CN110838279B - Backlight adjusting method and device - Google Patents
Backlight adjusting method and device Download PDFInfo
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- CN110838279B CN110838279B CN201810934146.1A CN201810934146A CN110838279B CN 110838279 B CN110838279 B CN 110838279B CN 201810934146 A CN201810934146 A CN 201810934146A CN 110838279 B CN110838279 B CN 110838279B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
Abstract
The application discloses a method and a device for adjusting backlight, wherein the method comprises the following steps: the electronic equipment is in the mode that automatically regulated was shaded, gathers automatically regulated's first backlight value and the second backlight value that obtains based on user's adjustment law, based on first backlight value with the second backlight value, confirms backlight adjustment factor, when detecting that environment illumination intensity changes second illumination intensity by first illumination intensity, confirms the third backlight value that second illumination intensity corresponds, wherein, third backlight value is the automatically regulated's that second illumination intensity corresponds backlight value, based on backlight adjustment factor is right the third backlight value is adjusted and is obtained satisfying that second illumination intensity corresponds the fourth backlight value of user's adjustment law. The technical problem of poor experience effect of users in the prior art is solved.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a method and an apparatus for adjusting backlight.
Background
Backlight adjustment technology has been widely applied to the display field, there are two kinds of adjustment technologies of manual regulation and automatic adjustment to the regulation in a poor light of display usually, wherein, automatic backlight adjustment technology, when environment illumination intensity changes, according to the mapping relation between environment illumination intensity and the backlight value, determine the backlight value that current environment illumination intensity corresponds, and adjust the backlight value of display, because the difference of user's individual sensitization, combine manual regulation after automatic adjustment, so that the backlight value adaptation user of display is to the demand that light intensity is bright dark. Currently, in an automatic backlight mode, a corresponding backlight adjustment factor is determined by a change in a position where a user manually drags a luminance bar, and then a backlight value of a display is adjusted based on the backlight adjustment factor. Although the backlight adjustment technology in the prior art can basically meet the requirements of a user on the brightness of illumination intensity, the backlight adjustment factor determined by the method cannot reflect that the backlight value adjusted by the user is smaller than the automatic backlight value or that the adjusted backlight value is larger than the automatic backlight value, that is, the rule of the backlight value adjusted by the user to be larger or smaller cannot be reflected, the requirements of the user on backlight value inhibition or compensation cannot be really adapted, and the experience effect of the user is poor.
Disclosure of Invention
The application provides a method and a device for adjusting backlight, which are used for solving the technical problem that the user experience effect is poor in the prior art.
In a first aspect, the present application provides a method of backlight adjustment, the method comprising: acquiring a first backlight value which is automatically adjusted and a second backlight value which is obtained based on a user adjustment rule under the mode of automatically adjusting backlight; determining a backlight adjustment factor based on the first backlight value and the second backlight value; when the environment illumination intensity is detected to be changed from a first illumination intensity to a second illumination intensity, determining a third backlight value corresponding to the second illumination intensity, wherein the third backlight value is an automatically adjusted backlight value corresponding to the second illumination intensity; and adjusting the third backlight value based on the backlight adjusting factor to obtain a fourth backlight value corresponding to the second illumination intensity and meeting the user adjusting rule.
In the embodiment that this application provided, electronic equipment is based on the first backlight value of automatically regulated and the second backlight value that user's regulation rule obtained, confirms backlight adjustment factor, and backlight adjustment factor obtains for the demand of adaptation user to the luminance of backlight value, has embodied user's use habit, and is based on reasonable backlight value is confirmed to the relation between backlight adjustment factor and the automatically regulated's backlight value, makes the adjustment to backlight value can improve user's experience effect based on user's regulation rule.
