CN104658487B - Adjust method, device and the mobile terminal of brightness of image - Google Patents
Adjust method, device and the mobile terminal of brightness of image Download PDFInfo
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- CN104658487B CN104658487B CN201510115191.0A CN201510115191A CN104658487B CN 104658487 B CN104658487 B CN 104658487B CN 201510115191 A CN201510115191 A CN 201510115191A CN 104658487 B CN104658487 B CN 104658487B
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- 238000000034 method Methods 0.000 title claims abstract description 30
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- 238000004891 communication Methods 0.000 abstract description 3
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Abstract
The present invention is applied to communication technical field, there is provided a kind of method of regulation brightness of image, device and mobile terminal, methods described include：Whether the image that judgement is currently viewing is high-contrast image；If described image is high-contrast image, the backlight value of current liquid crystal display LCD is improved.The present invention, when the image being currently viewing is high-contrast image, improve the backlight value of current LCD, preferable image display effect can be provided the user, without user, the backlight value of LCD is set manually in order to see image detail clearly, overcome when the backlight illumination of screen is relatively low, the details of the higher image of the contrast checked almost is not reflected completely, can have a strong impact on the problem of the display effect of the image.
Description
Technical field
The invention belongs to communication technical field, more particularly to a kind of method for adjusting brightness of image, device and mobile terminal.
Background technology
With developing rapidly for mobile Internet, mobile terminal also in the development of diversification, as the master of mobile Internet
Carrier-mobile terminal being wanted, more and more important role being play in our lives, we can be by mobile terminal
Net, photos and sending messages, make a phone call, take pictures, recording a video etc., mobile terminal gradually replaces the effect of computer in some aspects.
However, in process of the present invention is realized, it is as follows that inventor has found that the mobile terminal that prior art is provided at least is present
Problem：
During the use of mobile terminal, the setting of backlight illumination often has two kinds of approach：One kind is that basis works as front ring
The illumination intensity value of border light automatically adjusts the backlight illumination of liquid crystal display (Liquid Crystal Display, LCD), another
Plant and be set to fixed backlight illumination.
Therefore, when user checks image, backlight illumination is all often fixed.But, low-light level backlight with
During high brightness backlights, the display effect of some images makes a big difference, the higher backlight photo of such as some contrasts,
When the backlight illumination of screen is relatively low, the details of these backlight photos is almost not reflected completely, has had a strong impact on this
The display effect of a little backlight photos.
The content of the invention
In view of this, the embodiment of the present invention provides a kind of method for adjusting brightness of image, device and mobile terminal, to solve
The mobile terminal that prior art is provided, when the backlight illumination of screen is relatively low, the higher image of the contrast checked
Details be almost not reflected completely, the problem of the display effect of the image can be had a strong impact on.
A kind of first aspect, there is provided method of regulation brightness of image, including：
Whether the image that judgement is currently viewing is high-contrast image；
If described image is high-contrast image, the backlight value of current liquid crystal display LCD is improved.
With reference in a first aspect, in the first possible implementation of first aspect, the judgement is currently viewing
Image whether be high-contrast image, including：
By the image division being currently viewing into preset number block of pixels；
Obtain the brightness value of each block of pixels；
Whether the image being currently viewing according to the brightness value of each block of pixels judges is high-contrast figure
Picture.
With reference to the first possible implementation of first aspect, in second possible implementation of first aspect
In, whether the image being currently viewing described in the brightness value judgement of each block of pixels described in the basis is high-contrast figure
Picture, including：
Quantity of the statistics brightness value more than the block of pixels of the first predetermined luminance value；
Quantity of the statistics brightness value less than the block of pixels of the second predetermined luminance value；
If brightness value is more than the first present count value more than the quantity of the block of pixels of the first predetermined luminance value, and brightness value is little
It is more than the second present count value in the quantity of the block of pixels of the second predetermined luminance value, then the image being currently viewing is high
Contrast image.
