CN115586877A - Image quality adjusting method and device, electronic equipment and computer readable storage medium - Google Patents

Image quality adjusting method and device, electronic equipment and computer readable storage medium Download PDF

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Publication number
CN115586877A
CN115586877A CN202110760322.6A CN202110760322A CN115586877A CN 115586877 A CN115586877 A CN 115586877A CN 202110760322 A CN202110760322 A CN 202110760322A CN 115586877 A CN115586877 A CN 115586877A
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China
Prior art keywords
display
display parameter
electronic device
format
video data
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CN202110760322.6A
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Chinese (zh)
Inventor
罗君玲
王圆臻
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN202110760322.6A priority Critical patent/CN115586877A/en
Publication of CN115586877A publication Critical patent/CN115586877A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/44008—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The embodiment of the application relates to the technical field of images, and discloses an image quality adjusting method and device, electronic equipment and a computer readable storage medium, wherein the method can be applied to the electronic equipment and comprises the following steps: when detecting that the format of the video data to be played is switched, if the switched video data is in a first format, acquiring image information corresponding to the switched video data; and determining a corresponding first display parameter according to the image information, and adjusting the display parameter of the electronic equipment to the first display parameter. By implementing the image quality adjusting method disclosed by the embodiment of the application, the display effect of the video image can be improved.

Description

Image quality adjusting method and device, electronic equipment and computer readable storage medium
Technical Field
The present application relates to the field of image technologies, and in particular, to a method and an apparatus for adjusting image quality, an electronic device, and a computer-readable storage medium.
Background
With the rapid development of the image technology, video images nowadays develop into a plurality of image formats, for example: a High-Dynamic Range image (HDR), a Standard Dynamic Range image (SDR), and the like. Video images of different formats are widely used in different usage scenarios.
In practice, it is found that different formats of video images are adapted to different display parameters, so that if the electronic device uses display parameters that are not adapted to the video images, the electronic device will display the video images on the electronic device with poor effect.
Disclosure of Invention
The embodiment of the application discloses an image quality adjusting method and device, electronic equipment and a computer readable storage medium, which can improve the display effect of a video image.
A first aspect of the present embodiment discloses a method for adjusting image quality, which is applied to an electronic device, and the method includes:
when detecting that the format of video data to be played is switched, if the switched video data is in a first format, acquiring image information corresponding to the switched video data;
and determining a corresponding first display parameter according to the image information, and adjusting the display parameter of the electronic equipment to the first display parameter.
A second aspect of the embodiments of the present application discloses an image quality adjusting apparatus, which is applied to an electronic device, the image quality adjusting apparatus including:
the device comprises an acquisition unit, a display unit and a display unit, wherein the acquisition unit is used for acquiring image information corresponding to video data to be played if the video data to be played is detected to be in a first format;
and the adjusting unit is used for determining a corresponding first display parameter according to the image information and adjusting the display parameter of the electronic equipment to the first display parameter.
A third aspect of an embodiment of the present application discloses an electronic device, including:
a memory storing executable program code;
a processor coupled with the memory;
the processor calls the executable program code stored in the memory to execute the image quality adjustment method disclosed by the first aspect of the embodiment of the application.
A fourth aspect of the present disclosure is a computer-readable storage medium storing a computer program, where the computer program enables a computer to execute the image quality adjustment method disclosed in the first aspect of the present disclosure.
A fifth aspect of embodiments of the present application discloses a computer program product, which, when run on a computer, causes the computer to perform part or all of the steps of any one of the methods of the first aspect of embodiments of the present application.
A sixth aspect of embodiments of the present application discloses an application publishing platform, where the application publishing platform is configured to publish a computer program product, where the computer program product, when running on a computer, causes the computer to perform part or all of the steps of any one of the methods of the first aspect of the embodiments of the present application.
Compared with the related art, the embodiment of the application has the following beneficial effects:
by implementing the embodiment of the application, the electronic device can acquire the image information corresponding to the switched video signal when detecting that the format of the video data to be played is switched and the switched video data is in the first format, and then the electronic device can determine the first display parameter suitable for the video data according to the image information and adjust the display parameter of the electronic device to the first display parameter, so that the display parameter of the electronic device is more suitable for the video data, and the display effect of the video image corresponding to the switched video data can be improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic flowchart illustrating an image quality adjustment method according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart illustrating another image quality adjustment method according to an embodiment of the present disclosure;
fig. 3 is a schematic flowchart illustrating another image quality adjustment method according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an image quality adjustment apparatus according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of another image quality adjustment apparatus disclosed in the present embodiment;
fig. 6 is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application.
Detailed Description
The technical solutions in 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 obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
It should be noted that the terms "first", "second", "third" and "fourth" etc. in the description and claims of the present application are used for distinguishing different objects, and are not used for describing a specific order. The terms "comprises," "comprising," and "having," and any variations thereof, of the embodiments of the present application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the application discloses an image quality adjusting method and device, electronic equipment and a computer readable storage medium, which can improve the display effect of a video image.
The technical solution of the present application will be described in detail with reference to specific embodiments.
In order to more clearly describe the image quality adjustment method and apparatus, the electronic device, and the computer-readable storage medium disclosed in the embodiments of the present application. First, an application scenario applicable to the image quality adjustment method is introduced, and optionally, the image quality adjustment method may be applied to various electronic devices, for example: a television, a display, a mobile phone, a tablet computer, a wearable device, etc., but not limited thereto.