Optionally, determining a backlight adjustment factor Adj ═ (user-AutoBri)/(MaxBri-MinBri) based on the first backlight value and the second backlight value; wherein Adj is the backlight adjustment factor, user is the second backlight value, AutoBri is the first backlight value, MaxBri is the maximum backlight value, and MinBri is the minimum backlight value;
adjusting the third backlight value based on the backlight adjustment factor to obtain a fourth backlight value corresponding to the second illumination intensity and meeting the user adjustment rule, including:
taking the backlight adjusting factor as an input parameter, and adjusting the third backlight value by using the following formula to obtain a fourth backlight value corresponding to the second illumination intensity and meeting the user adjustment rule;
gamma＝3.0∧(-Adj)
Value＝AutoBri/255
AdjAutoBri＝Math.round((Value∧gamma)*255)
gamma is an intermediate coefficient of suppression compensation of the backlight value, value is a normalized value of the third backlight value, AdjAutoBri is the fourth backlight value, and math.
Alternatively, determining the backlight adjustment factor Adj ═ (user-AutoBri)/(MaxBri-MinBri) includes:
dividing a range of backlight value adjustment into a first region and a second region based on the AutoBri, wherein the range of the first region is [ MinBri, AutoBri ], and the range of the second region is [ AutoBri, MaxBri ];
detecting the area where the second backlight value is located, and if the area where the second backlight value is located is detected to be the first area, determining that the backlight adjusting factor is a negative value; otherwise, determining the backlight adjusting factor as a positive value.
Optionally, a value range of the backlight adjustment factor is [ -1,1 ].
In a second aspect, an embodiment of the present application provides an apparatus for backlight adjustment, including:
the acquisition module is used for acquiring a first backlight value which is automatically adjusted and a second backlight value which is obtained based on a user adjustment rule under the mode of automatically adjusting the backlight;
a determining module for determining a backlight adjustment factor based on the first backlight value and the second backlight value; when the environment illumination intensity is detected to be changed from a first illumination intensity to a second illumination intensity, determining a third backlight value corresponding to the second illumination intensity, wherein the third backlight value is an automatically adjusted backlight value corresponding to the second illumination intensity;
and the adjusting module is used for adjusting the third backlight value based on the backlight adjusting factor to obtain a fourth backlight value which corresponds to the second illumination intensity and meets the user adjusting rule.
Optionally, the determining module is specifically configured to determine, based on the first backlight value and the second backlight value, a backlight adjustment factor Adj ═ by (user-AutoBri)/(MaxBri-MinBri); wherein Adj is the backlight adjustment factor, user is the second backlight value, AutoBri is the first backlight value, MaxBri is the maximum backlight value, and MinBri is the minimum backlight value;
the adjusting module is specifically configured to:
taking the backlight adjusting factor as an input parameter, and adjusting the third backlight value by using the following formula to obtain a fourth backlight value corresponding to the second illumination intensity and meeting the user adjustment rule;
gamma＝3.0∧(-Adj)
Value＝AutoBri/255
AdjAutoBri＝Math.round((Value∧gamma)*255)
gamma is an intermediate coefficient of suppression compensation of the backlight Value, Value is a normalized Value of the third backlight Value, AdjAutoBri is the fourth backlight Value, and math.
Optionally, the determining module is specifically configured to:
dividing a range of backlight value adjustment into a first region and a second region based on the AutoBri, wherein the range of the first region is [ MinBri, AutoBri ], and the range of the second region is [ AutoBri, MaxBri ];
detecting the area where the second backlight value is located, and if the area where the second backlight value is located is detected to be the first area, determining that the backlight adjusting factor is a negative value; otherwise, determining the backlight adjusting factor as a positive value.
Optionally, a value range of the backlight adjustment factor is [ -1,1 ].
In a third aspect, an embodiment of the present application provides an electronic device, including:
a memory for storing instructions for execution by the processor;
a processor for executing instructions stored in a memory to perform the method of the first aspect or any one of the possible implementations of the method of the first aspect.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium, which stores computer instructions that, when executed on a computer, cause the computer to perform the method of the first aspect or any one of the possible implementations of the first aspect.