With reference to first aspect or the first the possible implementation with reference to first aspect or with reference to first aspect
Second possible implementation, in the third possible implementation of first aspect, the raising current liquid crystal shows
The backlight value of device LCD, including：
The first average brightness value is obtained, first average brightness value is the average bright of the image being currently viewing
Angle value；
The second average brightness value is obtained, second average brightness value is the average of a preassigned soft image
Brightness value；
According to first average brightness value, first average brightness value and second average brightness value difference with
And the curve of pre-rendered brightness value and LCD backlight grade determines the backlight level of current LCD；
The backlight value of current LCD is adjusted to into backlight value corresponding with the backlight level.
A kind of second aspect, there is provided device of regulation brightness of image, including：
Judging unit, for judging whether the image being currently viewing is high-contrast image；
Adjustment unit, if the image for being currently viewing described in judging unit judgement is high-contrast figure
Picture, then improve the backlight value of current liquid crystal display LCD.
With reference to second aspect, in the first possible implementation of second aspect, the judging unit, including：
Division module, for by the image division being currently viewing into preset number block of pixels；
Acquisition module, divides the brightness value of each block of pixels for obtaining for obtaining the division module；
Judge module, the brightness value of each block of pixels for being got according to the acquisition module judge it is described it is current just
Whether it is high-contrast image in the image checked.
With reference to the first possible implementation of second aspect, in second possible implementation of second aspect
In, the judge module, including：
First statistic submodule, for counting quantity of the brightness value more than the block of pixels of the first predetermined luminance value；
Second statistic submodule, for counting quantity of the brightness value less than the block of pixels of the second predetermined luminance value；
Judging submodule, if counting the brightness value for obtaining more than the first predetermined luminance value for first statistic submodule
The quantity of block of pixels be more than the first present count value, and second statistic submodule brightness value that obtains of statistics is less than second
The quantity of the block of pixels of predetermined luminance value is more than the second present count value, then the image being currently viewing is high-contrast
Image.
With reference to second aspect or the first the possible implementation with reference to second aspect or with reference to second aspect
Second possible implementation, in the third possible implementation of second aspect, the adjustment unit, including：
First mean flow rate acquisition module, for obtaining the first average brightness value, first average brightness value is described
The average brightness value of the image being currently viewing；
Second mean flow rate acquisition module, for obtaining the second average brightness value, second average brightness value is one pre-
The average brightness value of the soft image first specified；
Backlight level determining module, for the first mean flow rate got according to the first mean flow rate acquisition module
The difference of the second average brightness value that value, first average brightness value are got with the second mean flow rate acquisition module with
And the curve of pre-rendered brightness value and LCD backlight grade determines the backlight level of current LCD；
Backlight value adjustment module, is determined with the backlight level determining module for the backlight value of current LCD is adjusted to
The corresponding backlight value of backlight level.
A kind of third aspect, there is provided mobile terminal, the mobile terminal include that the regulation image as described in second aspect is bright
The device of degree.
With reference to the third aspect, the mobile terminal is smart mobile phone or panel computer.
In the embodiment of the present invention, when the image being currently viewing is high-contrast image, the backlight of current LCD is improved
Value, can provide the user preferable image display effect, manually arrange LCD to see image detail clearly without user
Backlight value, overcomes when the backlight illumination of screen is relatively low, and the details of the higher image of the contrast checked is almost
It is not reflected completely, the problem of the display effect of the image can be had a strong impact on.
Description of the drawings
Fig. 1 is the flowchart of the embodiment of the method that the present invention adjusts brightness of image；
Fig. 2 be the present invention adjust in the embodiment of the method for brightness of image according to the brightness value of each block of pixels judge it is current just
It is whether that high-contrast image implements flow chart in the image checked；
Fig. 3 is the backlight value of raising current liquid crystal display LCD in the embodiment of the method for adjusting brightness of image of the invention
Implement flow chart；
Fig. 4 is the structured flowchart of the device embodiment that the present invention adjusts brightness of image；
Fig. 5 is the structured flowchart of mobile terminal embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
In embodiments of the present invention, judge whether the image being currently viewing is high-contrast image；If the figure
Seem high-contrast image, then improve the backlight value of current liquid crystal display LCD, to improve the image being currently viewing
Display effect.