In practice, it has been found that with the rapid development of image technology, video data nowadays develops into a plurality of formats, such as: high-Dynamic Range image (HDR), standard Dynamic Range image (SDR), and the like. For video data with different formats, the electronic device usually displays the video data with the same image mode, taking the video data with HDR format and the video data with SDR format as an example, because color gamut and contrast of the video data with HDR format and the video data with SDR format are different, if the video data with HDR format is played by using the display parameters corresponding to the video data with SDR format, the display effect of the video image included in the video data with HDR format on the electronic device is poor.
By implementing the image quality adjusting method disclosed by the embodiment of the application, when it is detected that the format of the video data to be played is switched, the image information corresponding to the switched video signal can be acquired, so that the first display parameter suitable for the video data is determined according to the image information, and the display parameter of the electronic device is adjusted to the first display parameter, so that the display effect of the video image included in the video data is improved. In addition, the electronic equipment can automatically execute the image quality adjusting method when detecting that the format of the video data is switched, manual adjustment by a user is not needed, and the intelligent degree of the electronic equipment is improved.
Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a method for adjusting image quality according to an embodiment of the present disclosure, where the method for adjusting image quality is applicable to an electronic device, such as a television, a display, a mobile phone, a tablet computer, or a wearable device, and the method is not limited herein. The image quality adjusting method can comprise the following steps:
102. when detecting that the format of the video data to be played is switched, if the switched video data is in the first format, acquiring image information corresponding to the switched video data.
In the embodiment of the present application, the video data to be played refers to a sequence of multiple frames of continuous images compressed into a certain format. Optionally, the video data may be obtained by shooting by an imaging device (e.g., a camera) by the electronic device, or may be obtained by the electronic device from the internet or other electronic devices, which is not limited herein.
In the embodiment of the application, the electronic device may detect whether the format of the video data to be played is switched in real time through the driving layer, and if the driving layer detects that the format of the video data to be played is switched, the driving layer may send format switching information (the format switching information may include the format of the switched video data) to the processor, and then the processor may determine that the format of the video data to be played is switched when receiving the format switching information.
In the embodiment of the present application, the format of the video data refers to an image format of a video image included in the video data, for example: HDR format, SDR format, etc., without limitation. It will be appreciated that different formats of video data files are typically distinguished by different identification information (e.g., file suffix, coding information), so each format of video data typically corresponds to one type of identification information. Alternatively, if the electronic device detects that the identification information corresponding to the video data to be played is switched, it may be determined that the format of the video data to be played is switched. For example, if the file suffix of the video data in HDR format is ". HDR" and the file suffix of the video data in SDR format is ". SDR", the electronic device may determine that the format of the video data to be played is switched when the electronic device detects that the file suffix of the video data to be played is switched from ". HDR" to ". SDR" or from ". SDR" to ". HDR".
In practice, it is found that, since some formats of video data (for example, HDR format video data, which is described below by taking HDR format video data as an example, and should not be limited by the embodiment of the present application) can record a large range of color gamut and contrast, the range of colors and brightness that can be presented by a video image included in HDR format video data is also large. It is obviously not sufficient to set only one set of display parameters for video data for HDR format.
Therefore, if the first format is a video format capable of recording a relatively large color gamut and a relatively large contrast range, when the electronic device detects that the switched video data is in the first format, the electronic device may acquire image information corresponding to the video data in the first format, and then the electronic device may determine, according to the image information, a brightness range, a contrast range, and the like that can be presented by a video image included in the video data in the first format, and further determine, according to the brightness range and/or the contrast range, display parameters suitable for the video data in the first format.
104. And determining a corresponding first display parameter according to the image information, and adjusting the display parameter of the electronic equipment to be the first display parameter.
In practice, HDR images are found to have a larger recordable color gamut (referred to as color range) and contrast range than SDR images, so HDR images can show more colors and image details. Resulting in the display parameter requirements of the electronic device being different for video data in HDR and SDR formats. The display parameters of the electronic device may include one or more of brightness, contrast, color gamut, resolution, and refresh rate, which are not limited herein. It can be understood that the video image included in the video data is finally displayed on the display screen of the electronic device, so the setting condition of the display parameter of the electronic device will affect the display effect of the video image. When the electronic device detects that the format of the video data to be played is switched, the electronic device may adjust the display parameters of the electronic device according to the switched format of the video data.
In one embodiment, the electronic device may determine a first display parameter applicable to the video data according to image information corresponding to the video data. Optionally, the image information corresponding to the video data may include various information for describing image features, including but not limited to one or more of image brightness information, image color information, and image resolution information, which is not limited herein.
In another embodiment, the electronic device may set multiple sets of second display parameters in advance, and then the electronic device may determine corresponding first display parameters from the multiple sets of second display parameters according to the image information, so that the determination speed of the first display parameters may be increased, and the adjustment efficiency of the image quality adjustment method may be increased. In yet another embodiment, the electronic device may determine the corresponding first display parameter in real time according to the image information. The first display parameter determined by the electronic equipment in real time and the video data after switching have higher adaptability, so that the display effect of the video data on the electronic equipment can be improved.
By implementing the method disclosed in each embodiment, when it is detected that the format of the video data to be played is switched and the switched video data is in the first format, the image information corresponding to the switched video signal is acquired, and then the electronic device can determine the first display parameter suitable for the video data according to the image information and adjust the display parameter of the electronic device to the first display parameter, so that the display parameter of the electronic device is more suitable for the video data, and the display effect of the video image corresponding to the switched video data can be improved.
