CN115623120B - Screen-overlapping display equipment and image display definition adjusting method - Google Patents
Screen-overlapping display equipment and image display definition adjusting method Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/7243—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages
- H04M1/72439—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages for image or video messaging
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
- G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
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- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
- G06F1/1641—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being formed by a plurality of foldable display components
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/73—Deblurring; Sharpening
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/90—Dynamic range modification of images or parts thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
- H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
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Abstract
The embodiment of the application provides a screen-overlapping display device and an adjusting method of image display definition, wherein when an image is displayed through the screen-overlapping display device, the image to be displayed can be acquired first; for each first pixel in an image to be displayed, determining a difference between the color value of the first pixel and the color value of each adjacent pixel; if the brightness of the second pixel is determined to be adjusted according to the obtained difference values, the brightness of the second pixel is determined to be adjusted to be the target brightness; and displaying the image to be displayed through the first display and the second display with the adjusted brightness. Therefore, the brightness of the pixels in the display arranged below is purposefully adjusted based on the difference value between the color value of the first pixel and the color value of each adjacent pixel by analyzing the color value of the first pixel in the image to be displayed, so that the definition of the image display can be improved to a certain extent when the image to be displayed is displayed through the first display and the second display with the adjusted brightness.
Description
Technical Field
The present disclosure relates to the field of image processing technologies, and in particular, to a screen-overlapping display device and a method for adjusting image display definition.
Background
With the popularization of display devices, such as electronic devices including televisions and computers, the requirements of image quality displayed by the display devices are continuously increasing, and the definition of image display has become an important index for evaluating the performance of the electronic devices.
With the rise of the screen overlapping technology, the screen overlapping refers to a screen overlapping display scheme adopting an upper panel and a lower panel. The upper panel is a color screen and is mainly used for realizing accurate control of colors, so that the true colors of the image are restored; while the lower panel is a black and white screen, which is mainly used for dimming, thereby presenting high contrast and dark field details. When the screen-overlapping technology is applied to a display device, the image display definition is still an important index for evaluating the performance of the screen-overlapping display device.
Therefore, how to improve the definition of image display when the image display is performed by the overlay display device is a problem to be solved by those skilled in the art.
Disclosure of Invention
The embodiment of the application provides a screen-overlapping display device and an adjusting method of image display definition, and the definition of image display is improved when the image display is carried out.
In a first aspect, an embodiment of the present application provides a stacked screen display device, including:
A first display and a second display disposed below the first display, the first display and the second display configured to display an image screen and a user interface.
A controller coupled to the first display and the second display, the controller configured to:
acquiring an image to be displayed; wherein the image to be displayed includes a plurality of first pixels.
Determining, for each first pixel, a difference between a color value of the first pixel and a color value of each adjacent pixel of a plurality of adjacent pixels; determining whether to adjust the brightness of a second pixel corresponding to the first pixel in the second display according to the difference value between the color value of the first pixel and the color value of each adjacent pixel; wherein the pixels in the image to be displayed are in one-to-one correspondence with the pixels in the second display.
And if the brightness of the second pixel is determined to be adjusted, determining the target brightness of the second pixel, and adjusting the brightness of the second pixel to be the target brightness.
And displaying the image to be displayed through the first display and the second display with the adjusted brightness.
In one possible implementation, the controller is specifically configured to:
a first maximum value in the first pixel color value and a second maximum value in each of the neighboring pixel color values are determined, respectively.
Differences between the first maximum and a second maximum of the color values of the adjacent pixels are determined, respectively.
In one possible implementation, the controller is specifically configured to:
respectively determining mark information corresponding to each difference value according to the difference value between the color value of the first pixel and the color value of each adjacent pixel; wherein different marking information is used to mark differences in different ranges.
And determining whether to adjust the brightness of the second pixel according to the marking information corresponding to each difference value.
In one possible implementation, the controller is specifically configured to:
for each difference value, if the difference value is larger than a first threshold value and the brightness of the first pixel is higher than the brightness of the adjacent pixel corresponding to the difference value, determining the marking information corresponding to the difference value as first marking information; or,
if the difference value is larger than a first threshold value and the brightness of the first pixel is lower than the brightness of the adjacent pixel corresponding to the difference value, determining the mark information corresponding to the difference value as second mark information; or,
And if the difference value is smaller than or equal to a first threshold value, determining the marking information corresponding to the difference value as third marking information.
In one possible implementation, the controller is specifically configured to:
if the marking information corresponding to each difference value is the first marking information; or,
if the marking information corresponding to each difference value is the second marking information; or,
if the marking information corresponding to each difference value comprises third marking information, other non-third marking information is the first marking information or the second marking information, and the number of the other non-third marking information is larger than a second threshold value, the brightness of the second pixel is determined to be adjusted.
In one possible implementation, the controller is specifically configured to:
if the marking information corresponding to each difference value is the first marking information; or,
if the marking information corresponding to each difference value comprises third marking information, other non-third marking information is first marking information, and the number of the other non-third marking information is larger than a second threshold value, increasing the brightness of the second pixel, and determining the increased brightness as the target brightness of the second pixel.
If the marking information corresponding to each difference value is the second marking information; or,
if the marking information corresponding to each difference value comprises third marking information, other non-third marking information is second marking information, and the number of the other non-third marking information is larger than a second threshold value, the brightness of the second pixel is reduced, and the reduced brightness is determined as the target brightness of the second pixel.