It is described in detail below in conjunction with realization of the specific embodiment to the present invention：
Embodiment one
Fig. 1 shows that the method for the regulation brightness of image that the embodiment of the present invention one is provided realizes flow process, and details are as follows：
In step S101, judge whether the image being currently viewing is high-contrast image, if described image is
High-contrast image, then execution step S102；Otherwise, execution step S103.
In embodiments of the present invention, the image division being currently viewing first is obtained into after the block of pixels of preset number
Further according to the brightness value of each block of pixels, the brightness value of each block of pixels, judges whether described image is high-contrast figure
Picture.Wherein, there is the especially strong region of obvious contrast in high-contrast image in referring to present image.
Specifically, judge whether the image being currently viewing is high-contrast image according to the brightness value of each block of pixels
Realize flow process as shown in Fig. 2 comprising the following steps：
The quantity of step 1, statistics brightness value more than the block of pixels of the first predetermined luminance value；
The quantity of step 2, statistics brightness value less than the block of pixels of the second predetermined luminance value；
If step 3, brightness value are more than the first present count value more than the quantity of the block of pixels of the first predetermined luminance value, and bright
Angle value is more than the second present count value less than the quantity of the block of pixels of the second predetermined luminance value, then the figure being currently viewing
It seem high-contrast image.
Specifically, then the image division being currently viewing is obtained into each pixel into the block of pixels of 16*16, i.e., 256
The brightness value of block.
Wherein, each pixel in image be it is elementary composition by RGB, i.e. RGB three, and RGB each
The value of element is represented all by 0 to 255, when the value of three elements is all close to 0, then the now pixel
Black, when the value of three elements is all close to 255, then now pixel be it is white, it is different between RGB
Ratio superposition can obtain diversiform color.In color space description, mainly RGB and YUV, RGB are by three kinds
The principle of primary colours is describing, and YUV is then that (Y represents brightness, and maximum is also that 255), (UV represents two colors to aberration according to brightness
Difference) principle describing.In color space description, RGB and YUV can be mutual inversion of phases.Therefore, it can by YUV or
RGB two ways gets the brightness value of each block of pixels.
Specifically, after the brightness value of each block of pixels for getting the image being currently viewing, it is each that judgement gets
Individual brightness value whether more than the first predetermined luminance value, when brightness value more than the first predetermined luminance value (it is habitual, this first is preset
Brightness value is set as 180, there is very bright region, i.e. clear zone in representing image), and, brightness value is more than the first predetermined luminance
The quantity of the block of pixels of value is more than the first present count value (256 block of pixels altogether in such as image frame, then this is first pre-
If quantitative value orientates 50 as, wherein the first present count value is empirically determined, probably account for block of pixels sum 1/5),
(such as the second predetermined luminance value is set as 50, exists very in representing image less than the second predetermined luminance value to there is brightness value simultaneously
Dark region, i.e. dark space), and brightness value is less than the quantity of the block of pixels of the second predetermined luminance value more than the second present count value
(such as, 256 block of pixels altogether in image frame, then the second present count value orientates 100 as, wherein this second preset
Quantitative value is empirically determined, probably account for block of pixels sum 1/3), meet above-mentioned two condition, illustrate currently to look into
There is the especially strong region of obvious contrast in the image frame seen, then think the higher (ratio of contrast of present image
Such as, shoot in the environment of backlight)；If being unsatisfactory for above-mentioned two condition, then there is no spy in illustrating present image
, than stronger region, contrast is not than relatively low (shooting) in the environment of backlight for not significantly contrast.
