the mobile terminal to display a preset picture through the mobile terminal; acquiring a first correction image of the region to be corrected when the preset picture is displayed through the mobile terminal; acquiring reference luminance and chrominance data; obtaining a brightness correction coefficient of the area to be corrected according to the first correction image and the reference brightness data; and sending the brightness correction coefficient to the display screen to correct the region to be corrected. The invention eliminates the brightness difference of the display screen based on the adjustment of the mobile terminal, so that the display screen achieves the consistent brightness, thereby improving the correction efficiency and the correction effect.
Description
Technical Field
The invention relates to the technical field of LED display correction, in particular to a display screen brightness and color correction method based on a mobile terminal and a display screen brightness and color correction device based on the mobile terminal.
Background
Display screens such as LED display screens are widely applied to places such as city squares, business centers and the like due to the advantages of bright color, high visibility, low power consumption, environmental protection, energy conservation and the like, however, the problem of inconsistent human eye vision exists in the brightness of the LED display screens due to the limited LED production level at present. The root cause of this non-uniformity in luminance is that the LEDs themselves, e.g. LED lamps of the same production lot, may have a 50% variation in luminance and a 15-20 nm variation in wavelength (chromaticity), which is very noticeable for human vision. Therefore, the problem of LED display screens with the same grade in different batches is more remarkable. The solution for LED display screens with the same grade in different batches is usually qualitative judgment of human eyes, different target values are set for a plurality of times, correction coefficients of all LED lamp points in each area are regenerated by using a similar existing correction means, however, the efficiency is relatively low, the process is complicated, and in addition, the correction based on human eyes is inconsistent in correction effect.
In view of the foregoing, there is a need for a simple, easy to operate, and efficient method for correcting brightness and color of a display screen, so that brightness and color of an LED display screen are consistent, even a display screen including different batches of display units.
Disclosure of Invention
Therefore, in order to overcome at least part of the defects or drawbacks of the prior art, the invention provides a display screen brightness correction method based on a mobile terminal and a display screen brightness correction device based on the mobile terminal.
Specifically, the display screen brightness correction method based on the mobile terminal provided by the embodiment of the invention comprises the following steps: controlling a region to be corrected of a display screen connected with the mobile terminal to display a preset picture through the mobile terminal; acquiring a first correction image of the region to be corrected when the preset picture is displayed through the mobile terminal; acquiring reference luminance and chrominance data; obtaining a brightness correction coefficient of the area to be corrected according to the first correction image and the reference brightness data; and sending the brightness correction coefficient to the display screen to correct the region to be corrected.
According to the technical scheme, the brightness and the chrominance of the display screen are corrected by adopting the mobile terminal which is convenient to control and carry, so that the problems that in the prior art, the correction efficiency of human eyes is low, and correction effects of different people and even the same person are inconsistent are solved, and the correction efficiency and the correction effect are improved.
In one embodiment of the present invention, the acquiring the reference brightness color data includes: the mobile terminal controls a reference area of the display screen to display the preset picture, wherein the area to be corrected and the reference area are different areas of the display screen, and display units of the reference area are display units with different batches of display units of the area to be corrected; collecting a second correction image of the reference area when the preset picture is displayed through the mobile terminal; and determining the reference luminance and chrominance data based on the second corrected image.
In one embodiment of the present invention, the acquiring the reference brightness color data specifically includes: and receiving externally input brightness and color data as the reference brightness and color data.
In one embodiment of the present invention, the obtaining the luminance correction coefficient of the region to be corrected from the first corrected image and the reference luminance data includes: obtaining initial brightness data of the area to be corrected based on the first correction image; and determining the luminance correction coefficient of the region to be corrected according to the reference luminance data and the initial luminance data of the region to be corrected.
In one embodiment of the present invention, the obtaining the luminance correction coefficient of the region to be corrected from the first corrected image and the reference luminance data includes: transmitting the first correction image to a data operation device, so that the data operation device obtains initial brightness data of the area to be corrected based on the first correction image, and determines the brightness correction coefficient of the area to be corrected according to the reference brightness data and the initial brightness data of the area to be corrected; and receiving the luminance-chrominance correction coefficient from the data-operation device.
In one embodiment of the invention, the display screen is connected to the mobile terminal through a wireless network or a mobile communication network.
On the other hand, the display screen brightness correction device based on the mobile terminal provided by the embodiment of the invention comprises: the first picture display module is used for controlling a to-be-corrected area of a display screen connected with the mobile terminal to display a preset picture through the mobile terminal; the first image acquisition module is used for acquiring a first correction image of the region to be corrected when the preset picture is displayed through the mobile terminal; the reference data acquisition module is used for acquiring reference luminance and chrominance data; a target correction data acquisition module, configured to obtain a luminance correction coefficient of the area to be corrected according to the first correction image and the reference luminance data; and the target correction data transmitting module is used for transmitting the brightness correction coefficient to the display screen to correct the area to be corrected.