Referring to fig. 2, fig. 2 is a schematic flow chart illustrating another image quality adjustment method disclosed in the present embodiment, which may be applied to an electronic device, such as a television, a display, a mobile phone, a tablet computer, or a wearable device, and is not limited herein. The image quality adjusting method can comprise the following steps:
202. and determining multiple groups of second display parameters according to the equipment parameters of the electronic equipment, wherein the multiple groups of second display parameters respectively correspond to different brightness ranges.
In practice, it is found that the adjustment ranges of the display parameters of different electronic devices are different, for example, the adjustment ranges of the display parameters of an electronic device with stronger image processing capability (e.g., a television, a desktop computer) and an electronic device with weaker image processing capability (e.g., a smart watch, a vehicle-mounted screen, etc.) are different. The adjustment range of the display parameters of the electronic device with different types of display screens is different, for example: the adjustment ranges of Display parameters of an OLED (Organic Light-Emitting semiconductor) Display and an LCD (Liquid Crystal Display) are different.
Alternatively, the electronic device may determine multiple sets of second display parameters according to device parameters of the electronic device (including, but not limited to, type information of the electronic device, type information of a display screen of the electronic device, processor information of the electronic device, and the like, which are not limited herein), so that the determined display parameters are more suitable for functions of the electronic device, and thus a video image included in the video data can present a better display effect on the electronic device.
In an embodiment, the electronic device may determine the plurality of sets of second display parameters according to type information of a display screen built in the electronic device.
Optionally, the electronic device may determine type information of a display screen of the electronic device (for example, an OLED screen, an LCD screen, etc., which is not limited herein) according to device parameters of the electronic device; since it is found in practice that the adjustment ranges of the display parameters of different types of display screens are different, for example: the contrast adjustment range of the OLED screen is larger than that of the LCD screen. In order to enable the display parameters obtained by subsequent adjustment to exert the performance of the display screen adopted by the electronic equipment as much as possible, the electronic equipment can determine the adjustment range of the display parameters of the display screen according to the type information of the display screen; and the electronic device can determine multiple groups of second display parameters within the determined adjustment range of the display parameters of the display screen.
By implementing the method, the display parameters capable of exerting the performance of the display screen adopted by the electronic equipment as much as possible can be determined according to the type information of the display screen of the electronic equipment, so that the display effect of the video image on the display screen can be improved.
In another embodiment, each set of second display parameters determined by the electronic device may have a positive correlation (e.g., a direct proportional relationship) with the average value of the corresponding luminance range, so that when the video data is brighter, the electronic device increases the display luminance of the image corresponding to the video data on the display screen; and otherwise, when the video data is darker, reducing the display brightness of the image corresponding to the video data on the display screen so that the display effect is more consistent with the effect which the video data wants to express.
In this embodiment of the application, the plurality of sets of second display parameters may respectively correspond to different ranges of image parameters, optionally, the plurality of sets of second display parameters may respectively correspond to different ranges of brightness, or the plurality of sets of second display parameters may respectively correspond to different ranges of contrast, which is not limited herein. For example, it is assumed that the electronic device may be provided with three sets of display parameters, wherein the first set of display parameters corresponds to a luminance range with luminance greater than 400 nits, the second set of display parameters corresponds to a luminance range from 200 nits to 400 nits, and the third set of display parameters corresponds to a luminance range with luminance less than 200 nits. Therefore, the subsequent electronic device can determine the display parameters suitable for the video data according to the brightness range in which the brightness corresponding to the video data is located.
204. When detecting that the format of the video data to be played is switched, if the switched video data is in the first format, acquiring image information corresponding to the switched video data, wherein the image information comprises image brightness information.
In the embodiment of the present application, it is considered that luminance information of a video image included in video data has a large influence on a viewing experience. Alternatively, the electronic device may obtain image brightness information corresponding to the switched video data when detecting that the format of the video data to be played is switched.
Optionally, the image brightness information corresponding to the video data may include a target average brightness corresponding to a video image with a maximum average brightness (that is, an average brightness of pixel points included in the video image) in multiple frames of video images included in the video data. It is understood that the target average brightness represents an upper brightness limit that can be displayed by the video data, so that the adjusted display parameters can be adapted to the video data as long as the subsequently adjusted display parameters can satisfy the target average brightness. Therefore, the display parameters of the electronic equipment are adjusted by taking the target average brightness corresponding to the video image with the largest average brightness in the video data as an adjustment standard, so that the adaptation degree of the adjusted display parameters and the video data can be improved, and the display effect of the video image corresponding to the video data can be improved.
206. And determining a target brightness range to which the image brightness information included in the image information belongs.
As described above, the image luminance information may include the target average luminance corresponding to the video image having the largest average luminance among the plurality of frames of video images included in the video data. Alternatively, the electronic device may decode multiple frames of video images from the video data, calculate the average brightness of each frame of video image, and determine the maximum average brightness as the image brightness information corresponding to the switched video data from the average brightness corresponding to each frame of video image.
And the electronic equipment can determine the target brightness range to which the image brightness information belongs from the brightness ranges respectively corresponding to the multiple groups of second display parameters. For example, if the image brightness information corresponding to the switched video data is 300 nits, the image brightness information corresponding to the switched video data is within the brightness range corresponding to the second set of display parameters.