In one possible implementation, the controller is further configured to:
determining a complex region in the image to be displayed; and determining the pixels in the complex region as the plurality of first pixels.
In a second aspect, an embodiment of the present application provides a method for adjusting image display definition, which is applied to a screen-overlapping display device, where the screen-overlapping display device includes a first display and a second display disposed below the first display, and the method includes:
acquiring an image to be displayed; wherein the image to be displayed includes a plurality of first pixels.
Determining, for each first pixel, a difference between a color value of the first pixel and a color value of each adjacent pixel of a plurality of adjacent pixels; determining whether to adjust the brightness of a second pixel corresponding to the first pixel in the second display according to the difference value between the color value of the first pixel and the color value of each adjacent pixel; wherein the pixels in the image to be displayed are in one-to-one correspondence with the pixels in the second display.
And if the brightness of the second pixel is determined to be adjusted, determining the target brightness of the second pixel, and adjusting the brightness of the second pixel to be the target brightness.
And displaying the image to be displayed through the first display and the second display with the adjusted brightness.
In one possible implementation, the determining a difference between the color value of the first pixel and the color value of each of a plurality of neighboring pixels includes:
a first maximum value in the first pixel color value and a second maximum value in each of the neighboring pixel color values are determined, respectively.
Differences between the first maximum and a second maximum of the color values of the adjacent pixels are determined, respectively.
In one possible implementation manner, the determining whether to adjust the brightness of the second pixel corresponding to the first pixel in the second display according to the difference between the color value of the first pixel and the color value of each adjacent pixel includes:
respectively determining mark information corresponding to each difference value according to the difference value between the color value of the first pixel and the color value of each adjacent pixel; wherein different marking information is used to mark differences in different ranges.
And determining whether to adjust the brightness of the second pixel according to the marking information corresponding to each difference value.
In one possible implementation manner, the determining, according to the difference between the color value of the first pixel and the color value of each adjacent pixel, the marking information corresponding to each difference includes:
for each difference value, if the difference value is larger than a first threshold value and the brightness of the first pixel is higher than the brightness of the adjacent pixel corresponding to the difference value, determining the marking information corresponding to the difference value as first marking information; or,
if the difference value is larger than a first threshold value and the brightness of the first pixel is lower than the brightness of the adjacent pixel corresponding to the difference value, determining the mark information corresponding to the difference value as second mark information; or,
and if the difference value is smaller than or equal to a first threshold value, determining the marking information corresponding to the difference value as third marking information.
In one possible implementation manner, the determining whether to adjust the brightness of the second pixel according to the marking information corresponding to each difference value includes:
if the marking information corresponding to each difference value is the first marking information; or,
If the marking information corresponding to each difference value is the second marking information; or,
if the marking information corresponding to each difference value comprises third marking information, other non-third marking information is the first marking information or the second marking information, and the number of the other non-third marking information is larger than a second threshold value, the brightness of the second pixel is determined to be adjusted.
In one possible implementation, the determining the target brightness of the second pixel includes:
if the marking information corresponding to each difference value is the first marking information; or,
if the marking information corresponding to each difference value comprises third marking information, other non-third marking information is first marking information, and the number of the other non-third marking information is larger than a second threshold value, increasing the brightness of the second pixel, and determining the increased brightness as the target brightness of the second pixel.
If the marking information corresponding to each difference value is the second marking information; or,
if the marking information corresponding to each difference value comprises third marking information, other non-third marking information is second marking information, and the number of the other non-third marking information is larger than a second threshold value, the brightness of the second pixel is reduced, and the reduced brightness is determined as the target brightness of the second pixel.
In one possible implementation, the method further includes:
determining a complex region in the image to be displayed; and determining the pixels in the complex region as the plurality of first pixels.
Therefore, the embodiment of the application provides a screen-superposed display device and an adjusting method of image display definition, when an image is displayed by the screen-superposed display device, the image to be displayed can be acquired first; the image to be displayed comprises a plurality of first pixels; determining, for each first pixel, a difference between a color value of the first pixel and a color value of each of a plurality of adjacent pixels; if the brightness of the second pixel is determined to be adjusted according to the difference value between the color value of the first pixel and the color value of each adjacent pixel, determining the target brightness of the second pixel, and adjusting the brightness of the second pixel to be the target brightness; and displaying the image to be displayed through the first display and the second display with the adjusted brightness. Therefore, the brightness of the pixels in the display arranged below is purposefully adjusted based on the difference value between the color value of the first pixel and the color value of each adjacent pixel by analyzing the color value of the first pixel in the image to be displayed, so that the definition of the image display can be improved to a certain extent when the image to be displayed is displayed through the first display and the second display with the adjusted brightness.
Drawings
Fig. 1 is a schematic diagram of a usage scenario of a display device according to an embodiment of the present application;
fig. 2 is a hardware configuration block diagram of a display device according to an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating a relationship between a first pixel and a plurality of adjacent pixels according to an embodiment of the present disclosure;
fig. 4 is a flowchart illustrating a method for adjusting image display definition according to an embodiment of the present application.
Specific embodiments of the present disclosure have been shown by way of the above drawings and will be described in more detail below. These drawings and the written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure. Furthermore, while the disclosure is presented in the context of an exemplary embodiment or embodiments, it should be appreciated that the various aspects of the disclosure may, separately, comprise a complete embodiment.
It should be noted that the brief description of the terms in the present application is only for convenience in understanding the embodiments described below, and is not intended to limit the embodiments of the present application. Unless otherwise indicated, these terms should be construed in their ordinary and customary meaning.
The terms first, second and the like in the description and in the claims and in the above-described figures are used for distinguishing between similar or similar objects or entities and not necessarily for describing a particular sequential or chronological order, unless otherwise indicated. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.
Furthermore, the terms "comprise" and "have," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or apparatus that comprises a list of elements is not necessarily limited to those elements expressly listed, but may include other elements not expressly listed or inherent to such product or apparatus.
The term "module" as used in this application refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and/or software code that is capable of performing the function associated with that element.
The term "remote control" as used in this application refers to a component of an electronic device (such as a display device as disclosed in this application) that can typically be controlled wirelessly over a relatively short distance. Typically, the electronic device is connected to the electronic device using infrared and/or Radio Frequency (RF) signals and/or bluetooth, and may also include functional modules such as WiFi, wireless USB, bluetooth, motion sensors, etc. For example: the hand-held touch remote controller replaces most of the physical built-in hard keys in a general remote control device with a touch screen user interface.
The term "gesture" as used herein refers to a user behavior by which a user expresses an intended idea, action, purpose, and/or result through a change in hand shape or movement of a hand, etc.
Fig. 1 is a schematic diagram of a usage scenario of a display device according to an embodiment of the present application. As shown in fig. 1, the display device 200 is also in data communication with a server 400, and a user can operate the display device 200 through the smart device 300 or the control apparatus 100.
In some embodiments, the control apparatus 100 may be a remote controller, and the communication between the remote controller and the display device includes at least one of infrared protocol communication or bluetooth protocol communication, and other short-range communication modes, and the display device 200 is controlled by a wireless or wired mode.
In some embodiments, the smart device 300 may include any of a mobile terminal, tablet, computer, notebook, AR/VR device, etc.
In some embodiments, the smart device 300 may also be used to control the display device 200. For example, the display device 200 is controlled using an application running on a smart device.
In some embodiments, the smart device 300 and the display device may also be used for communication of data.
In some embodiments, the display device 200 is also in data communication with a server 400. The display device 200 may be permitted to make communication connections via a Local Area Network (LAN), a Wireless Local Area Network (WLAN), and other networks. The server 400 may provide various contents and interactions to the display device 200. The server 400 may be a cluster, or may be multiple clusters, and may include one or more types of servers.
In some embodiments, software steps performed by one step execution body may migrate on demand to be performed on another step execution body in data communication therewith. For example, software steps executed by the server may migrate to be executed on demand on a display device in data communication therewith, and vice versa.
The display device 200 may be a liquid crystal display, an OLED display, a projection display device. The particular display device type, size, resolution, etc. are not limited, and those skilled in the art will appreciate that the display device 200 may be modified in performance and configuration as desired. For example, in the embodiment of the present application, the display device 200 may be a screen-stacked display device, that is, includes a first display and a second display disposed below the first display, and displays an image to be displayed together through the first display and the second display.
The display apparatus 200 may additionally provide a smart network television function of a computer support function, including, but not limited to, a network television, a smart television, an Internet Protocol Television (IPTV), etc., in addition to the broadcast receiving television function.
Fig. 2 is a block diagram of a hardware configuration of a display device 200 according to an embodiment of the present application.
In some embodiments, at least one of the communicator 220, the external device interface 240, the controller 250, the display 260, the memory, the user interface 280 is included in the display apparatus 200.
In some embodiments, the display 260 is configured to receive image signals from the first processor output, and to display video content and images and components of the menu manipulation interface.
In some embodiments, display 260 includes a display screen assembly for presenting pictures, and a drive assembly to drive the display of images.
In some embodiments, the video content is displayed from broadcast television content, or alternatively, from various broadcast signals that may be received via a wired or wireless communication protocol. Alternatively, various image contents received from the network server side transmitted from the network communication protocol may be displayed.
In some embodiments, the display 260 includes a display screen component for presenting a picture, and a driving component for driving an image display, for receiving an image signal from the controller output, for displaying video content, image content, and components of a menu manipulation interface, and a user manipulation UI interface, etc.
In some embodiments, display 260 is a projection display and may further include a projection device and a projection screen.
In some embodiments, communicator 220 is a component for communicating with external devices or servers according to various communication protocol types. For example: the communicator may include at least one of a Wifi module, a bluetooth module, a wired ethernet module, or other network communication protocol chip or a near field communication protocol chip, and an infrared receiver. The display apparatus 200 may establish transmission and reception of control signals and data signals with the control device 100 or the server 400 through the communicator 220.
In some embodiments, the external device interface 240 may include, but is not limited to, the following: high Definition Multimedia Interface (HDMI), analog or data high definition component input interface (component), composite video input interface (CVBS), USB input interface (USB), RGB port, etc. The input/output interface may be a composite input/output interface formed by a plurality of interfaces.
In some embodiments, the controller 250 controls the operation of the display device and responds to user operations through various software control programs stored on the memory. The controller 250 controls the overall operation of the display apparatus 200. For example: in response to receiving a user command to select a UI object to be displayed on the display 260, the controller 250 may perform an operation related to the object selected by the user command.