After it is determined that the image being currently viewing is high-contrast image, current liquid can be improved with execution step S102
The backlight value of crystal display LCD；Otherwise, the backlight value of current liquid crystal display LCD can not be adjusted with execution step S103.
In step s 102, if described image is high-contrast image, improve the backlight of current liquid crystal display LCD
Value.
In embodiments of the present invention, if the image being currently viewing is high-contrast image, as shown in figure 3, logical
Cross the backlight value that following steps improve current liquid crystal display LCD：
Step 11, the first average brightness value is obtained, first average brightness value is the flat of the image that is currently viewing
Equal brightness value.
Specifically, it is after the brightness value of each block of pixels of the image being currently viewing being got in step S101, right
The brightness value is averaging, and obtains first average brightness value.
Step 12, the second average brightness value of acquisition, second average brightness value is a preassigned low contrast figure
The average brightness value of picture.
Specifically, by the method described in step S101, get a preassigned soft image each
After the brightness value of block of pixels, the brightness value is averaging, obtains second average brightness value.
Wherein, the preassigned soft image can be the image being currently viewing that prestores
Shoot under the environment such as non-backlight the soft image that obtains, or it is incoherent with the image being currently viewing other
Image, this image are that the soft image for obtaining is shot under the environment such as non-backlight.
Step 13, according to first average brightness value, first average brightness value and second average brightness value
Difference and the curve of pre-rendered brightness value and LCD backlight grade determine the backlight level of current LCD.
Specifically, the regulation of backlight value can be carried out on the basis of the average brightness value of soft image.Such as, contrast
It is 120 after degree is average than the brightness value of each block of pixels of relatively low soft image, then be accomplished by comparing contrast
The average brightness value of high high-contrast image also brings up to 120, if getting the mean flow rate of high-contrast image before
It is worth for 80, then, need for the average brightness value of high-contrast image to increase by 40.
Specifically, the change of brightness value is synchronous with the change of LCD backlight value, and backlight value is bigger, and brightness value will be more
Height, the brightness value for being lifted as needed need increased LCD backlight grade to arrange.Wherein, brightness value and LCD backlight grade
Curve can be drawn by pure white picture.Pure white picture is used, under different LCD backlight grades, can be obtained not
Same brightness value, so, just forms the curve of a brightness value and LCD backlight grade.That is brightness value and LCD backlight
Value is one-to-one.
Step 14, the backlight value of current LCD is adjusted to into backlight value corresponding with the backlight level.
Specifically, the backlight level of LCD can be increased to corresponding backlight level after increase brightness value.Wherein, backlight etc.
Level is corresponded with backlight value, backlight level one backlight value of correspondence.Herein, it is not necessary that carry out backlight level progressively
Lifted, can so cause the brightness flop of image, Consumer's Experience is bad.Certainly, the backlight level of LCD has maximum, when exceeding
Maximum is just no longer adjusted.
In step s 103, the backlight value of current liquid crystal display LCD is not adjusted.
The present embodiment, when the image being currently viewing is high-contrast image, improves the backlight value of current LCD, can
To provide the user preferable image display effect, the backlight of LCD is set manually in order to see image detail clearly without user
Value, overcomes when the backlight illumination of screen is relatively low, and the details of the higher image of the contrast checked is almost complete
It is not reflected, the problem of the display effect of the image can be had a strong impact on.
It should be understood that in embodiments of the present invention, the size of the sequence number of above-mentioned each process is not meant to the elder generation of execution sequence
Afterwards, the execution sequence of each process should be determined with its function and internal logic, and should not be to the implementation process structure of the embodiment of the present invention
Into any restriction.
One of ordinary skill in the art will appreciate that all or part of step in realizing the various embodiments described above method is can
Instruct related hardware to complete with by program, corresponding program can be stored in a computer read/write memory medium
In, described storage medium, such as ROM/RAM, disk or CD etc..