Drawings
Fig. 1 is a flowchart of a method for backlight adjustment according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a backlight adjustment factor partition structure according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a backlight adjusting apparatus according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In the solutions provided in the embodiments of the present application, the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to better understand the technical solutions, the technical solutions of the present application are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present application are detailed descriptions of the technical solutions of the present application, and are not limitations of the technical solutions of the present application, and the technical features in the embodiments and examples of the present application may be combined with each other without conflict.
Example one
The method for adjusting backlight provided by the embodiments of the present application is described in further detail below with reference to the drawings in the specification, and a specific implementation manner of the method may include the following steps (a flow of the method is shown in fig. 1):
step 101, when the electronic equipment is in an automatic backlight adjusting mode, acquiring an automatically adjusted first backlight value and a second backlight value obtained based on a user adjusting rule;
the electronic equipment comprises a touch display screen or a brightness adjusting key. The method comprises the steps that when the electronic equipment is in an automatic backlight adjusting mode, a preset mapping relation exists between ambient light intensity and an automatic backlight adjusting value, a corresponding automatic adjusting first backlight value is determined based on the ambient light intensity, the electronic equipment adjusts the backlight value to the first backlight value, due to the fact that the light sensing capacities of different users are different, the user can adjust the backlight value by dragging a brightness strip on a touch display screen on the basis of automatic backlight adjustment to obtain a second backlight value, the backlight value can also be adjusted by a brightness adjusting key to obtain the second backlight value, the electronic equipment collects the automatic adjusting first backlight value and the second backlight value obtained based on a user adjusting rule, and the user adjusting rule comprises a rule that the user is used to adjust the automatic backlight value to be larger or the automatic backlight value to be smaller.
For example, when the ambient light intensity is 500 Lux (LX), based on the mapping relationship between the ambient light intensity and the automatically adjusted backlight value, it is determined that the corresponding automatically adjusted backlight value is 20, while the backlight value of the screen is 20 too bright for the user during the use of the electronic device by the user, the user needs to manually drag a brightness bar on the touch display screen or adjust the backlight value to 15 through a brightness adjustment key to meet the brightness requirement of the user, and when the ambient light intensity is 500 Lux (LX), the electronic device automatically adjusts the first backlight value to 20 and obtains the second backlight value to 15 based on the user adjustment rule.
102, the electronic device determines a backlight adjustment factor based on the first backlight value and the second backlight value;
and the electronic equipment calculates the backlight adjusting factor according to the first backlight value and the second backlight value based on a preset algorithm in the operating system.
The backlight adjustment factor reflects a relationship between a backlight value adjusted by a user and an automatic backlight value, and specifically, the electronic device calculates the backlight adjustment factor by the following formula:
Adj＝(user-AutoBri)/(MaxBri-MinBri)
and the Adj is the backlight adjusting factor, the user is the second backlight value, the AutoBri is the first backlight value, the MaxBri is the maximum backlight value, and the MinBri is the minimum backlight value.
The electronic device sets the range of the backlight value to [ MinBri, MaxBri ] in advance, the electronic device determines a corresponding automatically-adjusted backlight value based on the ambient light intensity, a user drags a brightness bar of the electronic device to adjust the backlight value on the basis of the automatically-adjusted backlight value, the backlight value adjusted by the user may be larger than the automatically-adjusted backlight value or smaller than the automatically-adjusted backlight value, when the backlight value adjusted by the user is larger than the automatically adjusted backlight value, the electronic equipment compensates the backlight value of the display screen, when the backlight value adjusted by the user is smaller than the automatically adjusted backlight value, the electronic equipment can restrain the backlight value of the display screen, therefore, in order to determine the compensation or suppression area of the backlight value of the display screen by the electronic device, the value range of the backlight adjustment factor is determined by taking the automatically adjusted backlight value as a reference parameter.
