CN105679221B - Detection method and detection device for chromatic aberration and terminal - Google Patents
Detection method and detection device for chromatic aberration and terminal Download PDFInfo
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- CN105679221B CN105679221B CN201610202776.0A CN201610202776A CN105679221B CN 105679221 B CN105679221 B CN 105679221B CN 201610202776 A CN201610202776 A CN 201610202776A CN 105679221 B CN105679221 B CN 105679221B
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- 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
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
Abstract
The embodiment of the invention discloses a method for detecting chromatic aberration, which comprises the following steps: dividing a display screen into a plurality of unit display areas; displaying the same calibration picture in each unit display area; acquiring photos of each unit display area through a shooting device, and acquiring preset reference photos of the display screen when the calibration pictures are displayed in a full screen mode; and comparing the picture of each unit display area with the reference picture respectively to detect the unit display area with color difference. Correspondingly, the embodiment of the invention also discloses a detection device and a terminal for the color difference. By adopting the invention, the area with chromatic aberration in the display screen can be detected.
Description
Technical Field
The present invention relates to the field of computer technologies, and in particular, to a method, an apparatus, and a terminal for detecting color difference.
Background
An OLED (Organic Light-Emitting Diode) display is a display formed by Organic Light-Emitting materials, wherein the Organic Light-Emitting materials can emit colored Light when being energized. Since the OLED display has advantages of lightness, thinness, large viewing angle, and low power consumption, it is widely used in terminals such as smart phones. It should be noted that, since the organic light emitting material in the OLED display panel is self-luminous, the light emitting process is accompanied by the consumption of the organic light emitting material, and the consumption is not recoverable.
It will be appreciated that different display luminances and different display colors will have different consumptions of organic light emitting materials. In the process of displaying a picture, due to complexity of picture composition, a display screen of a terminal such as a smart phone inevitably has some areas with deep brightness and some areas with shallow brightness, or some areas display more colors and some areas display more colors, so that organic light-emitting materials in each area are consumed differently, and display color difference of the display screen is finally caused along with the lapse of time, that is, pictures with the same brightness cannot be displayed. At present, how to detect the area with chromatic aberration in the display screen is a problem which needs to be solved urgently.
Disclosure of Invention
The embodiment of the invention provides a method, a device and a terminal for detecting chromatic aberration, which can detect an area with chromatic aberration in a display screen.
The first aspect of the embodiments of the present invention provides a method for detecting color difference, including:
dividing a display screen into a plurality of unit display areas;
displaying the same calibration picture in each unit display area;
acquiring photos of each unit display area through a shooting device, and acquiring preset reference photos of the display screen when the calibration pictures are displayed in a full screen mode;
and comparing the picture of each unit display area with the reference picture respectively to detect the unit display area with color difference.
In a first possible implementation manner of the first aspect, the detecting a unit display area with a color difference by comparing the picture of each unit display area with the reference picture includes:
and when the brightness difference value between the reference picture and the picture of any unit display area is greater than a preset threshold value, determining the unit display area as the unit display area with color difference.
In a second possible implementation manner of the first aspect, after the unit display areas with color differences are detected by comparing the pictures of the unit display areas with the reference pictures, the method further includes:
and performing brightness compensation on the unit display area with the color difference.
With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner, the performing brightness compensation on the unit display area with color difference includes:
and increasing the brightness of the unit display area with the color difference according to the brightness difference value of the reference picture and the picture of the unit display area with the color difference.
With reference to the first aspect or the second to third possible implementation manners of the first aspect, in a fourth possible implementation manner, the acquiring, by the capturing device, a photo of each unit display area includes:
shooting pictures of each unit display area through a camera carried by the user; or
And receiving the pictures of the unit display areas shot by the external shooting equipment from the external shooting equipment.