In some embodiments, the object may be any one of selectable objects, such as a hyperlink, an icon, or other operable control. The operations related to the selected object are: displaying an operation of connecting to a hyperlink page, a document, an image, or the like, or executing an operation of a program corresponding to the icon.
In some embodiments, the user interface 280 is an interface (e.g., a physical key on a display device body, a mouse or other, etc.) that may be used to receive control inputs.
In some embodiments, the display device 200 may adaptively adjust the display color temperature of the image. The display device 200 may be adjusted to display a colder color temperature shade of the image, such as when the temperature is higher, or the display device 200 may be adjusted to display a warmer color shade of the image when the temperature is lower.
In some embodiments, the controller 250 includes at least one of random access Memory (Random Access Memory, RAM), read-Only Memory (ROM), a video processor, an audio processor, other processors (e.g., graphics processor (Graphics Processing Unit, GPU), a central processing unit (Central Processing Unit, CPU), a communication interface (Communication Interface), and a communication Bus (Bus).
The memory includes memory storing various software modules for driving the display device 200. Such as: various software modules stored in the first memory, including: at least one of a base module, a detection module, a communication module, a display control module, a browser module, various service modules, and the like.
With the continuous development of the screen overlapping technology, if the screen overlapping technology is applied to a display device, that is, images are displayed through two displays, the image display definition is still an important index for evaluating the performance of the screen overlapping display device. Then, how to improve the definition of the image display when the image display is performed by the screen-overlapping display device is a problem to be solved by those skilled in the art.
In order to improve the definition of image display when the image display is performed by the screen-overlapping display device, the brightness of the pixels in the display arranged below is considered to influence the definition of the image display, and the pixels in the display arranged below are in one-to-one correspondence with the pixels in the image to be displayed, so that the color values of the pixels in the image to be displayed can be analyzed, and the brightness of the pixels in the display arranged below is adjusted based on the color values of the pixels in the image to be displayed, thereby realizing the adjustment of the definition of the image display.
Based on the technical concept, the embodiment of the application provides a screen-overlapping display device, which comprises a first display and a second display arranged below the first display, wherein the first display and the second display are configured to display an image picture and a user interface; a controller coupled to the first display and the second display, the controller configured to:
step a, obtaining an image to be displayed; wherein the image to be displayed comprises a plurality of first pixels.
For example, the image to be displayed may be a certain frame of image, or may be an image in a certain video, and specifically may be set according to actual needs.
In acquiring an image to be displayed, in one possible implementation, the controller may be configured to: acquiring an image to be displayed from a server; in another possible implementation, the controller may be configured to: receiving the image to be displayed input by the user, the image to be displayed may be acquired in other manners, for example, the controller may be configured to: the image to be displayed is obtained from the local memory, and the image to be displayed and the like can be specifically set according to actual needs, and the embodiment of the application is only illustrated by taking the three obtaining modes as examples, but is not limited to the three obtaining modes.
Generally, for an image, a region in the image can be divided into a flat region and a complex region according to RGB values of pixels therein. The flat region is an image region composed of a plurality of pixels having relatively close RGB values, and the complex region is an image region composed of a plurality of pixels having relatively large RGB values.
In view of the fact that pixels in the complex region have a greater impact on the sharpness of the image display and pixels in the flat region have a lesser impact on the sharpness of the image display, the controller may be configured to, in order to improve the sharpness of the image display to be displayed: determining a complex region in an image to be displayed, and determining pixels in the complex region as a plurality of first pixels; in this way, the brightness of the pixels in the display arranged below is adjusted based on the color value of the first pixel in the complex area by analyzing the color value of the first pixel in the complex area, so that the definition of image display can be effectively improved.
It should be noted that, in the embodiment of the present application, if the data processing amount is not considered, the color value of each pixel in the image to be displayed may be analyzed, and the brightness of the pixel in the display disposed below may be adjusted based on the color value of each pixel in the image to be displayed, and specifically may be set according to the actual needs.
Step b, determining, for each first pixel, a difference between the color value of the first pixel and the color value of each adjacent pixel in the plurality of adjacent pixels; and determining whether to adjust the brightness of a second pixel corresponding to the first pixel in the second display according to the difference value between the color value of the first pixel and the color value of each adjacent pixel.
Wherein the pixels in the image to be displayed are in one-to-one correspondence with the pixels in the second display.
It can be understood that, in the embodiment of the present application, since the method of correspondingly adjusting the brightness of the pixel corresponding to the first pixel in the display disposed below according to the color value of each first pixel is similar, any one of the plurality of first pixels in the complex area will be described as an example for avoiding redundancy.
Typically, the color values of a pixel are represented by three colors of RGB, for example, if the color value of a certain pixel is (255, 0, 123), the maximum value of the color values of the pixel is 255, and for example, if the color value of a certain pixel is (138, 248, 123), the maximum value of the color values of the pixel is 248; in view of the fact that the maximum value of a pixel may characterize to some extent the information about the contrast, sharpness of that pixel, the controller may be configured, for example, in determining the difference between the color value of the first pixel and the color value of each of the plurality of neighboring pixels, to:
determining a first maximum value in the first pixel color value and a second maximum value in each adjacent pixel color value respectively; and then respectively calculating the difference value between the first maximum value in the color value of the first pixel and the second maximum value in each adjacent pixel.
For example, referring to fig. 3, fig. 3 is a schematic diagram of a relationship between a first pixel and a plurality of adjacent pixels provided in the embodiment of the present application, and it is assumed that a black solid circle in fig. 3 represents a first pixel, and the first pixel has 8 adjacent pixels, where the 8 adjacent pixels are an adjacent pixel 1 distributed in an upper left portion of the first pixel, an adjacent pixel 2 distributed in an upper right portion of the first pixel, an adjacent pixel 3 distributed in an upper right portion of the first pixel, an adjacent pixel 4 distributed in an upper right portion of the first pixel, an adjacent pixel 5 distributed in an lower right portion of the first pixel, an adjacent pixel 6 distributed in an upper right portion of the first pixel, an adjacent pixel 7 distributed in an lower left portion of the first pixel, and an adjacent pixel 8 distributed in an left portion of the first pixel.
For the first pixel, the difference between the first maximum value in the color value of the first pixel and the second maximum value in the color value of each adjacent pixel in 8 adjacent pixels is calculated, so that 8 differences can be obtained. In this embodiment of the present application, the first maximum value refers to a color maximum value in the color value of the first pixel, the second maximum value refers to a color maximum value in the color value of the adjacent pixel, and the first maximum value and the second maximum value are only used to distinguish the color maximum value in the color value of the first pixel from the color maximum value in the color value of the adjacent pixel.
After calculating the difference value between the first maximum value in the color value of the first pixel and the second maximum value in the color value of each adjacent pixel, determining the marking information corresponding to each difference value according to the difference value between the color value of the first pixel and the color value of each adjacent pixel; wherein different marking information is used to mark differences in different ranges.
It can be understood that, when determining the flag information corresponding to each difference, in view of the fact that the determination method of the flag information corresponding to each difference is similar, in order to avoid redundancy, description may be given by taking the flag information corresponding to any difference as an example.
For example, in determining the tag information corresponding to the difference value, at least two possible implementations may be included, and in one possible implementation, the controller may be configured to: if the difference value is larger than a first threshold value and the brightness of the first pixel is higher than the brightness of the adjacent pixel corresponding to the difference value, determining the marking information corresponding to the difference value as first marking information; or if the difference value is greater than the first threshold value and the brightness of the first pixel is lower than the brightness of the adjacent pixel corresponding to the difference value, determining the mark information corresponding to the difference value as second mark information; or if the difference value is smaller than or equal to the first threshold value, determining the marking information corresponding to the difference value as third marking information.
The value of the first threshold may be set according to actual needs, where the value of the first threshold is not further limited in this embodiment of the present application.
Alternatively, in another possible implementation, the controller may be configured to: further calculating the ratio between the difference value and the brightness of the first pixel, and if the ratio is larger than a first threshold value and the brightness of the first pixel is higher than the brightness of the adjacent pixel corresponding to the difference value, determining the marking information corresponding to the difference value as first marking information; or if the ratio is greater than the first threshold value and the brightness of the first pixel is lower than the brightness of the adjacent pixel corresponding to the difference value, determining the mark information corresponding to the difference value as second mark information; or if the ratio is smaller than or equal to the first threshold value, determining the marking information corresponding to the difference value as third marking information.
The value of the second threshold may be set according to actual needs, where the value of the second threshold is not further limited in this embodiment of the present application.
For example, the first flag information may be 1, the second flag information may be-1, and the third flag information may be 0; the first flag information may be 2, the second flag information may be-2, and the third flag information may be 0; the setting may be specifically performed according to actual needs, so long as the difference values in different ranges can be distinguished, and herein, the embodiment of the present application only uses the first flag information as 1, the second flag information as-1, and the third flag information as 0 as an example for illustration, but the embodiment of the present application is not limited thereto.
After the marking information corresponding to each difference is determined, whether the brightness of the second pixel is adjusted can be further determined according to the marking information corresponding to each difference. It should be noted that, in the embodiment of the present application, when determining whether to perform brightness adjustment, the adjustment basis is the difference between the color value of the first pixel in the image to be displayed and the color value of the adjacent pixel, but the object of adjustment is the pixel in the second display disposed below, so that by analyzing the color value of the first pixel in the image to be displayed and adjusting the brightness of the pixel in the display disposed below based on the color value of the first pixel in the image to be displayed, the definition of image display can be improved to a certain extent.
For example, in determining whether to adjust the brightness of the second pixel according to the flag information corresponding to each difference value, the controller may be configured to:
in one case, if the marking information corresponding to each difference value is the first marking information; that is, each difference is greater than the first threshold, and the brightness of the first pixel is higher than the brightness of each adjacent pixel, it is determined that the brightness of the second pixel needs to be adjusted.
In another case, if the marking information corresponding to each difference value is the second marking information, that is, each difference value is greater than the first threshold value, and the brightness of the first pixel is lower than the brightness of each adjacent pixel, it is determined that the brightness of the second pixel needs to be adjusted.
In still another case, if the marking information corresponding to each difference value includes third marking information, the other non-third marking information is the first marking information or the second marking information, and the number of the other non-third marking information is greater than the second threshold value, that is, the difference value existing in each difference value is smaller than or equal to the first threshold value, and the other difference values are both greater than the first threshold value, and the brightness of the first pixel is higher than the brightness of the adjacent pixel corresponding to the other difference value; or, the other difference values are all larger than the first threshold value, the brightness of the first pixel is lower than the brightness of the adjacent pixels corresponding to the other difference values, and the number of the other difference values is larger than the second threshold value, so that the brightness of the second pixel is determined to be required to be adjusted.