In one embodiment of the present invention, the reference data acquisition module includes: the second picture display unit is used for controlling a reference area of the display screen to display the preset picture through the mobile terminal, wherein the area to be corrected and the reference area are different areas of the display screen, and the display units of the reference area are different display units from the display unit batch of the area to be corrected; the second image acquisition unit is used for acquiring a second correction image of the reference area when the preset picture is displayed through the mobile terminal; and a reference data determination unit configured to determine the reference luminance and chrominance data based on the second correction image.
In one embodiment of the present invention, the reference data acquisition module further includes: and a reference data receiving unit for receiving externally input luminance and chrominance data as the reference luminance and chrominance data.
In one embodiment of the present invention, the target correction data acquisition module includes: an initial data determining unit configured to obtain initial luminance and chrominance data of the region to be corrected based on the first corrected image; and a target correction data calculation unit configured to determine the luminance correction coefficient of the region to be corrected based on the reference luminance data and the initial luminance data of the region to be corrected.
In one embodiment of the present invention, the target correction data acquisition module includes: a corrected image transmitting unit; the data computing device is used for obtaining initial brightness data of the area to be corrected based on the first correction image and determining the brightness correction coefficient of the area to be corrected according to the reference brightness data and the initial brightness data of the area to be corrected; and a target correction data receiving unit for receiving the luminance correction coefficient transmitted from the data operation device.
Therefore, the embodiment of the invention realizes the brightness and color correction of the display screen by adopting the mobile terminal which is convenient to operate and carry, so as to solve the problems that the correction efficiency of human eyes is low and the correction effects of different people and even the same person are inconsistent in the prior art, and improve the correction efficiency and the correction effect. In addition, the mobile terminal is used for splicing different batches of display units in the display screen to form different areas, respectively carrying out image acquisition and analysis to obtain brightness and color data corresponding to the different areas, calculating brightness and color adjustment coefficients according to the brightness and color data, and finally adjusting brightness and color of the area to be corrected according to the brightness and color adjustment coefficients so as to finish brightness and color correction, thereby solving the requirement that the adjustment of the display units in multiple batches adopts a human eye correction mode in the prior art, correcting the display units with the same standard, avoiding the problem of inconsistent effects when different people even the same person correct, and improving correction efficiency and correction effect. Furthermore, the brightness and color data input from the outside are received as the reference brightness and color data to correct the area to be corrected, so that the workload of the mobile terminal for carrying out the operation of the reference brightness and color data is reduced, the reference brightness and color data can be set according to the user requirement, and the flexibility and the user experience of the correction work are improved. In addition, the special data operation equipment is arranged to further lighten the operation workload of the terminal equipment for carrying out initial brightness data and correcting brightness coefficients, and further improves the real-time user and experience of the correction by adopting the terminal equipment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a mobile terminal-based display screen brightness correction method according to a first embodiment of the present invention.
Fig. 2 is a detailed flowchart of step S15 in fig. 1.
Fig. 3A is a detailed flowchart of step S17 in fig. 1.
Fig. 3B is another detailed flowchart of step S17 in fig. 1.
Fig. 4A is a schematic structural diagram of a display brightness correction system according to a first embodiment of the present invention.
Fig. 4B is a schematic structural diagram of another display brightness correction system according to the first embodiment of the present invention.
Fig. 4C is a schematic view of a display screen.
Fig. 4D is a schematic structural diagram of a brightness correction system for a display screen according to a first embodiment of the present invention.
Fig. 4E is a schematic structural diagram of a brightness correction system for a display screen according to a first embodiment of the present invention.
Fig. 5 is a schematic block diagram of a brightness correction device of a display device based on a mobile terminal according to a second embodiment of the present invention.
Fig. 6A is a schematic block diagram of a reference data acquisition module in fig. 5.
Fig. 6B is a block diagram of another reference data acquisition module in fig. 5.
Fig. 7A is a block diagram of a target correction data acquisition module in fig. 5.
Fig. 7B is a block diagram of another target correction data acquisition module in fig. 5.