208. And determining a second display parameter corresponding to the target brightness range from the plurality of groups of second display parameters as a first display parameter corresponding to the image information, and adjusting the display parameter of the electronic equipment to the first display parameter.
In this embodiment, after determining the target brightness range, the electronic device may determine, from the multiple sets of second display parameters, a second display parameter corresponding to the target brightness range as the first display parameter corresponding to the image information.
In an embodiment, the electronic device may first determine whether a first display parameter corresponding to a target brightness range is stored in the electronic device, and if the first display parameter corresponding to the target brightness range is stored in the electronic device, directly determine the first display parameter from the display parameters stored in the electronic device; if the first display parameter corresponding to the target brightness range is not stored, the electronic device can determine the corresponding first display parameter in real time according to the image brightness information corresponding to the switched video data, so that the display parameter of the electronic device can be adjusted to be adaptive to the first display parameter of the switched video data, and the display effect of the video image included in the video data is further ensured.
In practice, it is found that when the electronic device plays video data, the environment around the electronic device may also affect the above-mentioned display effect of the video image corresponding to the video data on the electronic device. Optionally, after determining the corresponding first display parameter according to the image information, the electronic device may obtain, in real time, environment information around the electronic device, which includes but is not limited to: ambient brightness information, ambient temperature information, ambient humidity information, and the like; and the electronic device can adjust the first display parameter according to the environmental information around the electronic device to obtain the adjusted first display parameter.
By implementing the method, the electronic equipment can adjust the determined first display parameter according to the environmental information around the electronic equipment, so that the adjusted first display parameter is more attached to the environment around the electronic equipment, and the influence of the environment around the electronic equipment on the display effect of the video image on the electronic equipment is reduced.
In an embodiment, the electronic device may obtain ambient brightness information included in the ambient information, and then the electronic device may determine a brightness difference between the ambient brightness information around the electronic device and an ambient brightness threshold (the ambient brightness threshold may be an optimal ambient brightness when a user views a display screen of the electronic device, and a specific value may be set by a developer according to a large amount of development data, or may be set by the user, which is not limited herein).
And the electronic device can adjust the first display parameter according to the parameter adjustment range corresponding to the brightness difference value to obtain the adjusted first display parameter. The parameter adjustment amplitude can be in positive correlation with the brightness difference, that is, the larger the brightness difference is, the larger the parameter adjustment amplitude is, and the smaller the brightness difference is, so that the adjusted first display parameter can satisfy various brightness differences, and the display effect of subsequent video data on the electronic device can be ensured.
For example, if the ambient brightness threshold is 300 lux (light unit), if the ambient brightness information around the sub-device is 400 lux, the brightness difference is 100 lux, and the electronic device may determine a parameter adjustment range corresponding to 100 lux, and adjust the first display parameter according to the parameter adjustment range to obtain the adjusted first display parameter.
By implementing the method, the electronic device can determine the adjustment ranges of the plurality of first display parameters according to the difference between the ambient brightness around the electronic device and the ambient brightness threshold, so that the adjusted first display parameters can meet a larger brightness difference, and the display effect of the subsequent video data on the electronic device can be ensured.
In an embodiment, after determining the corresponding parameter adjustment range according to the brightness difference, the electronic device may further determine whether the ambient brightness information is greater than an ambient brightness threshold; if the ambient brightness information is greater than the ambient brightness threshold, it is indicated that the ambient brightness of the electronic device is brighter at present, which may affect the user to watch, and for this, the electronic device may increase the first display parameter according to the parameter adjustment range; and if the ambient brightness information is smaller than the ambient brightness threshold, it indicates that the ambient brightness of the electronic device is dark, and in order to prevent the too bright video image from damaging the eyes of the user, the electronic device may reduce the first display parameter according to the parameter adjustment range. Of course, if the ambient brightness information is equal to the ambient brightness threshold, the electronic device may not adjust the first display parameter.
In one embodiment, the electronic device may collect ambient brightness information around the electronic device through a built-in light-sensitive sensor. Optionally, when the electronic device determines that the ambient brightness information is greater than the ambient brightness threshold, the electronic device may determine whether a light-emitting device (e.g., an electric lamp or a flash light of another electronic device) in communication connection with the electronic device is in a light-emitting state, and if the light-emitting device is in the light-emitting state, the electronic device may send a warning message to remind a user to turn off the light-emitting device. Or send a control signal to the lighting means over the communication connection to control the lighting means to turn off.
Optionally, when the electronic device determines that the light-emitting device is in the light-emitting state, it may further determine whether the light-emitting direction of the light-emitting device points to the display screen of the electronic device; if so, the electronic equipment sends out reminding information to remind the user to turn off the light-emitting device. Or send a control signal to the lighting means over the communication connection to control the lighting means to turn off.
By implementing the method, when the electronic equipment judges that the ambient brightness information is greater than the ambient brightness threshold value, the light-emitting device which may cause the ambient brightness to be too bright can be turned off so as to reduce the ambient brightness around the electronic equipment, and further the electronic equipment does not need to improve the brightness of the display screen by improving the display parameters, so that the power consumption of the electronic equipment can be reduced, and in addition, the lower display brightness can also protect the eyes of a user.