Referring to fig. 2, the electronic device divides a backlight value adjustment range into a first region and a second region based on the AutoBri, where the first region has a range of [ MinBri, AutoBri ], the second region has a range of [ AutoBri, MaxBri ], then detects a region where the second backlight value is located, determines that the backlight adjustment factor is a negative value if the region where the second backlight value is located is detected as the first region, determines that the backlight adjustment factor is a positive value if the region where the second backlight value is located is detected as the second region, determines that the backlight adjustment factor is-1 when the user is the minimum backlight value due to the maximum backlight value of the AutoBri, determines that the backlight adjustment factor is 1 when the user is the minimum backlight value due to the minimum backlight value of the AutoBri, and further determines that the backlight adjustment factor has a value range of [ -1,1 ].
103, when the electronic equipment detects that the ambient illumination intensity is changed from a first illumination intensity to a second illumination intensity, determining a third backlight value corresponding to the second illumination intensity, wherein the third backlight value is an automatically adjusted backlight value corresponding to the second illumination intensity;
the electronic device comprises a photoelectric sensor, a photosensitive device (such as a photoresistor and a photodiode), an illumination intensity sensing switch and the like. When the electronic equipment detects that the ambient illumination intensity is changed from the first illumination intensity to the second illumination intensity through the photoelectric sensor, the photosensitive device or the illumination intensity inductive switch, an automatically-adjusted third backlight value corresponding to the second illumination intensity is determined based on a preset mapping relation between the ambient illumination intensity and the automatically-adjusted backlight value. For example, when the ambient light intensity is determined to be 300LX based on the preset mapping relationship, the corresponding automatically adjusted backlight value is 30, and when the electronic device detects that the ambient light intensity changes from 500LX to 300LX, the third backlight value can be determined to be 30.
And 104, adjusting the third backlight value by the electronic equipment based on the backlight adjusting factor to obtain a fourth backlight value corresponding to the second illumination intensity and meeting the user adjusting rule.
After the electronic equipment calculates and obtains the backlight adjusting factor based on an algorithm preset by an operating system, the electronic equipment adjusts the third backlight value by using the following formula as an input parameter to obtain a fourth backlight value corresponding to the second illumination intensity and meeting the user adjustment rule, wherein the fourth backlight value is obtained by using the backlight adjusting factor as an input parameter:
gamma＝3.0∧(-Adj)
Value＝AutoBri/255
AdjAutoBri＝Math.round((Value∧gamma)*255)
wherein gamma is an intermediate coefficient of suppression compensation of the backlight Value, Value is a normalized Value of the third backlight Value, and AdjAutoBri is the fourth backlight Value, and is used for representing the relationship between the backlight Value meeting the user adjustment rule and the automatically adjusted backlight Value and backlight adjustment factor; round () represents a calculation function that is used to represent rounding of the calculation result.
For example, the minimum backlight value MinBri of the electronic device display is set to 0 and the maximum backlight value MaxBri is 255. When the electronic device detects that the second illumination intensity of the illumination intensity is 300LX, the electronic device acquires a first backlight Value of 30 which is automatically adjusted, acquires a second backlight Value of 25 which is obtained based on a user adjustment rule, calculates a backlight adjustment factor Adj-1/51 based on a preset algorithm, determines an intermediate coefficient gamma of backlight suppression compensation to be 3.0 ^ (1/51) and a normalized Value corresponding to the backlight Value of 2/17 based on the Value of the backlight adjustment factor, and determines a fourth backlight Value adjauto bri 29 which meets the user adjustment rule based on the gamma and the Value.
In the embodiment provided by the application, the electronic equipment obtains the backlight adjusting factor based on the specific requirement of the user on the brightness of the backlight value, and determines the reasonable backlight value based on the relation between the backlight adjusting factor and the automatically adjusted backlight value, so that the adjustment on the backlight value can be based on the adjustment rule of the user, and the experience effect of the user is improved.