Fig. 8 is a schematic structural diagram of a display brightness correction system according to a third embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a computer readable storage medium according to a fourth embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
[ first embodiment ]
Fig. 1 is a flowchart illustrating steps of a display screen brightness correction method based on a mobile terminal according to a first embodiment of the present invention. The display screen brightness correction method of the present embodiment is suitable for application of a display screen such as an LED display screen or the like. The display screen brightness correction method based on the mobile terminal provided by the invention realizes intelligent correction mainly by adopting the mobile terminal equipment, so that the problems that the correction efficiency is low by adopting human eyes and the correction effects of different people and even the same person are inconsistent in the prior art are solved, and the correction efficiency and the correction effect are improved. Typically, a mobile terminal herein may for example comprise a computer device which may be used in motion and which has image acquisition means such as a camera, broadly speaking a cell phone, a notebook, a tablet or the like. Specifically, the correction method may be used for an LED display screen including a plurality of splice units, and the correction method may be performed after the splice units are spliced into the LED display screen or may be performed before the splice units are spliced into the LED display screen. The plurality of splicing units may be a plurality of LED display units (including one or more LED light panels) for being spliced into an LED display screen, or a plurality of LED light panels for being spliced into an LED display unit, where brightness differences exist between the splicing units, so the brightness correction method for a display screen based on a mobile terminal in this embodiment may also be used to eliminate or compensate for brightness differences existing between the splicing units. In short, the display screen brightness correction method based on the mobile terminal of the embodiment is mainly used for solving the problem that the correction effect is inconsistent for different people, even the same person, with low human eye correction efficiency, so as to be applied to the elimination or compensation of brightness difference between areas.
Specifically, as shown in fig. 1, the display screen brightness correction method based on the mobile terminal of the present embodiment includes, for example:
s11: controlling a region to be corrected of a display screen connected with the mobile terminal to display a preset picture through the mobile terminal;
s13: acquiring a first correction image of the region to be corrected when the preset picture is displayed through the mobile terminal;
s15: acquiring reference luminance and chrominance data;
s17: obtaining a brightness correction coefficient of the area to be corrected according to the first correction image and the reference brightness data; and
s19: and sending the brightness correction coefficient to the display screen to correct the area to be corrected.
Therefore, the brightness and the chrominance of the display screen can be corrected by adopting the mobile terminal which is convenient to operate and control and convenient to carry, so that the problems that in the prior art, the correction efficiency of human eyes is low, and the correction effects of different people and even the same person are inconsistent are solved, and the correction efficiency and the correction effect are improved.
In addition, in another embodiment of the present invention, as shown in fig. 2, step S15 includes, for example:
s151: the mobile terminal controls a reference area of the display screen to display the preset picture, wherein the area to be corrected and the reference area are different areas of the display screen, and display units of the reference area are display units with different batches of display units of the area to be corrected;
s153: collecting a second correction image of the reference area when the preset picture is displayed through the mobile terminal; and
s155: the reference luminance and chrominance data is determined based on the second corrected image.
Therefore, the mobile terminal can be used for respectively carrying out image acquisition on different areas formed by splicing different batches of display units in the display screen, then analyzing to obtain brightness and chroma adjustment coefficients corresponding to the different areas, and finally adjusting the brightness and chroma of the area to be corrected according to the brightness and chroma adjustment coefficients so as to finish brightness and chroma correction, thereby solving the requirement that the adjustment of the display units in multiple batches adopts a human eye correction mode in the prior art, correcting the display units with the same standard, avoiding the problem of inconsistent effect when different people even the same person are corrected, and improving the correction efficiency and correction effect.
In addition, step S15 may specifically be: and receiving externally input brightness and color data as the reference brightness and color data. The brightness and color data input from the outside are received as the reference brightness and color data to correct the area to be corrected, so that the workload of the mobile terminal for carrying out the operation of the reference brightness and color data is reduced, the reference brightness and color data can be set according to the user requirement, and the flexibility and the user experience of the correction work are improved.
Furthermore, in yet another embodiment of the present invention, as shown in fig. 3A, step S17 may include, for example:
s171a: obtaining initial brightness data of the area to be corrected based on the first correction image; and
s173a: and determining the brightness correction coefficient of the area to be corrected according to the reference brightness data and the initial brightness data of the area to be corrected.
It should be noted that, in step S17, the initial luminance and chrominance data of the area to be corrected is obtained according to the first corrected image, and the corrected luminance and chrominance coefficient is calculated according to the reference luminance and chrominance data and the initial luminance and chrominance data, which may be implemented by a method commonly used in the prior art, and the embodiments of the present invention are not repeated. Step S17 may be performed on the mobile terminal, but may also be performed on other devices.
Further, in still another embodiment of the present invention, as shown in fig. 3B, step S17 may include, for example:
s171b: transmitting the first correction image to a data operation device, so that the data operation device obtains initial brightness data of the area to be corrected based on the first correction image, and determines the brightness correction coefficient of the area to be corrected according to the reference brightness data and the initial brightness data of the area to be corrected; and
s173b: the luminance-chrominance correction coefficients are received from the data-operation device.
Therefore, the special data operation equipment such as a cloud server can be arranged to further reduce the operation workload of the terminal equipment for carrying out initial luminance and chrominance data and correcting luminance and chrominance coefficients, and the real-time user and experience of correcting by the terminal equipment are improved.