Optionally, the electronic device may further include an imaging device (e.g., a camera, an infrared sensor, etc.) built therein, and the electronic device may obtain the first position information of the light-emitting device through the imaging device, and then the electronic device may determine whether the light emission direction of the light-emitting device points to the display screen of the electronic device according to the first position information of the light-emitting device and the second position information of the electronic device.
In another embodiment, when the electronic device determines that the ambient brightness information is smaller than the ambient brightness threshold, it may be determined whether the photosensor of the electronic device is shielded, and if the photosensor of the electronic device is shielded, the electronic device may send a prompt to prompt a user to remove an object shielding the photosensor, so that the photosensor can normally acquire the ambient brightness around the electronic device, and a situation that the photosensor acquires brightness lower than real ambient brightness due to shielding, and then the electronic device reduces display parameters of the electronic device is avoided.
Optionally, a proximity switch (e.g., a hall sensor, a distance sensor, etc.) may be disposed in the first range around the photosensitive sensor, so that when the proximity switch detects that an object is close to the photosensitive sensor, the electronic device may determine that the photosensitive sensor is blocked.
In another embodiment, when the electronic device determines that the photosensitive sensor of the electronic device is shielded, the electronic device may time a shielding duration; if the shielding duration is less than the duration threshold (for example, 1 second, 5 seconds, 10 seconds, etc., and the specific numerical value may be set by a developer according to a great amount of development experience, which is not limited herein), the electronic device may not send a prompt message for prompting the user to remove the object shielding the light-sensitive sensor. In practice, it is found that when a user passes by from the face of the electronic device or operates the electronic device, the photosensitive sensor is shielded for a short time, and the electronic device can not send out prompt information because the shielding of the user is only short time, so that the power consumption of the electronic device can be saved.
By implementing the method disclosed in each embodiment, when it is detected that the format of the video data to be played is switched and the switched video data is in the first format, image information corresponding to the switched video signal is acquired, and then the electronic device can determine a first display parameter suitable for the video data according to the image information and adjust the display parameter of the electronic device to the first display parameter, so that the display parameter of the electronic device is more suitable for the video data, and the display effect of the video image corresponding to the switched video data can be improved; the display parameters more suitable for the display screen adopted by the electronic equipment can be determined according to the type information of the display screen of the electronic equipment, so that the display effect of the video data on the display screen can be improved; and when the video data is brighter, the display brightness of the image corresponding to the video data on the display screen can be improved, otherwise, when the video data is darker, the display brightness of the image corresponding to the video data on the display screen can be reduced, so that the display effect is more fit with the effect which the video data wants to express.
Referring to fig. 3, fig. 3 is a flowchart illustrating a further image quality adjustment method according to an embodiment of the present disclosure, where the image quality adjustment method may be applied to an electronic device, such as a television, a display, a mobile phone, a tablet computer, or a wearable device, and is not limited herein. The image quality adjusting method can comprise the following steps:
302. when detecting that the format of the video data to be played is switched, if the switched video data is in the first format, acquiring image information corresponding to the switched video data.
304. And determining a corresponding first display parameter according to the image information, and adjusting the display parameter of the electronic equipment to be the first display parameter.
In one embodiment, the display parameters of the electronic device may further include parameter values corresponding to a TMO curve, and the electronic device may adjust the parameter values corresponding to the TMO curve included in each set of display parameters so that the electronic device can meet the display standard when broadcasting the video data (for example, ST2084 standard, where ST2084 standard refers to a high dynamic range electro-optical transfer function of a mother tape production reference display of the video data, and 2084 represents a PQ curve (electro-optical transfer function), i.e., a color mapping function).
Further, the color gamut of the display parameters of the electronic device may be set to be the BT2020 standard, where the color space corresponding to the bt.2020 standard is an image signal color gamut standard that is positioned by the international telecommunication union organization (ITU) in the 4K/8K era and is also one of the standards of the ultra high definition blue light. The common blue standard uses the bt.709 color space, which covers only 35.9% of the bt.2020 color space, which is the largest color space in current display devices, covering 75.8% of the CIE 1931 color space, to enable electronic devices to display more colors.
Optionally, the display parameters of the electronic device further include a DLC dynamic contrast curve, and the electronic device may adjust the DLC curve according to image information corresponding to the video data, so as to brighten darker details in a dark scene. And the brightness of the middle and high brightness detail parts is improved under the bright scene, so that better brightness display output is achieved.
In one embodiment, the parameter values corresponding to the TMO curves in the plurality of sets of second display parameters may be set to the ST2084 standard, and the color gamut may be set to the BT2020 standard. In contrast, the electronic device may set the brightness, contrast, and DLC dynamic contrast curves in the sets of second display parameters to different values to address "bright", "standard", and "movie" scenes, e.g., in a "bright" scene, the brightness and contrast in the corresponding second display parameters may be highest; the corresponding brightness and contrast in the "standard" scene are the second order; the contrast of the corresponding luminance in the "movie" scene is minimal and is not limited herein.
306. And if the format of the video data to be played is detected to be switched from the first format to the second format, determining a third display parameter corresponding to the second format.
In the embodiment of the present application, the video data in the first format may be video data capable of recording a large color gamut and contrast range, for example, video data in an HDR format; the video data in the second format may be recorded video data having a small range of color gamut and contrast, for example, video data in SDR format.