Embodiment two
Fig. 4 shows the concrete structure block diagram of the device of the regulation brightness of image that the embodiment of the present invention two is provided, in order to just
In explanation, the part related to the embodiment of the present invention is illustrate only.The device 4 of the regulation brightness of image can be built in movement
The unit of software unit, hardware cell or software and hardware combining in terminal, the device 4 of the regulation brightness of image include：Judge
Unit 41 and adjustment unit 42.
Wherein, judging unit 41, for judging whether the image being currently viewing is high-contrast image；
Adjustment unit 42, if the image for being currently viewing described in judging unit judgement is high-contrast figure
Picture, then improve the backlight value of current liquid crystal display LCD.
Specifically, the judging unit 41, including：
Division module, for by the image division being currently viewing into preset number block of pixels；
Acquisition module, divides the brightness value of each block of pixels for obtaining for obtaining the division module；
Judge module, the brightness value of each block of pixels for being got according to the acquisition module judge it is described it is current just
Whether it is high-contrast image in the image checked.
Specifically, the judge module, including：
First statistic submodule, for counting quantity of the brightness value more than the block of pixels of the first predetermined luminance value；
Second statistic submodule, for counting quantity of the brightness value less than the block of pixels of the second predetermined luminance value；
Judging submodule, if counting the brightness value for obtaining more than the first predetermined luminance value for first statistic submodule
The quantity of block of pixels be more than the first present count value, and second statistic submodule brightness value that obtains of statistics is less than second
The quantity of the block of pixels of predetermined luminance value is more than the second present count value, then the image being currently viewing is high-contrast
Image.
Specifically, the adjustment unit 42, including：
First mean flow rate acquisition module, for obtaining the first average brightness value, first average brightness value is described
The average brightness value of the image being currently viewing；
Second mean flow rate acquisition module, for obtaining the second average brightness value, second average brightness value is one pre-
The average brightness value of the soft image first specified；
Backlight level determining module, for the first mean flow rate got according to the first mean flow rate acquisition module
The difference of the second average brightness value that value, first average brightness value are got with the second mean flow rate acquisition module with
And the curve of pre-rendered brightness value and LCD backlight grade determines the backlight level of current LCD；
Backlight value adjustment module, is determined with the backlight level determining module for the backlight value of current LCD is adjusted to
The corresponding backlight value of backlight level.
The device for adjusting brightness of image provided in an embodiment of the present invention can be applied in aforementioned corresponding embodiment of the method one
In, details will not be described here referring to the description of above-described embodiment one.
Embodiment three
Fig. 5 shows the concrete structure block diagram of the mobile terminal that the embodiment of the present invention three is provided, and for convenience of description, only shows
The part related to the embodiment of the present invention is gone out.The mobile terminal 5 can be smart mobile phone or panel computer, including embodiment two
Described in regulation brightness of image device 4, the device 4 of the regulation brightness of image includes：Judging unit 41 and adjustment unit 42.
Wherein, judging unit 41, for judging whether the image being currently viewing is high-contrast image；
Adjustment unit 42, if the image for being currently viewing described in judging unit judgement is high-contrast figure
Picture, then improve the backlight value of current liquid crystal display LCD.
Specifically, the judging unit 41, including：
Division module, for by the image division being currently viewing into preset number block of pixels；
Acquisition module, divides the brightness value of each block of pixels for obtaining for obtaining the division module；
Judge module, the brightness value of each block of pixels for being got according to the acquisition module judge it is described it is current just
Whether it is high-contrast image in the image checked.
Specifically, the judge module, including：
First statistic submodule, for counting quantity of the brightness value more than the block of pixels of the first predetermined luminance value；
Second statistic submodule, for counting quantity of the brightness value less than the block of pixels of the second predetermined luminance value；
Judging submodule, if counting the brightness value for obtaining more than the first predetermined luminance value for first statistic submodule
The quantity of block of pixels be more than the first present count value, and second statistic submodule brightness value that obtains of statistics is less than second
The quantity of the block of pixels of predetermined luminance value is more than the second present count value, then the image being currently viewing is high-contrast
Image.