In order to facilitate understanding of the present invention, the following describes in detail the steps of the mobile terminal-based display screen brightness correction method according to the embodiment of the present invention with reference to fig. 4A to 4D.
In view of the above, in order to achieve normal display of a display screen, such as an LED display screen, it is generally required to connect and configure the display screen and a terminal device, and even to jointly achieve preset picture processing, display, and the like through connection of other devices. For example, as shown in fig. 4A, a schematic diagram of a display brightness correction system 10 according to an embodiment of the invention is shown. The display screen brightness correction system 10 includes, for example: a display screen 110, a mobile terminal 120, an image acquisition device 121, and even a display controller 130. The display 110 is connected to the display controller 130, and the mobile terminal is connected to the display controller 130 through various modes such as wired, wireless, and network. The graphic acquisition device 121 is connected to the mobile terminal 120. Of course, as shown in fig. 4B, the image capturing device 121 may be disposed on the mobile terminal 120, for example, a camera of a smart phone, which is not limited thereto. In this way, the correction convenience can be further improved.
The display screen 110 may be, for example, an RGB full-color LED display screen formed by splicing a plurality of LED display units, which is not limited in the embodiment of the present invention. Typically, the display 110 may include, for example, a display control card and a display light panel coupled to the display control card. As shown in fig. 4C, the display screen 110 includes an area to be corrected 111, a reference area 113. The to-be-corrected area 111 and the reference area 113 are different areas of the display screen, such as adjacent areas, and the display units of the reference area 113 are different display units from the display unit batch of the to-be-corrected area 111. For example, the display unit of the reference area 113 is the display unit of lot 1, and the display unit of the area to be corrected 111 is the display unit of lot 2.
The mobile terminal 120 may be provided with software for display correction or APP, for example. The mobile terminal 120 is connected to the display controller 130, for example, through WIFI, a mobile communication network, a wireless router, a wired cable, etc., so that the mobile terminal 120 controls the display controller 130 to send a preset image to the display screen 110 for display, so as to be collected by the image collecting device 121.
The image capturing device 121 may be, for example, an industrial camera, or a video camera matched with the mobile terminal 120, for capturing a corrected image of a screen body when the display screen 110 displays a preset screen.
The display controller 130 (also referred to as a transmitting card) herein may include, for example, transmitting card logic of a microcontroller and a programmable logic device, which is mainly used for performing image processing on a video source signal, converting a data format, and transmitting converted data to the display screen 110 for display, where the display controller 130 may have a function of accessing a mobile communication network, a router, or be provided with a WIFI module, or be provided with a wired communication interface of the mobile terminal 120, such as a TYPE-C interface, etc., to implement connection with the mobile terminal 120, so as to receive a preset screen display instruction sent by the mobile terminal 120.
Next, taking the architecture of the brightness correction system 10 of fig. 4A as an example, the implementation process of the display screen brightness correction method based on the mobile terminal provided by the present invention is described.
First, the devices in the system are connected. The mobile terminal 120 is connected to the display controller 130, for example, through WIFI, and the display controller 130 is connected to the display screen 110, and aligns the image capturing device 121 to a side of the display screen 110 for displaying images.
Then, parameters of the image pickup device 121 such as a focal length, an exposure time, and the like are adjusted to ensure the quality of the corrected image picked up by the image pickup device 121.
Thereafter, the mobile terminal 120 controls the display screen 110 to display a preset screen, for example, in the region to be corrected 111, in response to a user operation, for example, an operation performed by the user on the brightness correction APP on the mobile terminal 120. The preset frames may be, for example, red frames, green frames, blue frames, white frames, or other single-color frames, but the invention is not limited thereto.
Next, the mobile terminal 120 acquires, in response to the user operation 121, a display screen image when the region to be corrected 111 displays a preset screen, for example, a red monochrome screen, as a first correction image, wherein the first correction image includes an image of the region to be corrected for subsequent acquisition of luminance and chrominance data of the region to be corrected. Thereafter, the image pickup device 121 transfers the picked-up first corrected image to the mobile terminal 120. It should be noted that the display 110 displays a preset screen, which may include a color screen, such as a red screen, or may include a set of color screen sequences, such as a red screen, a blue screen, a green screen, and so on. Or other combinations of other pictures for correcting the brightness of the display 110 for different colors. Thus, the first corrected image acquired here may be an image including one single color screen or an image including a plurality of different color screens.