In practice, video data (e.g., video data in SDR format) that can be recorded with a small range of color gamut and contrast ratio is found to include a video image with a small range of colors and luminances. It is sufficient to set only one set of display parameters for this purpose for the video data in the second format. That is to say, when the electronic device detects that the video data after switching is in the second format, the electronic device may directly obtain the display parameters corresponding to the video data in the second format from the stored display parameters, and does not need to determine the display parameters from the sets of display parameters according to the image information corresponding to the video data in the second format, so that power consumption of the electronic device may be reduced, and the speed of image quality adjustment may be increased.
In one embodiment, the third display parameter may be determined by the electronic device according to image information corresponding to the video data in the second format before determining the third display parameter corresponding to the second format; the format of the video data to be played may also be determined in real time when the electronic device detects that the format is switched from the first format to the second format, which is not limited herein.
In another embodiment, before the electronic device adjusts the display parameter of the electronic device to the first display parameter, the electronic device may save a fourth display parameter currently set by the electronic device. Since it is found in practice that the video data to be played in the electronic device is usually played in the second format before being switched to the first format, the fourth display parameter currently set by the electronic device is the display parameter suitable for the video data in the second format.
Alternatively, when detecting that the format of the video data to be played is switched from the first format to the second format, the electronic device may directly adjust the display parameter of the electronic device to the fourth display parameter, so that the electronic device does not need to execute the step of determining the display parameter corresponding to the video data in the second format.
308. And adjusting the display parameters of the electronic equipment to be third display parameters.
By implementing the method disclosed in each embodiment, when it is detected that the format of the video data to be played is switched and the switched video data is in the first format, image information corresponding to the switched video signal is acquired, and then the electronic device can determine a first display parameter suitable for the video data according to the image information and adjust the display parameter of the electronic device to the first display parameter, so that the display parameter of the electronic device is more suitable for the video data, and the display effect of the video image corresponding to the switched video data can be improved; when the format of the video data to be played is detected to be switched from the first format to the second format, the stored fourth display parameter is directly determined as the third display parameter corresponding to the second format, so that the electronic equipment does not need to execute the step of determining the display parameter corresponding to the video data in the second format, the power consumption of the electronic equipment can be reduced, and the speed of image quality adjustment can be increased; and when the electronic device detects that the switched video data is in the second format, the electronic device can directly acquire the display parameters corresponding to the video data in the second format from the stored display parameters without determining the display parameters from the sets of display parameters according to the image information corresponding to the video data in the second format, so that the power consumption of the electronic device can be reduced, and the speed of image quality adjustment can be increased.
Referring to fig. 4, fig. 4 is a schematic structural diagram of an image quality adjustment apparatus disclosed in an embodiment of the present application, which may be applied to an electronic device, such as a television, a display, a mobile phone, a tablet computer, or a wearable device, and is not limited herein. The image quality adjusting apparatus may include: a first obtaining unit 401 and a first adjusting unit 402, wherein:
a first obtaining unit 401, configured to, when detecting that a format of video data to be played is switched, if the switched video data is in a first format, obtain image information corresponding to the switched video data;
the first adjusting unit 402 is configured to determine a corresponding first display parameter according to the image information, and adjust the display parameter of the electronic device to the first display parameter.
By implementing the image quality adjusting device, when it is detected that the format of the video data to be played is switched and the switched video data is in the first format, the image information corresponding to the switched video signal is acquired, and then the electronic device can determine the first display parameter suitable for the video data according to the image information and adjust the display parameter of the electronic device to the first display parameter, so that the display parameter of the electronic device is more suitable for the video data, and the display effect of the video image corresponding to the switched video data can be improved.
Referring to fig. 5, fig. 5 is a schematic structural diagram of another image quality adjustment apparatus disclosed in the embodiment of the present application, which may be applied to an electronic device, such as a television, a display, a mobile phone, a tablet computer, or a wearable device, and is not limited herein. Alternatively, the image quality adjustment apparatus shown in fig. 5 may be optimized by the image quality adjustment apparatus shown in fig. 4, and compared with the image quality adjustment apparatus shown in fig. 4, the image quality adjustment apparatus shown in fig. 5 may further include: a first determination unit 403, wherein:
a first determining unit 403, configured to determine, before the first adjusting unit 402 determines the corresponding first display parameter according to the image information and adjusts the display parameter of the electronic device to the first display parameter, multiple sets of second display parameters according to the device parameter of the electronic device, where the multiple sets of second display parameters respectively correspond to different luminance ranges;
the manner in which the first adjusting unit 402 is configured to determine the corresponding first display parameter according to the image information may specifically be:
a first adjusting unit 402, configured to determine a target brightness range to which image brightness information included in the image information belongs; and determining a second display parameter corresponding to the target brightness range from the plurality of groups of second display parameters as the first display parameter corresponding to the image information.
By implementing the image quality adjusting device, the determined display parameters can be more suitable for the functions of the electronic equipment, so that the video images contained in the video data can present better display effect on the electronic equipment.
As an optional implementation manner, the manner that the first determining unit 403 is configured to determine the plurality of sets of second display parameters according to the device parameters of the electronic device may specifically be:
a first determining unit 403, configured to determine type information of a display screen of the electronic device according to a device parameter of the electronic device; determining the adjustment range of the display parameters of the display screen according to the type information of the display screen; and determining multiple groups of second display parameters in the adjusting range.
By implementing the image quality adjusting device, the display parameters which can exert the performance of the display screen adopted by the electronic equipment as much as possible can be determined according to the type information of the display screen of the electronic equipment, so that the display effect of the video image on the display screen can be improved.