It should be noted that, in the embodiment of the present application, all the other cases except the above three cases, for example, when a part of the flag information corresponding to each difference is first flag information and a part is second flag information; or when the mark information corresponding to each difference value includes third mark information, and one part of other non-third mark information is first mark information, the other part is second mark information, and the like, it is determined that the brightness of the second pixel is not required to be adjusted.
And c, if the brightness of the second pixel is determined to be adjusted, determining the target brightness of the second pixel, and adjusting the brightness of the second pixel to be the target brightness.
For example, in the embodiment of the present application, when adjusting the brightness of the second pixel and determining the target brightness of the second pixel, the controller may be configured to:
in one case, the luminance of the second pixel may be subjected to an increase process, which includes:
if the marking information corresponding to each difference value is the first marking information, that is, each difference value is greater than the first threshold value, and the brightness of the first pixel is higher than the brightness of each adjacent pixel, the brightness of the second pixel needs to be increased, and the increased brightness is determined as the target brightness of the second pixel.
Or,
if the marking information corresponding to each difference value comprises third marking information, other non-third marking information is first marking information, and the number of the other non-third marking information is larger than a second threshold value, increasing the brightness of the second pixel, and determining the increased brightness as the target brightness of the second pixel.
It is understood that in the embodiment of the present application, increasing the brightness of the second pixel refers to further increasing the brightness of the second pixel based on the initial brightness of the second pixel. For example, when determining the initial brightness of the second pixel, the average gray level and the histogram of the image to be displayed may be calculated first, and the average reply and the histogram may be combined to determine the initial brightness of the second pixel.
For example, when increasing the brightness of the second pixel and determining the increased brightness as the target brightness of the second pixel, at least two possible implementations may be included:
in one possible implementation, the luminance of the second pixel may be increased by means of an offset, and the increased luminance is determined as the target luminance of the second pixel. The specific process is as follows: the offset b may be preset to be greater than 0, and may be increased on the basis of the initial brightness a, assuming that the initial brightness of the second pixel is a, and the value of a+b is determined as the target brightness of the second pixel.
In another possible implementation, the luminance of the second pixel may be increased by means of a gain factor, and the increased luminance is determined as the target luminance of the second pixel. The specific process is as follows: different gain coefficients k may be preset, k is greater than 1, and assuming that the initial brightness of the second pixel is a, the gain coefficient k may be multiplied on the basis of the initial brightness a, and the value of k×a may be determined as the target brightness of the second pixel.
It should be noted that, in the embodiment of the present application, the values of the offset b and the gain coefficient k may be set according to actual needs, where the values of the offset b and the gain coefficient k are not further limited.
In another case, the luminance of the second pixel may be subjected to a reduction process, where the reduction process includes:
if the marking information corresponding to each difference value is the second marking information, that is, each difference value is greater than the first threshold value and the brightness of the first pixel is lower than the brightness of each adjacent pixel, the brightness of the second pixel needs to be reduced, and the reduced brightness is determined as the target brightness of the second pixel.
Or,
if the marking information corresponding to each difference value comprises third marking information, other non-third marking information is second marking information, and the number of the other non-third marking information is larger than a second threshold value, the brightness of the second pixel is reduced, and the reduced brightness is determined as the target brightness of the second pixel.
It is understood that in the embodiment of the present application, reducing the luminance of the second pixel means further reducing the luminance of the second pixel based on the initial luminance of the second pixel. For example, when determining the initial brightness of the second pixel, the average gray level and the histogram of the image to be displayed may be calculated first, and the average reply and the histogram may be combined to determine the initial brightness of the second pixel.
For example, when the brightness of the second pixel is reduced and the reduced brightness is determined as the target brightness of the second pixel, at least two possible implementations may be included as well:
in one possible implementation, the luminance of the second pixel may be increased by means of an offset, and the increased luminance is determined as the target luminance of the second pixel. The specific process is as follows: the offset c may be preset to be smaller than 0, and may be increased on the basis of the initial brightness a, assuming that the initial brightness of the second pixel is a, and the value of a+c is determined as the target brightness of the second pixel.
In another possible implementation, the luminance of the second pixel may be increased by means of a gain factor, and the increased luminance is determined as the target luminance of the second pixel. The specific process is as follows: different gain coefficients m may be preset, m is smaller than 1, and assuming that the initial brightness of the second pixel is a, the gain coefficient m may be multiplied on the basis of the initial brightness a, and the value of m×a is determined as the target brightness of the second pixel.
It should be noted that, in the embodiment of the present application, the values of the offset c and the gain coefficient m may be set according to actual needs, where the values of the offset c and the gain coefficient m are not further limited.
After the brightness of the second pixel is adjusted to the target brightness, the image to be displayed can be displayed by the first display and the second display with adjusted brightness, namely, the following step d is executed:
and d, displaying the image to be displayed through the first display and the second display with the adjusted brightness.
It can be understood that when the image to be displayed is displayed through the first display and the second display with adjusted brightness, the image to be displayed is still the initially received image to be displayed, and the brightness of the first pixel in the image to be displayed is not changed.
It can be seen that, in the embodiment of the present application, when an image is displayed by the screen-overlapping display device, the image to be displayed may be acquired first; the image to be displayed comprises a plurality of first pixels; determining, for each first pixel, a difference between a color value of the first pixel and a color value of each of a plurality of adjacent pixels; if the brightness of the second pixel is determined to be adjusted according to the difference value between the color value of the first pixel and the color value of each adjacent pixel, determining the target brightness of the second pixel, and adjusting the brightness of the second pixel to be the target brightness; and displaying the image to be displayed through the first display and the second display with the adjusted brightness. Therefore, the brightness of the pixels in the display arranged below is purposefully adjusted based on the difference value between the color value of the first pixel and the color value of each adjacent pixel by analyzing the color value of the first pixel in the image to be displayed, so that the definition of the image display can be improved to a certain extent when the image to be displayed is displayed through the first display and the second display with the adjusted brightness.
Fig. 4 is a flowchart of an image display definition adjusting method according to an embodiment of the present application, for example, referring to fig. 4, the image display definition adjusting method may include:
s401, acquiring an image to be displayed; wherein the image to be displayed comprises a plurality of first pixels.
S402, determining a difference value between a color value of each first pixel and a color value of each adjacent pixel in a plurality of adjacent pixels for each first pixel; determining whether to adjust the brightness of a second pixel corresponding to the first pixel in the second display according to the difference value between the color value of the first pixel and the color value of each adjacent pixel; wherein the pixels in the image to be displayed are in one-to-one correspondence with the pixels in the second display.
S403, if the brightness of the second pixel is determined to be adjusted, determining the target brightness of the second pixel, and adjusting the brightness of the second pixel to be the target brightness.
S404, displaying the image to be displayed through the first display and the second display with the adjusted brightness.
In one possible implementation, determining a difference between a color value of a first pixel and a color value of each of a plurality of neighboring pixels includes:
A first maximum value in the first pixel color value and a second maximum value in each neighboring pixel color value are determined, respectively.
Differences between the first maximum and the second maximum of the color values of the adjacent pixels are determined, respectively.
In one possible implementation, determining whether to adjust the brightness of a second pixel in the second display corresponding to the first pixel according to a difference between the color value of the first pixel and the color value of each neighboring pixel includes:
respectively determining the mark information corresponding to each difference value according to the difference value between the color value of the first pixel and the color value of each adjacent pixel; wherein different marking information is used to mark differences in different ranges.
And determining whether to adjust the brightness of the second pixel according to the marking information corresponding to each difference value.
In one possible implementation manner, determining, according to differences between the color value of the first pixel and the color value of each adjacent pixel, the label information corresponding to each difference includes:
for each difference value, if the difference value is larger than a first threshold value and the brightness of a first pixel is higher than the brightness of an adjacent pixel corresponding to the difference value, determining the marking information corresponding to the difference value as first marking information; or,
If the difference value is larger than the first threshold value and the brightness of the first pixel is lower than the brightness of the adjacent pixel corresponding to the difference value, determining the mark information corresponding to the difference value as second mark information; or,
if the difference value is smaller than or equal to the first threshold value, determining the marking information corresponding to the difference value as third marking information.
In one possible implementation manner, determining whether to adjust the brightness of the second pixel according to the marking information corresponding to each difference value includes:
if the marking information corresponding to each difference value is the first marking information; or,
if the marking information corresponding to each difference value is the second marking information; or,
if the marking information corresponding to each difference value comprises third marking information, other non-third marking information is the first marking information or the second marking information, and the number of the other non-third marking information is larger than a second threshold value, the brightness of the second pixel is determined to be adjusted.
In one possible implementation, determining the target brightness of the second pixel includes:
if the marking information corresponding to each difference value is the first marking information; or,
if the marking information corresponding to each difference value comprises third marking information, other non-third marking information is first marking information, and the number of the other non-third marking information is larger than a second threshold value, increasing the brightness of the second pixel, and determining the increased brightness as the target brightness of the second pixel;
If the marking information corresponding to each difference value is the second marking information; or,
if the marking information corresponding to each difference value comprises third marking information, other non-third marking information is second marking information, and the number of the other non-third marking information is larger than a second threshold value, the brightness of the second pixel is reduced, and the reduced brightness is determined as the target brightness of the second pixel.
In one possible implementation manner, the method for adjusting the image display definition may further include:
determining a complex region in an image to be displayed; pixels in the complex region are determined as a plurality of first pixels.
The implementation principle and the beneficial effects of the image display definition adjusting method shown in the embodiment of the application are similar to those of the screen-overlapping display device, and can be seen, and the detailed description is omitted here.
In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the modules is merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple modules may be combined or integrated into another system, or some features may be omitted or not performed. 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 modules, which may be in electrical, mechanical, or other forms.
The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional module in each embodiment of the present application may be integrated in one processing unit, or each module may exist alone physically, or two or more modules may be integrated in one unit. The units formed by the modules can be realized in a form of hardware or a form of hardware and software functional units.
The integrated modules, which are implemented in the form of software functional modules, may be stored in a computer readable storage medium. The software functional module is stored in a storage medium, and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (english: processor) to perform some of the steps of the methods described in the embodiments of the present application.
Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the method embodiments described above may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer readable storage medium. The program, when executed, performs steps including the method embodiments described above; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (4)
1. A stacked display device, comprising:
a first display and a second display disposed below the first display, the first display and the second display configured to display an image screen and a user interface;
A controller coupled to the first display and the second display, the controller configured to:
acquiring an image to be displayed; wherein the image to be displayed comprises a plurality of first pixels;
determining, for each first pixel, a difference between a color value of the first pixel and a color value of each adjacent pixel of a plurality of adjacent pixels; determining whether to adjust the brightness of a second pixel corresponding to the first pixel in the second display according to the difference value between the color value of the first pixel and the color value of each adjacent pixel; wherein the pixels in the image to be displayed are in one-to-one correspondence with the pixels in the second display;
if the brightness of the second pixel is determined to be adjusted, determining the target brightness of the second pixel, and adjusting the brightness of the second pixel to be the target brightness;
displaying the image to be displayed through the first display and the second display with the adjusted brightness;
the controller is specifically configured to:
determining a first maximum value in the first pixel color value and a second maximum value in each adjacent pixel color value respectively;
determining a difference between the first maximum value and a second maximum value in the color values of the adjacent pixels respectively;
The controller is specifically configured to:
respectively determining mark information corresponding to each difference value according to the difference value between the color value of the first pixel and the color value of each adjacent pixel; wherein, different marking information is used for marking the difference values in different ranges;
determining whether to adjust the brightness of the second pixel according to the marking information corresponding to each difference value;
the controller is specifically configured to:
for each difference value, if the difference value is larger than a first threshold value and the brightness of the first pixel is higher than the brightness of the adjacent pixel corresponding to the difference value, determining the marking information corresponding to the difference value as first marking information; or,
if the difference value is larger than a first threshold value and the brightness of the first pixel is lower than the brightness of the adjacent pixel corresponding to the difference value, determining the mark information corresponding to the difference value as second mark information; or,
if the difference value is smaller than or equal to a first threshold value, determining that the marking information corresponding to the difference value is third marking information;
the controller is specifically configured to:
if the marking information corresponding to each difference value is the first marking information; or,
if the marking information corresponding to each difference value is the second marking information; or,
If the marking information corresponding to each difference value comprises third marking information, other non-third marking information is the first marking information or the second marking information, and the number of the other non-third marking information is larger than a second threshold value, the brightness of the second pixel is determined to be adjusted.
2. The overlay display device of claim 1, wherein the controller is specifically configured to:
if the marking information corresponding to each difference value is the first marking information; or,
if the marking information corresponding to each difference value comprises third marking information, other non-third marking information is first marking information, and the number of the other non-third marking information is larger than a second threshold value, increasing the brightness of the second pixel, and determining the increased brightness as the target brightness of the second pixel;
if the marking information corresponding to each difference value is the second marking information; or,
if the marking information corresponding to each difference value comprises third marking information, other non-third marking information is second marking information, and the number of the other non-third marking information is larger than a second threshold value, the brightness of the second pixel is reduced, and the reduced brightness is determined as the target brightness of the second pixel.
3. The stacked screen display device of claim 1 or 2, wherein the controller is further configured to:
determining a complex region in the image to be displayed;
and determining the pixels in the complex region as the plurality of first pixels.
4. A method for adjusting the sharpness of an image display, which is applied to a screen-superposed display device, the screen-superposed display device including a first display and a second display disposed below the first display, the method comprising:
acquiring an image to be displayed; wherein the image to be displayed comprises a plurality of first pixels;
determining, for each first pixel, a difference between a color value of the first pixel and a color value of each adjacent pixel of a plurality of adjacent pixels; determining whether to adjust the brightness of a second pixel corresponding to the first pixel in the second display according to the difference value between the color value of the first pixel and the color value of each adjacent pixel; wherein the pixels in the image to be displayed are in one-to-one correspondence with the pixels in the second display;
if the brightness of the second pixel is determined to be adjusted, determining the target brightness of the second pixel, and adjusting the brightness of the second pixel to be the target brightness;
Displaying the image to be displayed through the first display and the second display with the adjusted brightness;
the determining a difference between the color value of the first pixel and the color value of each of a plurality of neighboring pixels includes:
determining a first maximum value in the first pixel color value and a second maximum value in each adjacent pixel color value respectively;
determining a difference between the first maximum value and a second maximum value in the color values of the adjacent pixels respectively;
the determining whether to adjust the brightness of the second pixel corresponding to the first pixel in the second display according to the difference value between the color value of the first pixel and the color value of each adjacent pixel includes:
respectively determining mark information corresponding to each difference value according to the difference value between the color value of the first pixel and the color value of each adjacent pixel; wherein, different marking information is used for marking the difference values in different ranges;
determining whether to adjust the brightness of the second pixel according to the marking information corresponding to each difference value;
the determining the marking information corresponding to each difference value according to the difference value between the color value of the first pixel and the color value of each adjacent pixel includes:
For each difference value, if the difference value is larger than a first threshold value and the brightness of the first pixel is higher than the brightness of the adjacent pixel corresponding to the difference value, determining the marking information corresponding to the difference value as first marking information; or,
if the difference value is larger than a first threshold value and the brightness of the first pixel is lower than the brightness of the adjacent pixel corresponding to the difference value, determining the mark information corresponding to the difference value as second mark information; or,
if the difference value is smaller than or equal to a first threshold value, determining that the marking information corresponding to the difference value is third marking information;
if the marking information corresponding to each difference value is the first marking information; or,
if the marking information corresponding to each difference value is the second marking information; or,
if the marking information corresponding to each difference value comprises third marking information, other non-third marking information is the first marking information or the second marking information, and the number of the other non-third marking information is larger than a second threshold value, the brightness of the second pixel is determined to be adjusted.
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