Then, the mobile terminal 120 acquires the reference luminance and chrominance data. The reference luminance level data here may be used, for example, for data of a target luminance level set to the region to be corrected 111, that is, luminance level data that the region to be corrected 111 eventually needs to reach. Specifically, the mobile terminal 120 controls the reference area 113 of the display screen to display the preset screen; 121, acquiring a second correction image when the reference area 113 displays the preset picture; the mobile terminal 120 then determines the reference luminance and chrominance data based on the second corrected image. While obtaining luminance and chrominance data by correcting an image is a well-established technique, for example, the specific steps may be as follows: firstly, performing point positioning on the second correction image, and secondly, extracting brightness and chromaticity data of the LED lamp points located in the reference area on the correction image point by point, which are not described herein.
Next, the mobile terminal 120 obtains a luminance correction coefficient of the region to be corrected from the obtained first correction image and the reference luminance data. Specifically, the mobile terminal 120 obtains the initial luminance and chrominance data of the region to be corrected based on the first correction image, and this process is the same as the method for obtaining the reference luminance and chrominance data by the mobile terminal 120 based on the second correction image, which is not described herein. Then, the mobile terminal 120 determines the luminance correction coefficient of the region to be corrected according to the reference luminance data and the initial luminance data of the region to be corrected. Specifically, the mobile terminal 120 calculates, for example, by division, the reference luminance and chrominance data of each lamp and the initial luminance and chrominance data of each lamp in the area to be corrected to obtain a ratio of the two, that is, to obtain a luminance and chrominance correction coefficient of each lamp. The luminance correction coefficient of the region 111 to be corrected can be obtained from the luminance correction coefficient of each lamp. The luminance correction coefficient obtained according to the reference luminance data and the initial luminance data of the area to be corrected may be implemented by other methods in the art, which is not limited herein.
Finally, the mobile terminal 120 transmits the obtained brightness correction coefficient to the display screen to correct the region to be corrected of the display screen 110, for example, in response to a user operation.
In this way, the brightness correction of the display screen 110 by the mobile terminal 120 is realized, the correction efficiency is improved, the problem of different brightness effects of the display screen caused by different correction personnel is also reduced, and in addition, the brightness correction of the to-be-corrected area 111 and the reference area 113 formed by splicing different batches of display units by the mobile terminal 120 is also realized, so that the brightness of the to-be-corrected area 111 and the reference area 113 is consistent, and the brightness of the display units in different batches in splicing is always corrected.
It should be noted that, in the foregoing steps of displaying the preset image and collecting the corrected image, the mobile terminal 120 may also control the to-be-corrected area 111 and the reference area 113 to display the preset image with the same color, and control the image collecting device 121 to collect the corrected image including the to-be-corrected area 111 and the reference area 113, and extract the initial luminance and chrominance data of the to-be-corrected area 111 and the reference luminance and chrominance data of the reference area 113 from the corrected image, respectively, and finally calculate the luminance and chrominance correction data according to the initial luminance and chrominance data and the reference luminance and chrominance data. Therefore, the brightness correction of the display screen can be more efficient and quicker. Furthermore, the display 110 may further include other areas composed of the third batch of display units, and the mobile terminal 120 may also perform brightness correction on other areas composed of the third batch of display units according to the same steps as the foregoing method, where the brightness correction may be performed with reference to the reference brightness data of the area 112, or may perform correction with reference to the corrected brightness data of the corrected area 111, so as to implement brightness correction of the display units in multiple batches, so that brightness of the display units in multiple batches is consistent, and display effect of the display is improved.
In addition, in order to reduce the workload of the brightness and color data calculation of the mobile terminal 120 and improve the real-time performance of brightness and color correction, the mobile terminal 120 may also receive the brightness and color data input from an external device as the reference brightness and color data. The external device here may be, for example, a host computer or a display controller 130, or even a display control card of the display screen 110.
Further, as shown in FIG. 4C, the display screen brightness correction system 10 may also include a data computing device 140. The data computing device 140 is, for example, a cloud server. The data computing device 140 is connected to the mobile terminal 120, for example, via a network. After the image collecting device 121 collects the first corrected image, the mobile terminal 120121 sends the corrected image to the data computing device 140, so that the computing device 140 obtains initial luminance and chrominance data of the to-be-corrected area based on the first corrected image, determines the luminance and chrominance correction coefficient of the to-be-corrected area according to the reference luminance and chrominance data and the initial luminance and chrominance data of the to-be-corrected area, and finally sends the obtained luminance and chrominance correction coefficient to the terminal device 120.
Of course, in other embodiments, the calculation of the luminance and chrominance data of the reference area 113 may be calculated by the data calculation device 140, so that the workload of the mobile terminal 120 may be further reduced, and the real-time performance of the correction operation may be improved.