Specifically, the adjustment unit 42, including：
First mean flow rate acquisition module, for obtaining the first average brightness value, first average brightness value is described
The average brightness value of the image being currently viewing；
Second mean flow rate acquisition module, for obtaining the second average brightness value, second average brightness value is one pre-
The average brightness value of the soft image first specified；
Backlight level determining module, for the first mean flow rate got according to the first mean flow rate acquisition module
The difference of the second average brightness value that value, first average brightness value are got with the second mean flow rate acquisition module with
And the curve of pre-rendered brightness value and LCD backlight grade determines the backlight level of current LCD；
Backlight value adjustment module, is determined with the backlight level determining module for the backlight value of current LCD is adjusted to
The corresponding backlight value of backlight level.
Mobile terminal provided in an embodiment of the present invention can be applied in aforementioned corresponding embodiment of the method one, details referring to
The description of above-described embodiment one, will not be described here.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Unit and algorithm steps, being capable of being implemented in combination in electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel
Each specific application can be used different methods to realize described function, but this realization it is not considered that exceeding
The scope of the present invention.
Those skilled in the art can be understood that, for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be described here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method, can be with
Realize by another way.For example, device embodiment described above is only schematic, for example, the unit
Divide, only a kind of division of logic function can have other dividing mode, such as multiple units or component when actually realizing
Can with reference to or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or
The coupling each other for discussing or direct-coupling or communication connection can be the indirect couplings by some interfaces, device or unit
Close or communicate to connect, can be electrical, mechanical or other forms.
The unit as separating component explanation can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can local to be located at one, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.
If the function is realized using in the form of SFU software functional unit and as independent production marketing or when using, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, is used including some instructions so that a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each embodiment methods described of the invention.
And aforesaid storage medium includes：USB flash disk, portable hard drive, read only memory (ROM, Read-Only Memory), random access memory are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (8)
1. it is a kind of adjust brightness of image method, it is characterised in that include：
Whether the image that judgement is currently viewing is high-contrast image；
If described image is high-contrast image, the backlight value of current liquid crystal display LCD is improved；
The backlight value of the raising current liquid crystal display LCD, including：
The first average brightness value is obtained, first average brightness value is the mean flow rate of the image being currently viewing
Value；
The second average brightness value is obtained, second average brightness value is the mean flow rate of a preassigned soft image
Value；
According to first average brightness value, the difference of first average brightness value and second average brightness value and pre-
The brightness value first drawn and the curve of LCD backlight grade determine the backlight level of current LCD；
The backlight value of current LCD is adjusted to into backlight value corresponding with the backlight level.
2. the method for claim 1, it is characterised in that whether the image that the judgement is currently viewing is high contrast
Degree image, including：
By the image division being currently viewing into preset number block of pixels；
Obtain the brightness value of each block of pixels；
Whether the image being currently viewing according to the brightness value of each block of pixels judges is high-contrast image.
3. method as claimed in claim 2, it is characterised in that the brightness value of each block of pixels described in the basis judges described
Whether the image being currently viewing is high-contrast image, including：
Quantity of the statistics brightness value more than the block of pixels of the first predetermined luminance value；
Quantity of the statistics brightness value less than the block of pixels of the second predetermined luminance value；
If brightness value is more than the first present count value, and brightness value less than the more than the quantity of the block of pixels of the first predetermined luminance value
The quantity of the block of pixels of two predetermined luminance values is more than the second present count value, then the image being currently viewing is high contrast
Degree image.
4. it is a kind of adjust brightness of image device, it is characterised in that include：
Judging unit, for judging whether the image being currently viewing is high-contrast image；
Adjustment unit, if the image for being currently viewing described in judging unit judgement is high-contrast image,
Improve the backlight value of current liquid crystal display LCD；
The adjustment unit, including：
First mean flow rate acquisition module, for obtaining the first average brightness value, first average brightness value is described current
The average brightness value of the image checked；
Second mean flow rate acquisition module, for obtaining the second average brightness value, second average brightness value is one to refer in advance
The average brightness value of fixed soft image；
Backlight level determining module, for got according to the first mean flow rate acquisition module the first average brightness value,
The difference of the second average brightness value that first average brightness value is got with the second mean flow rate acquisition module and
The curve of pre-rendered brightness value and LCD backlight grade determines the backlight level of current LCD；
Backlight value adjustment module, for the backlight value of current LCD is adjusted to the back of the body determined with the backlight level determining module
The corresponding backlight value of light grade.
5. device as claimed in claim 4, it is characterised in that the judging unit, including：
Division module, for by the image division being currently viewing into preset number block of pixels；
Acquisition module, divides the brightness value of each block of pixels for obtaining for obtaining the division module；
Judge module, the brightness value of each block of pixels for being got according to the acquisition module judge described currently looking into
Whether the image seen is high-contrast image.
6. device as claimed in claim 5, it is characterised in that the judge module, including：
First statistic submodule, for counting quantity of the brightness value more than the block of pixels of the first predetermined luminance value；
Second statistic submodule, for counting quantity of the brightness value less than the block of pixels of the second predetermined luminance value；
Judging submodule, if counting picture of the brightness value for obtaining more than the first predetermined luminance value for first statistic submodule
The quantity of plain block is more than the first present count value, and the brightness value that second statistic submodule statistics is obtained is default less than second
The quantity of the block of pixels of brightness value is more than the second present count value, then the image being currently viewing is high-contrast figure
Picture.
7. a kind of mobile terminal, it is characterised in that the mobile terminal includes the regulation as described in any one of claim 4 to 6
The device of brightness of image.
8. mobile terminal as claimed in claim 7, it is characterised in that the mobile terminal is smart mobile phone or panel computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN105513546B (en) | 2016-03-02 | 2018-09-11 | 京东方科技集团股份有限公司 | backlight adjusting method and device, display device |
| CN106061054B (en) * | 2016-05-27 | 2018-12-14 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment |
| CN106200937A (en) * | 2016-06-28 | 2016-12-07 | 广东欧珀移动通信有限公司 | Sight protectio method, device and the mobile terminal of mobile terminal |
| CN107153500B (en) * | 2017-04-21 | 2020-05-15 | 刘一琛 | Method and equipment for realizing image display |
| TW201913638A (en) * | 2017-08-24 | 2019-04-01 | 微星科技股份有限公司 | Display control system and method |
| CN107610187B (en) * | 2017-09-19 | 2021-01-26 | 海信视像科技股份有限公司 | Control method and device for image acquisition of medical endoscopic device and endoscopic system |
| WO2020042110A1 (en) * | 2018-08-30 | 2020-03-05 | 深圳市大疆创新科技有限公司 | Screen luminance adjustment method, photographing device and system |
| CN116110351B (en) * | 2023-04-13 | 2023-09-19 | 荣耀终端有限公司 | Backlight control method, device, chip, electronic equipment and medium |
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| CN101324722B (en) * | 2007-06-13 | 2010-11-03 | 深圳Tcl新技术有限公司 | Method for adjusting liquid crystal display device backlight lightness and contrast |
| JP4987887B2 (en) * | 2009-01-16 | 2012-07-25 | 株式会社東芝 | Image display device |
| CN102903340B (en) * | 2012-11-12 | 2015-11-04 | 中航华东光电有限公司 | Liquid crystal display is based on the LED dynamic backlight control method of dynamic threshold |
| CN103313002B (en) * | 2013-07-05 | 2017-02-22 | 中邮科通信技术股份有限公司 | Situation-based mobile streaming media energy-saving optimization method |
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