Example two
The embodiment of the present application provides a backlight adjusting apparatus, referring to fig. 3, the apparatus includes:
the acquisition module 301 is configured to acquire an automatically adjusted first backlight and a second backlight value obtained based on a user adjustment rule in a mode of automatically adjusting the backlight value;
a determining module 302, configured to determine a backlight adjustment factor based on the first backlight value and the second backlight value; when the environment illumination intensity is detected to be changed from a first illumination intensity to a second illumination intensity, determining a third backlight value corresponding to the second illumination intensity, wherein the third backlight value is an automatically adjusted backlight value corresponding to the second illumination intensity;
an adjusting module 303, configured to adjust the third backlight value based on the backlight adjusting factor to obtain a fourth backlight value that meets the user adjustment rule and corresponds to the second illumination intensity.
Optionally, the determining module 302 is specifically configured to determine, based on the first backlight value and the second backlight value, a backlight adjustment factor Adj ═ user-AutoBri)/(MaxBri-MinBri); wherein Adj is the backlight adjustment factor, user is the second backlight value, AutoBri is the first backlight value, MaxBri is the maximum backlight value, and MinBri is the minimum backlight value;
the adjusting module is specifically configured to:
taking the backlight adjusting factor as an input parameter, and adjusting the third backlight value by using the following formula to obtain a fourth backlight value corresponding to the second illumination intensity and meeting the user adjustment rule;
gamma＝3.0∧(-Adj)
Value＝AutoBri/255
AdjAutoBri＝Math.round((Value∧gamma)*255)
gamma is an intermediate coefficient of suppression compensation of the backlight Value, Value is a normalized Value of the third backlight Value, AdjAutoBri is the fourth backlight Value, and math.
Optionally, the determining module 302 is specifically configured to:
dividing a range of backlight value adjustment into a first region and a second region based on the AutoBri, wherein the range of the first region is [ MinBri, AutoBri ], and the range of the second region is [ AutoBri, MaxBri ];
detecting the area where the second backlight value is located, and if the area where the second backlight value is located is detected to be the first area, determining that the backlight adjusting factor is a negative value; otherwise, determining the backlight adjusting factor as a positive value.
Optionally, a value range of the backlight adjustment factor is [ -1,1 ].
EXAMPLE III
An embodiment of the present application provides an electronic device, see fig. 4, including:
a memory 401 for storing instructions executed by the processor;
the processor 402 is configured to execute the instructions stored in the memory 401 to perform the method of the first embodiment.
Example four
Embodiments of the present application provide a computer-readable storage medium, which stores computer instructions that, when executed on a computer, cause the computer to perform the method of embodiment one.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (8)
1. A method of backlight adjustment, comprising:
acquiring a first backlight value which is automatically adjusted and a second backlight value which is obtained based on a user adjustment rule under the mode of automatically adjusting backlight;
determining a backlight adjustment factor based on the first backlight value and the second backlight value;
when the environment illumination intensity is detected to be changed from a first illumination intensity to a second illumination intensity, determining a third backlight value corresponding to the second illumination intensity, wherein the third backlight value is an automatically adjusted backlight value corresponding to the second illumination intensity;
adjusting the third backlight value based on the backlight adjusting factor to obtain a fourth backlight value corresponding to the second illumination intensity and meeting the user adjusting rule;
determining a backlight adjustment factor Adj ═ (user-AutoBri)/(MaxBri-MinBri) based on the first backlight value and the second backlight value; wherein user is the second backlight value, AutoBri is the first backlight value, MaxBri is the maximum backlight value, MinBri is the minimum backlight value;
adjusting the third backlight value based on the backlight adjustment factor to obtain a fourth backlight value corresponding to the second illumination intensity and meeting the user adjustment rule, including:
taking the backlight adjusting factor as an input parameter, and adjusting the third backlight value by using the following formula to obtain a fourth backlight value corresponding to the second illumination intensity and meeting the user adjustment rule;
gamma＝3.0^(-Adj)
Value＝AutoBri/255
AdjAutoBri＝Math.round((Value^gamma)*255)
gamma is an intermediate coefficient of suppression compensation of the backlight Value, Value is a normalized Value of the third backlight Value, AdjAutoBri is the fourth backlight Value, and math.