In other embodiments of the present invention, as shown in fig. 4D, the display brightness correction system 10 may not include the display controller 130, that is, the mobile terminal 120 is directly connected to the display control card of the display screen 110 through a wired or wireless manner, a mobile communication network, or the like, that is, the display control card is provided with a wireless connection interface such as a WIFI module, or a wired connection interface such as a serial port, or the like. Therefore, compared with the existing display screen brightness correction system, the correction hardware architecture is simplified, the equipment cost is saved, brightness correction work is enabled to be more convenient and efficient, and the user experience is improved.
In summary, the embodiment of the invention realizes the brightness and chrominance correction of the display screen by adopting the mobile terminal which is convenient to operate and carry, so as to solve the problems that the correction efficiency of human eyes is low and the correction effects of different people and even the same person are inconsistent in the prior art, and improve the correction efficiency and the correction effect. In addition, the mobile terminal is used for splicing different batches of display units in the display screen to form different areas, respectively carrying out image acquisition and analysis to obtain brightness and color data corresponding to the different areas, calculating brightness and color adjustment coefficients according to the brightness and color data, and finally adjusting brightness and color of the area to be corrected according to the brightness and color adjustment coefficients so as to finish brightness and color correction, thereby solving the requirement that the adjustment of the display units in multiple batches adopts a human eye correction mode in the prior art, correcting the display units with the same standard, avoiding the problem that effects are inconsistent when different people even the same person are corrected, and improving correction efficiency and correction effect. Furthermore, the brightness and color data input from the outside are received as the reference brightness and color data to correct the area to be corrected, so that the workload of the mobile terminal for carrying out the operation of the reference brightness and color data is reduced, the reference brightness and color data can be set according to the user requirement, and the flexibility and the user experience of the correction work are improved. In addition, the special data operation equipment is arranged to further lighten the operation workload of the terminal equipment for carrying out initial brightness data and correcting brightness coefficients, and further improves the real-time user and experience of the correction by adopting the terminal equipment.
[ second embodiment ]
As shown in fig. 5, a second embodiment of the present invention provides a display screen brightness correction device 400 based on a mobile terminal. The display screen brightness correction device 400 includes, for example: a first picture display module 410, a first image acquisition module 430, a reference data acquisition module 450, a target correction data acquisition module 470, and a target correction data transmission module 490.
A first screen display module 410, configured to control, by the mobile terminal, a to-be-corrected area of a display screen connected to the mobile terminal to display a preset screen;
a first image acquisition module 430, configured to acquire, by using the mobile terminal, a first correction image when the to-be-corrected area displays the preset screen;
a reference data acquisition module 450 for acquiring reference luminance and chrominance data;
a target correction data obtaining module 470, configured to obtain a luminance correction coefficient of the area to be corrected according to the first correction image and the reference luminance data; and
and the target correction data transmitting module 490 is configured to transmit the brightness correction coefficient to the display screen to correct the region to be corrected.
Further, as shown in fig. 6A, the reference data acquisition module 450 includes, for example:
a second screen display unit 451, configured to control, by the mobile terminal, a reference area of the display screen to display the preset screen, where the area to be corrected and the reference area are different areas of the display screen, and a display unit of the reference area is a display unit having a lot different from that of a display unit of the area to be corrected;
a second image acquisition unit 453 configured to acquire, by the mobile terminal, a second correction image when the reference area displays the preset screen; and
a reference data determination unit 455 for determining the reference luminance and chrominance data based on the second corrected image.
Still further, as shown in fig. 6B, the reference data acquisition module 450 may further include:
and a reference data receiving unit 457 for receiving externally input luminance and color data as the reference luminance and color data.
Further, as shown in fig. 7A, the target correction data acquisition module 470 includes, for example:
an initial data determination unit 471a for obtaining initial luminance and chrominance data of the area to be corrected based on the first corrected image; and
a target correction data determining unit 473a for determining the luminance correction coefficient of the region to be corrected based on the reference luminance data and the initial luminance data of the region to be corrected.
In other embodiments of the present invention, as shown in fig. 7B, the target correction data acquisition module 470 includes, for example:
a corrected image transmission unit 471b; the data computing device is used for obtaining initial brightness data of the area to be corrected based on the first correction image and determining the brightness correction coefficient of the area to be corrected according to the reference brightness data and the initial brightness data of the area to be corrected; and
a target correction data determination unit 473b for receiving the luminance-color correction coefficients from the data operation device.
The specific working process and technical effects between the modules in the display screen brightness correction device 400 in this embodiment are referred to the description of the foregoing first embodiment, and will not be repeated here.
[ third embodiment ]
As shown in fig. 8, a third embodiment of the present invention provides a display screen brightness correction system 500. The display screen brightness correction system 500 includes, for example, a memory 510 and a processor 530 coupled to the memory 510. The memory 510 may be, for example, a non-volatile memory, on which the computer program 511 is stored. The processor 530 may be, for example, an embedded processor. The processor 530 executes the display screen brightness correction method in the aforementioned first embodiment when running the computer program 511.