As an alternative embodiment, the second display parameter has a positive correlation with the average value of the corresponding luminance range.
By implementing the image quality adjusting device, the display brightness of an image corresponding to the video data on the display screen can be improved when the video data is brighter; on the contrary, when the video data is darker, the display brightness of the image corresponding to the video data on the display screen is reduced, and further the display effect is more fit with the effect that the video data wants to express.
As an alternative embodiment, the image quality adjustment apparatus shown in fig. 5 may further include: a second obtaining unit 404 and a second adjusting unit 405, wherein:
a second obtaining unit 404, configured to obtain environment information around the electronic device after the first adjusting unit 402 determines the corresponding first display parameter according to the image information and before the first adjusting unit 402 adjusts the display parameter of the electronic device to the first display parameter;
a second adjusting unit 405, configured to adjust the first display parameter according to the environment information to obtain an adjusted first display parameter;
the way for the first adjusting unit 402 to adjust the display parameter of the electronic device to the first display parameter may specifically be:
a first adjusting unit 402, configured to adjust the display parameter of the electronic device to an adjusted first display parameter.
By implementing the image quality adjusting device, the determined first display parameter can be adjusted according to the environmental information around the electronic equipment, so that the adjusted first display parameter is more fit with the environment around the electronic equipment, and the influence of the environment around the electronic equipment on the display effect of the video image on the electronic equipment is reduced.
As an alternative embodiment, the environment information includes environment brightness information; the second adjusting unit 405 adjusts the first display parameter according to the environment information, and the manner of obtaining the adjusted first display parameter may specifically be:
a second adjusting unit 405, configured to determine a luminance difference between the ambient luminance information and the luminance threshold; and adjusting the first display parameter according to the parameter adjustment amplitude corresponding to the brightness difference value to obtain the adjusted first display parameter, wherein the parameter adjustment amplitude and the brightness difference value are in a positive correlation relationship.
By implementing the image quality adjusting device, the adjusting ranges of the plurality of first display parameters can be determined according to the difference between the ambient brightness around the electronic equipment and the ambient brightness threshold, so that the adjusted first display parameters can meet a larger brightness difference, and the display effect of the subsequent video data on the electronic equipment can be ensured.
As an alternative embodiment, the image quality adjustment apparatus shown in fig. 5 may further include: a second determining unit 406 and a third adjusting unit 407, wherein:
a second determining unit 406, configured to determine a third display parameter corresponding to the second format if it is detected that the format of the video data to be played is switched from the first format to the second format after the first adjusting unit 402 adjusts the display parameter of the electronic device to the first display parameter;
a third adjusting unit 407, configured to adjust the display parameter of the electronic device to a third display parameter.
By implementing the image quality adjusting device, when the electronic device detects that the switched video data is in the second format, the electronic device can directly acquire the display parameters corresponding to the video data in the second format from the stored display parameters without determining the display parameters from multiple sets of display parameters according to the image information corresponding to the video data in the second format, so that the power consumption of the electronic device can be reduced, and the speed of image quality adjustment can be increased.
As an alternative embodiment, the image quality adjustment apparatus shown in fig. 5 may further include: a saving unit 408, in which:
a saving unit 408, configured to save a fourth display parameter currently set by the electronic device before the first adjusting unit 402 adjusts the display parameter of the electronic device to the first display parameter; and if the format of the video data to be played is detected to be switched from the first format to the second format, adjusting the display parameters of the electronic equipment to fourth display parameters.
By implementing the image quality adjusting device, when it is detected that the format of the video data to be played is switched from the first format to the second format, the stored fourth display parameter can be directly determined as the third display parameter corresponding to the second format, so that the electronic device does not need to execute the step of determining the display parameter corresponding to the video data in the second format, the power consumption of the electronic device can be reduced, and the speed of image quality adjustment can be increased.
As an optional implementation, the first format is a high dynamic range image format, and the second format is a standard dynamic range image format; the display parameters of the electronic device include one or more of brightness, contrast, color gamut, and resolution.
By implementing the image quality adjusting device, when it is detected that the format of the video data to be played is switched and the switched video data is in the first format, the image information corresponding to the switched video signal is acquired, and then the electronic device can determine the first display parameter suitable for the video data according to the image information and adjust the display parameter of the electronic device to the first display parameter, so that the display parameter of the electronic device is more suitable for the video data, and the display effect of the video image corresponding to the switched video data can be improved.
Referring to fig. 6, fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure.
As shown in fig. 6, the electronic device may include:
a memory 601 in which executable program code is stored;
a processor 602 coupled to a memory 601;
the processor 602 calls the executable program code stored in the memory 601 to execute the image quality adjustment method disclosed in the above embodiments.
The embodiment of the application discloses a computer-readable storage medium, which stores a computer program, wherein the computer program enables a computer to execute the image quality adjusting method disclosed in each embodiment.
The embodiment of the present application also discloses an application publishing platform, wherein the application publishing platform is used for publishing a computer program product, and when the computer program product runs on a computer, the computer is caused to execute part or all of the steps of the method in the above method embodiments.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also appreciate that the embodiments described in this specification are all alternative embodiments and that the acts and modules involved are not necessarily required for this application.
In various embodiments of the present application, it should be understood that the size of the serial number of each process described above does not mean that the execution sequence is necessarily sequential, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The integrated units, if implemented as software functional units and sold or used as a stand-alone product, may be stored in a computer accessible memory. Based on such understanding, the technical solution of the present application, which is a part of or contributes to the prior art in essence, or all or part of the technical solution, may be embodied in the form of a software product, stored in a memory, including several requests for causing a computer device (which may be a personal computer, a server, a network device, or the like, and may specifically be a processor in the computer device) to execute part or all of the steps of the above-described method of the embodiments of the present application.
It will be understood by those skilled in the art that all or part of the steps of the methods of the embodiments described above may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, including Read-Only Memory (ROM), random Access Memory (RAM), programmable Read-Only Memory (PROM), erasable Programmable Read-Only Memory (EPROM), one-time Programmable Read-Only Memory (OTPROM), electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc-Read-Only Memory (CD-ROM) or other Memory capable of storing data, a magnetic tape, or any other computer-readable medium capable of storing data.
The image quality adjustment method and apparatus, the electronic device, and the computer-readable storage medium disclosed in the embodiments of the present application are described in detail above, and a specific example is applied in the description to explain the principles and embodiments of the present application, and the description of the embodiments is only used to help understand the method and the core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (12)

1. An image quality adjustment method applied to an electronic device includes:
when detecting that the format of video data to be played is switched, if the switched video data is in a first format, acquiring image information corresponding to the switched video data;
and determining a corresponding first display parameter according to the image information, and adjusting the display parameter of the electronic equipment to the first display parameter.
2. The method of claim 1, wherein the image information comprises image brightness information; and before the corresponding first display parameter is determined according to the image information, the method further comprises the following steps:
determining multiple groups of second display parameters according to the equipment parameters of the electronic equipment, wherein the multiple groups of second display parameters respectively correspond to different brightness ranges;
and determining a corresponding first display parameter according to the image information, including:
determining a target brightness range to which image brightness information included in the image information belongs;
and determining a second display parameter corresponding to the target brightness range from the plurality of groups of second display parameters as a first display parameter corresponding to the image information.
3. The method of claim 2, wherein determining a plurality of sets of second display parameters according to the device parameters of the electronic device comprises:
determining the type information of a display screen of the electronic equipment according to the equipment parameters of the electronic equipment;
determining the adjustment range of the display parameters of the display screen according to the type information of the display screen;
and determining multiple groups of second display parameters in the adjusting range.
4. The method according to any one of claims 2 or 3, wherein the second display parameter is positively correlated with the average value of the corresponding luminance range.
5. The method of claim 1, wherein after the determining the corresponding first display parameter from the image information and before the adjusting the display parameter of the electronic device to the first display parameter, the method further comprises:
acquiring environmental information around the electronic equipment;
adjusting the first display parameter according to the environment information to obtain an adjusted first display parameter;
and adjusting the display parameter of the electronic device to the first display parameter includes:
and adjusting the display parameter of the electronic equipment to the adjusted first display parameter.
6. The method of claim 5, wherein the environmental information comprises ambient brightness information; and the adjusting the first display parameter according to the environment information to obtain an adjusted first display parameter includes:
determining a brightness difference between the ambient brightness information and an ambient brightness threshold;
and adjusting the first display parameter according to the parameter adjustment range corresponding to the brightness difference value to obtain the adjusted first display parameter, wherein the parameter adjustment range and the brightness difference value are in a positive correlation relationship.
7. The method of claim 1, wherein after the adjusting the display parameter of the electronic device to the first display parameter, the method further comprises:
if the format of the video data to be played is detected to be switched from the first format to a second format, determining a third display parameter corresponding to the second format;
and adjusting the display parameter of the electronic equipment to be the third display parameter.
8. The method of claim 1, wherein before the adjusting the display parameter of the electronic device to the first display parameter, the method further comprises:
saving the currently set fourth display parameter of the electronic equipment;
and after the adjusting the display parameter of the electronic device to the first display parameter, the method further comprises:
and if the format of the video data to be played is detected to be switched from the first format to the second format, adjusting the display parameters of the electronic equipment to the fourth display parameters.
9. The method according to any of claims 7 or 8, wherein the first format is a high dynamic range image format and the second format is a standard dynamic range image format; the display parameters of the electronic device include one or more of brightness, contrast, color gamut, and resolution.
10. An image quality adjusting apparatus applied to an electronic device, the apparatus comprising:
the device comprises an acquisition unit, a display unit and a display unit, wherein the acquisition unit is used for acquiring image information corresponding to video data to be played if the video data to be played is detected to be in a first format;
and the adjusting unit is used for determining a corresponding first display parameter according to the image information and adjusting the display parameter of the electronic equipment to the first display parameter.
11. An electronic device comprising a memory storing executable program code, and a processor coupled to the memory; wherein the processor calls the executable program code stored in the memory to perform the method of any one of claims 1 to 9.
12. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 9.
CN202110760322.6A 2021-07-06 2021-07-06 Image quality adjusting method and device, electronic equipment and computer readable storage medium Pending CN115586877A (en)

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Application Number Priority Date Filing Date Title
CN202110760322.6A CN115586877A (en) 2021-07-06 2021-07-06 Image quality adjusting method and device, electronic equipment and computer readable storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110760322.6A CN115586877A (en) 2021-07-06 2021-07-06 Image quality adjusting method and device, electronic equipment and computer readable storage medium

Publications (1)

Publication Number Publication Date
CN115586877A true CN115586877A (en) 2023-01-10

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Country Link
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