2. The method of claim 1, wherein determining the backlight adjustment factor Adj ═ (user-AutoBri)/(MaxBri-MinBri) comprises:
dividing a range of backlight value adjustment into a first region and a second region based on the AutoBri, wherein the range of the first region is [ MinBri, AutoBri ], and the range of the second region is [ AutoBri, MaxBri ];
detecting the area where the second backlight value is located, and if the area where the second backlight value is located is detected to be the first area, determining that the backlight adjusting factor is a negative value; otherwise, determining the backlight adjusting factor as a positive value.
3. The method of claim 2, wherein the backlight adjustment factor has a value in a range of [ -1,1 ].
4. An apparatus for backlight adjustment, comprising:
the acquisition module is used for acquiring a first backlight value which is automatically adjusted and a second backlight value which is obtained based on a user adjustment rule under the mode of automatically adjusting the backlight;
a determining module for determining a backlight adjustment factor based on the first backlight value and the second backlight value; when the environment illumination intensity is detected to be changed from a first illumination intensity to a second illumination intensity, determining a third backlight value corresponding to the second illumination intensity, wherein the third backlight value is an automatically adjusted backlight value corresponding to the second illumination intensity;
the adjusting module is used for adjusting the third backlight value based on the backlight adjusting factor to obtain a fourth backlight value which corresponds to the second illumination intensity and meets the user adjusting rule;
the determining module is specifically configured to determine, based on the first backlight value and the second backlight value, a backlight adjustment factor Adj ═ (user-AutoBri)/(MaxBri-MinBri); wherein user is the second backlight value, AutoBri is the first backlight value, MaxBri is the maximum backlight value, MinBri is the minimum backlight value;
the adjusting module is specifically configured to:
taking the backlight adjusting factor as an input parameter, and adjusting the third backlight value by using the following formula to obtain a fourth backlight value corresponding to the second illumination intensity and meeting the user adjustment rule;
gamma＝3.0^(-Adj)
Value＝AutoBri/255
AdjAutoBri＝Math.round((Value^gamma)*255)
gamma is an intermediate coefficient of suppression compensation of the backlight Value, Value is a normalized Value of the third backlight Value, AdjAutoBri is the fourth backlight Value, and math.
5. The apparatus of claim 4, wherein the determination module is specifically configured to:
dividing a range of backlight value adjustment into a first region and a second region based on the AutoBri, wherein the range of the first region is [ MinBri, AutoBri ], and the range of the second region is [ AutoBri, MaxBri ];
detecting the area where the second backlight value is located, and if the area where the second backlight value is located is detected to be the first area, determining that the backlight adjusting factor is a negative value; otherwise, determining the backlight adjusting factor as a positive value.
6. The apparatus of claim 5, wherein the backlight adjustment factor has a value in a range of [ -1,1 ].
7. An electronic device, comprising:
a memory for storing instructions for execution by the processor;
a processor for executing instructions stored in the memory to perform the method of any one of claims 1-3.
8. A computer-readable storage medium having stored thereon computer instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-3.
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| CN201810934146.1A CN110838279B (en) | 2018-08-16 | 2018-08-16 | Backlight adjusting method and device |
| PCT/CN2019/099431 WO2020034876A1 (en) | 2018-08-16 | 2019-08-06 | Backlight adjustment method and device |
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| CN201810934146.1A CN110838279B (en) | 2018-08-16 | 2018-08-16 | Backlight adjusting method and device |
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| WO2020034876A1 (en) | 2020-02-20 |
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