The specific operation and technical effects of the display screen brightness correction system 500 in this embodiment are described with reference to the foregoing first embodiment.
[ fourth embodiment ]
As shown in fig. 9, a fourth embodiment of the present invention provides a computer-readable storage medium such as computer-readable storage medium 600. The computer-readable storage medium 600 is, for example, a nonvolatile memory, which is, for example: magnetic media (e.g., hard disk, floppy disk, and magnetic strips), optical media (e.g., CDROM disks and DVDs), magneto-optical media (e.g., optical disks), and hardware devices that are specially constructed for storing and performing computer-executable instructions (e.g., read-only memory (ROM), random Access Memory (RAM), flash memory, etc.). Computer-readable storage medium 600 has stored thereon computer-executable instructions 610. The computer-readable storage medium 600 may be used to execute the computer-executable instructions 610 by one or more processors or processing devices to implement the display screen brightness correction method of the first embodiment described above.
In addition, it should be understood that the foregoing embodiments are merely exemplary illustrations of the present invention, and the technical solutions of the embodiments may be arbitrarily combined and matched without conflict in technical features, contradiction in structure, and departure from the purpose of the present invention.
In the several embodiments provided in the present invention, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the partitioning of elements is merely a logical functional partitioning, and there may be additional partitioning in actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not implemented. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The display screen brightness and color correction method based on the mobile terminal is characterized by comprising the following steps of:
controlling a region to be corrected of a display screen connected with the mobile terminal to display a preset picture through the mobile terminal;
acquiring a first correction image of the region to be corrected when the preset picture is displayed through the mobile terminal;
acquiring reference luminance and chrominance data;
obtaining a brightness correction coefficient of the area to be corrected according to the first correction image and the reference brightness data; and
transmitting the brightness correction coefficient to the display screen to correct the area to be corrected;
the acquiring the reference brightness color data comprises:
the mobile terminal controls a reference area of the display screen to display the preset picture, wherein the area to be corrected and the reference area are different areas of the display screen, and display units of the reference area are display units with different batches of display units of the area to be corrected;
collecting a second correction image of the reference area when the preset picture is displayed through the mobile terminal; and
the reference luminance and chrominance data is determined based on the second corrected image.
2. The mobile terminal-based display screen brightness correction method according to claim 1, wherein the acquiring reference brightness data specifically comprises:
and receiving externally input brightness and color data as the reference brightness and color data.
3. The mobile terminal-based display screen brightness correction method according to claim 1, wherein the obtaining the brightness correction coefficient of the area to be corrected from the first corrected image and the reference brightness data comprises:
obtaining initial brightness data of the area to be corrected based on the first correction image; and
and determining the brightness correction coefficient of the area to be corrected according to the reference brightness data and the initial brightness data of the area to be corrected.
4. The mobile terminal-based display screen brightness correction method according to claim 1, wherein the obtaining the brightness correction coefficient of the area to be corrected from the first corrected image and the reference brightness data comprises:
transmitting the first correction image to a data operation device, so that the data operation device obtains initial brightness data of the area to be corrected based on the first correction image, and determines the brightness correction coefficient of the area to be corrected according to the reference brightness data and the initial brightness data of the area to be corrected; and
the luminance-chrominance correction coefficients are received from the data-operation device.
5. The mobile terminal-based display screen brightness correction method of claim 1, wherein the display screen is connected to the mobile terminal through a wireless network or a mobile communication network.
6. The utility model provides a display screen brightness correction device based on mobile terminal which characterized in that includes:
the first picture display module is used for controlling a to-be-corrected area of a display screen connected with the mobile terminal to display a preset picture through the mobile terminal;
the first image acquisition module is used for acquiring a first correction image of the region to be corrected when the preset picture is displayed through the mobile terminal;
the reference data acquisition module is used for acquiring reference luminance and chrominance data;
a target correction data acquisition module, configured to obtain a luminance correction coefficient of the area to be corrected according to the first correction image and the reference luminance data; and
the target correction data transmitting module is used for transmitting the brightness correction coefficient to the display screen to correct the area to be corrected;
the reference data acquisition module includes:
the second picture display unit is used for controlling a reference area of the display screen to display the preset picture through the mobile terminal, wherein the area to be corrected and the reference area are different areas of the display screen, and the display units of the reference area are different display units from the display unit batch of the area to be corrected;
the second image acquisition unit is used for acquiring a second correction image of the reference area when the preset picture is displayed through the mobile terminal; and
and a reference data determination unit configured to determine the reference luminance and chrominance data based on the second corrected image.