A second aspect of an embodiment of the present invention provides a device for detecting color difference, including:
the area dividing module is used for dividing the display screen into a plurality of unit display areas;
the picture display module is used for displaying the same calibration picture in each unit display area;
the photo obtaining module is used for obtaining photos of each unit display area through a shooting device and obtaining a preset reference photo when the display screen displays the calibration picture in a full screen mode;
and the color difference determining module is used for comparing the picture of each unit display area with the reference picture respectively to detect the unit display area with the color difference.
In a first possible implementation manner of the second aspect, the color difference determining module is specifically configured to determine that the unit display area is a unit display area with color difference when a luminance difference between the reference picture and a picture of any one of the unit display areas is greater than a preset threshold.
In a second possible implementation manner of the second aspect, the apparatus further includes:
and the brightness compensation module is used for performing brightness compensation on the unit display area with the color difference.
With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner, the luminance compensation module is specifically configured to increase the luminance of the unit display area with color difference according to a luminance difference value between the reference picture and the picture of the unit display area with color difference.
With reference to the second aspect or the second to third possible implementation manners of the second aspect, in a fourth possible implementation manner, the photo obtaining module is specifically configured to:
shooting pictures of each unit display area through a camera carried by the user; or
And receiving the pictures of the unit display areas shot by the external shooting equipment from the external shooting equipment.
A third aspect of an embodiment of the present invention provides a terminal, including a display unit, a memory, and a processor, where the memory stores a set of programs, and the processor is configured to call the programs stored in the memory, and perform the following operations:
dividing a display screen into a plurality of unit display areas;
displaying the same calibration picture in each unit display area;
acquiring photos of each unit display area through a shooting device, and acquiring preset reference photos of the display screen when the calibration pictures are displayed in a full screen mode;
and comparing the picture of each unit display area with the reference picture respectively to detect the unit display area with color difference.
As can be seen from the above, in the embodiment of the present invention, the display screen is divided into a plurality of unit display areas, the same calibration picture is displayed in each unit display area, the photo of each unit display area is obtained by the photographing device, the reference photo of the preset display screen when the calibration picture is displayed in full screen is obtained, and then the unit display area with chromatic aberration is detected by comparing the photo of each unit display area with the reference photo, so as to detect the area with chromatic aberration in the display screen.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed for describing the embodiments or prior art will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained by those skilled in the art without inventive effort.
Fig. 1 is a schematic flow chart of a method for detecting chromatic aberration according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of another method for detecting color difference according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a device for detecting chromatic aberration according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 5 is a schematic diagram of display screen area division according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The color difference detection method provided by the embodiment of the invention is applied to a terminal, and the terminal comprises electronic equipment such as a smart phone, a tablet personal computer, intelligent wearable equipment, a digital audio and video player, an electronic reader, a handheld game machine and vehicle-mounted electronic equipment. In the embodiment of the invention, the display screen configured at the terminal is an OLED display screen, and the OLED display screen is a display screen formed by organic light-emitting materials, wherein the organic light-emitting materials can emit colored light when electrified.
It will be appreciated that different display luminances and different display colors will have different consumptions of organic light emitting materials. In the process of displaying a picture, due to complexity of picture composition, it is inevitable that some areas have high brightness and some areas have low brightness, or some areas display more colors and some areas display more colors, so that organic light-emitting materials in the respective areas consume different amounts, and display color difference of the display screen is finally caused as time goes on, that is, pictures with the same brightness cannot be displayed.
Fig. 1 is a schematic flow chart of a method for detecting chromatic aberration according to an embodiment of the present invention. As shown in the figure, the flow of the color difference detection method in the present embodiment may include:
s101, dividing a display screen into a plurality of unit display areas.
Preferably, the terminal divides the display screen into a plurality of unit display areas in a matrix array form. The number of rows and columns of the matrix array may be preset by a device manufacturer, or may be preset by a user, which is not limited herein. For example: referring to fig. 5, the terminal may divide the display screen into 36 unit display areas in a matrix array form of 6 × 6 as shown.
It is noted that the more unit display regions are divided, the smaller the area of each unit display region, and the finer the detected color difference region.
Optionally, the terminal may also divide the unit display area in other forms, the shape of the divided unit display area is not limited to be rectangular, the area of each unit display area is not limited to be equal, and the description is not exhaustive.
And S102, displaying the same calibration picture in each unit display area.
Preferably, the calibration picture is a pure color picture. The reason is that the pure color picture has low complexity, which is convenient for the subsequent brightness comparison, and the pure color picture is not deformed due to stretching or compression, which ensures the rationality of the subsequent comparison. For example: referring to fig. 5, the terminal displays the same gray picture in 36 unit display areas.
It should be noted that, when the terminal displays the preset calibration picture in each unit display area through the display screen, it should be ensured that the current display screen is at a preset brightness level, such as a brightness level of 60%.
S103, obtaining the photo of each unit display area through a shooting device, and obtaining a preset reference photo of the display screen when the calibration picture is displayed in a full screen mode.
Optionally, the mode that the terminal obtains the picture of each unit display area through the shooting device may be any one of the following modes:
① the camera of the terminal is rotatable, for example, the camera can be rotated to point to the display screen to take the pictures of each unit display area, or the display screen of the terminal is flexible, so that the terminal can be placed in front of the camera to take the pictures of each unit display area.
②, receiving the pictures of the unit display areas shot by the external shooting device, wherein, the terminal and the external shooting device establish a communication connection in advance, and the external shooting device sends the pictures to the terminal through the communication connection after obtaining the pictures of the unit display areas.
The reference picture is obtained by displaying a calibration picture on a full screen of a display screen in advance, and the reference picture is stored in the terminal for later calling out at any time, for example: before the terminal leaves a factory, the calibration picture is displayed in a full screen mode through the display screen, the photo at the moment is obtained through the shooting equipment, and the photo is used as a reference photo and stored in the storage. It should be noted that, when the terminal displays the calibration picture in full screen through the display screen, it should also ensure that the brightness level of the display screen is the preset brightness level.
And S104, comparing the picture of each unit display area with the reference picture, and detecting the unit display area with color difference.
Specifically, the terminal detects brightness values of the reference picture and the pictures in each unit display area, compares brightness difference values of the reference picture and the pictures in each unit display area, and determines that the unit display area is the unit display area with color difference when the brightness difference value of the reference picture and the picture in any unit display area is larger than a preset threshold value. The preset threshold may be preset by a device manufacturer, or may be preset by a user, which is not limited herein.
For example: referring to fig. 5, if it is detected that the luminance values of the 1 st to 21 th and 23 th to 36 th unit display areas are 8.32, the luminance value of the 22 nd unit display area is 6.25, the luminance value of the reference picture is 8.36, and the predetermined threshold is 2, it is determined that the difference between the luminance values of the reference picture and the 22 nd unit display area is greater than the predetermined threshold (2.07>2), so that the terminal determines the 22 nd unit display area as the unit display area with color difference.
Further, after detecting the unit display area having the color difference, the terminal performs luminance compensation on the unit display area having the color difference.
In a specific implementation process, the terminal increases the brightness of the unit display area with the color difference according to the brightness difference value of the reference picture and the picture of the unit display area with the color difference. As an alternative embodiment, the terminal increases the brightness of the unit display area where the color difference exists until the difference between the brightness of the reference picture and the picture of the unit display area is less than a preset threshold. As another alternative implementation, the terminal establishes a correspondence between the brightness difference value and the brightness enhancement level in advance, and further may determine the brightness to be increased directly according to the brightness difference value. It should be noted that the way in which the terminal increases the luminance of the unit display area may be realized by increasing the driving current or driving voltage of the unit display area.
In the embodiment of the invention, the display screen is divided into a plurality of unit display areas, the same calibration picture is displayed in each unit display area, the picture of each unit display area is obtained through the shooting device, the reference picture of the preset display screen when the calibration picture is displayed in the full screen is obtained, and then the unit display area with chromatic aberration is detected by comparing the picture of each unit display area with the reference picture, so that the area with chromatic aberration in the display screen is detected.
Fig. 2 is a schematic flow chart of another method for detecting color difference in the embodiment of the present invention. As shown in the figure, the flow of the color difference detection method in the present embodiment may include:
s201, dividing a display screen into a plurality of unit display areas.
Preferably, the terminal divides the display screen into a plurality of unit display areas in a matrix array form. The number of rows and columns of the matrix array may be preset by a device manufacturer, or may be preset by a user, which is not limited herein. For example: referring to fig. 5, the terminal may divide the display screen into 36 unit display areas in a matrix array form of 6 × 6 as shown.
It is noted that the more unit display regions are divided, the smaller the area of each unit display region, and the finer the detected color difference region.
Optionally, the terminal may also divide the unit display area in other forms, the shape of the divided unit display area is not limited to be rectangular, the area of each unit display area is not limited to be equal, and the description is not exhaustive.
And S202, displaying the same calibration picture in each unit display area.
Preferably, the calibration picture is a pure color picture. The reason is that the pure color picture has low complexity, which is convenient for the subsequent brightness comparison, and the pure color picture is not deformed due to stretching or compression, which ensures the rationality of the subsequent comparison. For example: referring to fig. 5, the terminal displays the same gray picture in 36 unit display areas.
It should be noted that, when the terminal displays the preset calibration picture in each unit display area through the display screen, it should be ensured that the current display screen is at a preset brightness level, such as a brightness level of 60%.
And S203, acquiring a picture of each unit display area through a shooting device.
Optionally, the mode that the terminal obtains the picture of each unit display area through the shooting device may be any one of the following modes:
① the camera of the terminal is rotatable, for example, the camera can be rotated to point to the display screen to take the pictures of each unit display area, or the display screen of the terminal is flexible, so that the terminal can be placed in front of the camera to take the pictures of each unit display area.
②, receiving the pictures of the unit display areas shot by the external shooting device, wherein, the terminal and the external shooting device establish a communication connection in advance, and the external shooting device sends the pictures to the terminal through the communication connection after obtaining the pictures of the unit display areas.
S204, acquiring a preset reference photo of the display screen when the calibration picture is displayed in a full screen mode.
The reference picture is obtained by displaying a calibration picture on a full screen of a display screen in advance, and the reference picture is stored in the terminal for later calling out at any time, for example: before the terminal leaves a factory, the calibration picture is displayed in a full screen mode through the display screen, the photo at the moment is obtained through the shooting equipment, and the photo is used as a reference photo and stored in the storage. It should be noted that, when the terminal displays the calibration picture in full screen through the display screen, it should also ensure that the brightness level of the display screen is the preset brightness level.
S205, when the brightness difference value between the reference picture and the picture of any one of the unit display areas is larger than a preset threshold value, determining that the unit display area is the unit display area with color difference.
Specifically, the terminal detects brightness values of the reference picture and the pictures in each unit display area, compares brightness difference values of the reference picture and the pictures in each unit display area, and determines that the unit display area is the unit display area with color difference when the brightness difference value of the reference picture and the picture in any unit display area is larger than a preset threshold value. The preset threshold may be preset by a device manufacturer, or may be preset by a user, which is not limited herein.
For example: referring to fig. 5, if it is detected that the luminance values of the 1 st to 21 th and 23 th to 36 th unit display areas are 8.32, the luminance value of the 22 nd unit display area is 6.25, the luminance value of the reference picture is 8.36, and the predetermined threshold is 2, it is determined that the difference between the luminance values of the reference picture and the 22 nd unit display area is greater than the predetermined threshold (2.07>2), so that the terminal determines the 22 nd unit display area as the unit display area with color difference.
And S206, performing brightness compensation on the unit display area with the chromatic aberration.
Specifically, the terminal increases the brightness of the unit display area having the color difference according to the brightness difference between the reference picture and the picture of the unit display area having the color difference.
As an alternative embodiment, the terminal increases the brightness of the unit display area where the color difference exists until the difference between the brightness of the reference picture and the picture of the unit display area is less than a preset threshold.
As another alternative implementation, the terminal establishes a correspondence between the brightness difference value and the brightness enhancement level in advance, and further may determine the brightness to be increased directly according to the brightness difference value.
It should be noted that the way in which the terminal increases the luminance of the unit display area may be realized by increasing the driving current or driving voltage of the unit display area.
In the embodiment of the invention, the display screen is divided into a plurality of unit display areas, the same calibration picture is displayed in each unit display area, the picture of each unit display area is obtained through the shooting device, the reference picture of the preset display screen when the calibration picture is displayed in the full screen is obtained, and then the unit display area with chromatic aberration is detected by comparing the picture of each unit display area with the reference picture, so that the area with chromatic aberration in the display screen is detected.
Fig. 3 is a schematic structural diagram of a device for detecting chromatic aberration according to an embodiment of the present invention. As shown in the figure, the apparatus for detecting color difference in the embodiment of the present invention at least includes an area dividing module 310, an image display module 320, a photo obtaining module 330, and a color difference determining module 340, where:
the area dividing module 310 is configured to divide the display screen into a plurality of unit display areas.
Preferably, the area dividing module 310 divides the display screen into a plurality of unit display areas in a matrix array form. The number of rows and columns of the matrix array may be preset by a device manufacturer, or may be preset by a user, which is not limited herein. For example: referring to fig. 5, the region dividing module 310 may divide the display screen into 36 unit display regions in a matrix array form of 6 × 6.
It is noted that the more unit display regions are divided, the smaller the area of each unit display region, and the finer the detected color difference region.
Optionally, the region dividing module 310 may also divide the unit display regions in other forms, the shapes of the divided unit display regions are not limited to being rectangles, the areas of the unit display regions are not limited to being equal, and this is not exhaustive.
A picture display module 320, configured to display the same calibration picture in each of the unit display areas.
Preferably, the calibration picture is a pure color picture. The reason is that the pure color picture has low complexity, which is convenient for the subsequent brightness comparison, and the pure color picture is not deformed due to stretching or compression, which ensures the rationality of the subsequent comparison. For example: referring to fig. 5, the image display module 320 displays the same gray picture in 36 unit display areas.
It should be noted that, when the picture display module 320 displays the preset calibration picture in each unit display area through the display screen, it should be ensured that the current display screen is at a preset brightness level, such as a brightness level of 60%.
The photo obtaining module 330 is configured to obtain, by using a shooting device, a photo of each unit display area, and obtain a preset reference photo when the calibration picture is displayed on the display screen in a full screen.
Alternatively, the mode of the photo obtaining module 330 obtaining the photo of each unit display area through the shooting device may be any one of the following:
① the camera of the terminal is rotatable, for example, the camera can be rotated to point to the display screen to take the pictures of each unit display area, or the display screen of the terminal is flexible, so that the terminal can be placed in front of the camera to take the pictures of each unit display area.
②, receiving the pictures of the unit display areas shot by the external shooting device, wherein, the terminal and the external shooting device establish a communication connection in advance, and the external shooting device sends the pictures to the terminal through the communication connection after obtaining the pictures of the unit display areas.
The reference picture is obtained by displaying a calibration picture on a full screen of a display screen in advance, and the reference picture is stored in the terminal for later calling out at any time, for example: before the terminal leaves a factory, the calibration picture is displayed in a full screen mode through the display screen, the photo at the moment is obtained through the shooting equipment, and the photo is used as a reference photo and stored in the storage. It should be noted that, when the terminal displays the calibration picture in full screen through the display screen, it should also ensure that the brightness level of the display screen is the preset brightness level.
A color difference determining module 340, configured to detect a unit display area with a color difference by comparing the picture of each unit display area with the reference picture.
Specifically, the color difference determining module 340 detects brightness values of the reference photo and the photo in each unit display area, compares brightness difference values of the reference photo and the photo in each unit display area, and determines that the unit display area is the unit display area with the color difference when the brightness difference value of the reference photo and the photo in any unit display area is greater than a preset threshold. The preset threshold may be preset by a device manufacturer, or may be preset by a user, which is not limited herein.
For example: referring to fig. 5, if it is detected that the luminance values of the 1 st to 21 th and 23 th to 36 th unit display areas are 8.32, the luminance value of the 22 nd unit display area is 6.25, the luminance value of the reference picture is 8.36, and the predetermined threshold is 2, then the difference between the luminance values of the reference picture and the 22 nd unit display area is greater than the predetermined threshold (2.07>2), so that the color difference determining module 340 determines the 22 nd unit display area as the unit display area with color difference.
Optionally, referring to fig. 3, as shown in the figure, the apparatus for detecting color difference in the embodiment of the present invention may further include a brightness compensation module 350, configured to perform brightness compensation on the unit display area with color difference.
Specifically, the brightness compensation module 350 increases the brightness of the unit display area with color difference according to the brightness difference between the reference picture and the picture of the unit display area with color difference. As an alternative embodiment, the brightness compensation module 350 increases the brightness of the unit display area with the color difference until the difference between the brightness of the reference picture and the brightness of the picture of the unit display area is smaller than a preset threshold. As another alternative, the terminal may pre-establish a corresponding relationship between the brightness difference value and the brightness enhancement level, and the brightness compensation module 350 may determine the brightness to be increased directly according to the brightness difference value. It is noted that the brightness compensation module 350 may increase the brightness of the unit display area by increasing the driving current or the driving voltage of the unit display area.
Referring to fig. 4, a schematic structural diagram of a terminal according to an embodiment of the present invention may be used to implement the method for detecting color difference provided in the embodiments of fig. 1 to fig. 2, where:
the terminal 400 may include components such as a power supply 410, memory 420 for one or more computer-readable storage media, an input unit 430, a display unit 440, a processor 450, a camera 460, and a communication unit 470. Those skilled in the art will appreciate that the terminal configuration shown in fig. 4 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. Wherein:
the memory 420 may be used to store software programs and modules, and the processor 450 executes various functional applications and data processing by operating the software programs and modules stored in the memory 450. The memory 420 may mainly include a program storage area and a data storage area. Further, the memory 420 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage device. Accordingly, the memory 420 may also include a memory controller to provide the processor 450 and the input unit 430 access to the memory 420.
The input unit 430 may be used to receive input numeric or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control. Specifically, the input unit 430 may include a touch screen 431 and other input devices 432. The touch screen 431 may collect touch operations by a user (e.g., operations by a user on or near a touch surface using a finger, a stylus, or any other suitable object or accessory) and drive the corresponding connection device according to a predetermined program. The input unit 430 may include other input devices 432 in addition to the touch screen 431. Additionally, other input devices 432 may include, but are not limited to, one or more of function keys (such as volume control keys, switch keys, etc.), a trackball, a joystick, and the like.
The display unit 440 may be used to display information input by a user or information provided to the user and various graphic user interfaces of the calling device 400 of the application, which may be configured by graphics, text, icons, video, and any combination thereof. The display unit 440 includes a display screen 441, and optionally, the display screen 441 may be an OLED display screen.
The terminal 400 also includes a power source 410 (e.g., a battery) for powering the various components, which may preferably be logically coupled to the processor 450 via a power management system to manage charging, discharging, and power consumption management functions via the power management system. The power supply 450 may also include any component of one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.
The processor 450 is a control center of a calling device of an application program, connects various parts of the entire cellular phone using various interfaces and lines, and performs various functions and processes data by operating or executing software programs and/or modules stored in the memory 420 and calling data stored in the memory 420. Alternatively, processor 450 may include one or more processing cores; preferably, the processor 450 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles communications. It will be appreciated that the modem processor described above may not be integrated into processor 450.
The camera 460 has a photographing function for taking a photograph.
The communication unit 470 may be a wired communication interface, or may be a wireless communication interface, such as WiFi, cellular wireless communication, or bluetooth, and is not limited herein. The communication unit 470 is used for communicating with an external shooting device to obtain a photo taken by the external shooting device.
Further, the processor 450 calls the program code stored in the memory 420 for performing the following operations:
dividing a display screen into a plurality of unit display areas;
displaying the same calibration picture in each unit display area;
acquiring photos of each unit display area through a shooting device, and acquiring preset reference photos of the display screen when the calibration pictures are displayed in a full screen mode;
and comparing the picture of each unit display area with the reference picture respectively to detect the unit display area with color difference.
Optionally, the processor 450 compares the picture of each unit display area with the reference picture, and detects that there is a color difference in the unit display area by:
and when the brightness difference value between the reference picture and the picture of any unit display area is greater than a preset threshold value, determining the unit display area as the unit display area with color difference.
Alternatively, the processor 450 compares the picture of each unit display area with the reference picture to detect a unit display area with a color difference, and then performs:
and performing brightness compensation on the unit display area with the color difference.
Optionally, the specific operation of the processor 450 performing brightness compensation on the unit display area with color difference is as follows:
and increasing the brightness of the unit display area with the color difference according to the brightness difference value of the reference picture and the picture of the unit display area with the color difference.
Optionally, the specific operation of the processor 450 obtaining the picture of each unit display area through the shooting device is as follows:
shooting pictures of each unit display area through a camera carried by the user; or
And receiving the pictures of the unit display areas shot by the external shooting equipment from the external shooting equipment.
An embodiment of the present invention further provides a computer storage medium, which stores a program, where the program includes several instructions to execute some or all of the steps in the method for detecting color difference described in fig. 1 to fig. 2 according to the embodiment of the present invention.
In the embodiment of the invention, the display screen is divided into a plurality of unit display areas, the same calibration picture is displayed in each unit display area, the picture of each unit display area is obtained through the shooting device, the reference picture of the preset display screen when the calibration picture is displayed in the full screen is obtained, and then the unit display area with chromatic aberration is detected by comparing the picture of each unit display area with the reference picture, so that the area with chromatic aberration in the display screen is detected.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments. In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (7)
1. A method for detecting chromatic aberration, the method comprising:
dividing a display screen into a plurality of unit display areas, wherein the areas of the unit display areas are unequal;
displaying the same gray pure color calibration picture in each unit display area, wherein the gray pure color calibration picture is displayed at a brightness level of 60%;
acquiring photos of each unit display area through a shooting device carried by the display screen, wherein the shooting device carried by the display screen comprises a camera, the flexible display screen is bent to the camera to shoot the photos of each unit display area, and a preset reference photo of the display screen when the calibration picture is displayed in a full screen mode is acquired;
and comparing the picture of each unit display area with the reference picture respectively to detect the unit display area with chromatic aberration, and increasing the driving current for the unit display area with chromatic aberration to perform brightness compensation.
2. The method as claimed in claim 1, wherein the detecting of the unit display areas having color differences by comparing the photographs of the respective unit display areas with the reference photograph comprises:
and when the brightness difference value between the reference picture and the picture of any unit display area is greater than a preset threshold value, determining the unit display area as the unit display area with color difference.
3. The method as claimed in claim 1, wherein the performing of the brightness compensation for the unit display area having the color difference comprises:
and increasing the brightness of the unit display area with the color difference according to the brightness difference value of the reference picture and the picture of the unit display area with the color difference.
4. An apparatus for detecting chromatic aberration, the apparatus comprising:
the area dividing module is used for dividing the display screen into a plurality of unit display areas, and the areas of the unit display areas are unequal;
the picture display module is used for displaying the same gray pure color calibration picture in each unit display area, and displaying the gray pure color calibration picture with the brightness level of 60%;
the camera acquisition module is used for acquiring the photos of the unit display areas through a shooting device carried by the display screen, wherein the shooting device carried by the display screen comprises a camera, the flexible display screen is bent to the camera to shoot the photos of the unit display areas, and a preset reference photo of the display screen when the calibration picture is displayed in a full screen mode is acquired;
the color difference determining module is used for respectively comparing the picture of each unit display area with the reference picture to detect the unit display area with the color difference;
and the brightness compensation module is used for increasing the driving current for the unit display area with the color difference so as to perform brightness compensation.
5. The apparatus of claim 4, wherein the color difference determining module is specifically configured to determine the unit display area as a unit display area with color difference when a brightness difference between the reference picture and a picture of any one of the unit display areas is greater than a preset threshold.
6. The apparatus of claim 4, wherein the brightness compensation module is specifically configured to increase the brightness of the unit display area with color difference according to a brightness difference between the reference picture and the picture of the unit display area with color difference.
7. A terminal, comprising a display unit, a memory and a processor, wherein the memory stores a set of programs and the processor is configured to call the programs stored in the memory, and perform the following operations:
dividing a display screen into a plurality of unit display areas, wherein the areas of the unit display areas are unequal;
displaying the same gray pure color calibration picture in each unit display area, wherein the gray pure color calibration picture is displayed at a brightness level of 60%;
acquiring photos of each unit display area through a shooting device carried by the display screen, wherein the shooting device carried by the display screen comprises a camera, the flexible display screen is bent to the camera to shoot the photos of each unit display area, and a preset reference photo of the display screen when the calibration picture is displayed in a full screen mode is acquired;
and comparing the picture of each unit display area with the reference picture respectively to detect the unit display area with chromatic aberration, and increasing the driving current for the unit display area with chromatic aberration to perform brightness compensation.
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| CN108346393B (en) * | 2018-01-23 | 2021-03-19 | 明基智能科技（上海）有限公司 | Screen correction method and screen correction system |
| CN108281102A (en) * | 2018-01-31 | 2018-07-13 | 京东方科技集团股份有限公司 | The detection device and method of AMOLED display device, prosthetic device and method, repair system |
| CN108303237B (en) * | 2018-03-01 | 2020-07-28 | 深圳回收宝科技有限公司 | Terminal screen detection method, detection device and storage medium |
| CN108801935A (en) * | 2018-04-19 | 2018-11-13 | 重庆国际复合材料股份有限公司 | A kind of detection method of electric yarn, device and medium |
| CN108871735A (en) * | 2018-04-27 | 2018-11-23 | 上海与德科技有限公司 | Display screen shows the test fixture and its test method, host computer of quality |
| CN110875021A (en) * | 2018-08-29 | 2020-03-10 | 中兴通讯股份有限公司 | Screen display control method, device, equipment and readable storage medium |
| CN111598944A (en) * | 2020-04-28 | 2020-08-28 | 维沃移动通信有限公司 | Display screen calibration method, electronic device and storage medium |
| CN113257160A (en) * | 2021-04-28 | 2021-08-13 | 惠科股份有限公司 | Detection device and detection method for display panel |
| CN117114655B (en) * | 2023-09-06 | 2024-04-12 | 江苏华夏电影胶片修复技术有限公司 | Quality analysis and comparison method for film after restoration |
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| CN101470276A (en) * | 2007-12-27 | 2009-07-01 | Tcl集团股份有限公司 | Method and device for correcting luminous parameters of LCD device |
| CN101719363A (en) * | 2009-11-23 | 2010-06-02 | 康佳集团股份有限公司 | Luminance uniformity adjusting method and system of displayer |
| CN101719362B (en) * | 2009-12-22 | 2011-09-21 | 广东威创视讯科技股份有限公司 | Colour calibration method of display unit |
| KR20160007825A (en) * | 2014-07-02 | 2016-01-21 | 삼성디스플레이 주식회사 | Degradation detecting method and degradation detecting device of display panel |
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