7. The mobile terminal based display screen brightness correction device of claim 6 wherein the reference data acquisition module further comprises:
and a reference data receiving unit for receiving externally input luminance and chrominance data as the reference luminance and chrominance data.
8. The mobile terminal based display screen brightness correction device of claim 6 wherein the target correction data acquisition module comprises:
an initial data determining unit configured to obtain initial luminance and chrominance data of the region to be corrected based on the first corrected image; and
and a target correction data determining unit configured to determine the luminance correction coefficient of the region to be corrected according to the reference luminance data and the initial luminance data of the region to be corrected.
9. The mobile terminal based display screen brightness correction device of claim 6 wherein the target correction data acquisition module comprises:
a corrected image transmitting unit; the data computing device is used for obtaining initial brightness data of the area to be corrected based on the first correction image and determining the brightness correction coefficient of the area to be corrected according to the reference brightness data and the initial brightness data of the area to be corrected; and
and the target correction data determining unit is used for receiving the brightness correction coefficient transmitted by the data operation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011306006.3A CN114596809B (en) | 2020-11-19 | 2020-11-19 | Display screen brightness correction method and device based on mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011306006.3A CN114596809B (en) | 2020-11-19 | 2020-11-19 | Display screen brightness correction method and device based on mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114596809A CN114596809A (en) | 2022-06-07 |
| CN114596809B true CN114596809B (en) | 2023-11-14 |
Family
ID=81812419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011306006.3A Active CN114596809B (en) | 2020-11-19 | 2020-11-19 | Display screen brightness correction method and device based on mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114596809B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448230A (en) * | 2014-08-12 | 2016-03-30 | 西安诺瓦电子科技有限公司 | LED display device brightness and chroma correction method and system based on human vision |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103824544B (en) * | 2014-02-28 | 2015-12-09 | 西安诺瓦电子科技有限公司 | The bearing calibration of LED display, Apparatus and system |
| CN105096815A (en) * | 2014-05-06 | 2015-11-25 | 西安诺瓦电子科技有限公司 | Method for correcting brightness and chrominance of LED display screen, and LED display screen system |
| CN105185298B (en) * | 2015-08-05 | 2017-12-08 | 西安诺瓦电子科技有限公司 | LED display bearing calibration |
| KR102492150B1 (en) * | 2017-09-15 | 2023-01-27 | 삼성전자주식회사 | Display system and display calibration method |
-
2020
- 2020-11-19 CN CN202011306006.3A patent/CN114596809B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105448230A (en) * | 2014-08-12 | 2016-03-30 | 西安诺瓦电子科技有限公司 | LED display device brightness and chroma correction method and system based on human vision |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114596809A (en) | 2022-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102622990B (en) | Liquid crystal display backlight control apparatus, televisor and liquid crystal screen backlight control method | |
| WO2017059732A1 (en) | Display device for adjusting display colour gamut and method for adjusting display colour gamut therefor | |
| EP3972237A1 (en) | Light compensation method for capturing picture, intelligent television and computer readable storage medium | |
| CN101923820B (en) | A kind of LED display point-to-point correction system of master slave mode | |
| CN112669758B (en) | Display screen correction method, device, system and computer readable storage medium | |
| CN111326099B (en) | Display correction method, device and system, storage medium and display system | |
| WO2018188260A1 (en) | Image display control method and device, and display screen control system | |
| TWI506615B (en) | Computer monitor equalization using handheld device | |
| CN107077830B (en) | Screen brightness adjusting method suitable for unmanned aerial vehicle control end and unmanned aerial vehicle control end | |
| CN101674400A (en) | Camera system and method thereof | |
| CN110930932B (en) | Display screen correction method and system | |
| CN111447372A (en) | Control method, device, equipment and medium for brightness parameter adjustment | |
| CN114596809B (en) | Display screen brightness correction method and device based on mobile terminal | |
| CN111052869B (en) | Illumination method and system for improving perspective color perception of images viewed by a user | |
| US20230214955A1 (en) | Electronic apparatus and image processing method of electronic apparatus | |
| CN115398521A (en) | System, method and device for image processing | |
| CN111726542A (en) | Camera light supplementing method, terminal and storage medium | |
| CN112367557B (en) | Display method of LED television wall, television and computer readable storage medium | |
| WO2015154533A1 (en) | Projection method and device, terminal and server | |
| CN113870768A (en) | Display compensation method and device | |
| CN113571010B (en) | Brightness and chrominance information acquisition method, device and system and computer readable storage medium | |
| WO2023038307A1 (en) | Image generation using non-linear scaling and tone-mapping based on cubic spline curves | |
| CN116110351B (en) | Backlight control method, device, chip, electronic equipment and medium | |
| CN113012623B (en) | Display screen brightness adjusting method and device | |
| CN113903285A (en) | Display unit correction method, device and computer readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |