CN104658487A - Method and device for adjusting image brightness and mobile terminal - Google Patents
Method and device for adjusting image brightness and mobile terminal Download PDFInfo
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Abstract
The invention is applicable to the technical field of communication, and provides a method and a device for adjusting image brightness and a mobile terminal. The method comprises the following steps: judging whether a currently-viewed image is a high-contrast image; and if the image is a high-contrast image, increasing the backlight value of a current liquid crystal display LCD. According to the invention, when a currently-viewed image is a high-contrast image, the backlight value of a current LCD is improved, so that a better image display effect can be provided for a user, and the user is not required to manually set the backlight value of the LCD for clearly seeing the details of the image, thereby solving the problem that when the backlight brightness of a screen is low, the display effect of the image is seriously affected because the details of a currently-viewed high-contrast image are barely embodied.
Description
Technical field
The invention belongs to communication technical field, particularly relate to a kind of method, device and the mobile terminal that regulate brightness of image.
Background technology
Along with the develop rapidly of mobile Internet, mobile terminal is also in the development of diversification, as the main carriers-mobile terminal of mobile Internet, in our life, play more and more important role, we can by mobile terminal Internet access, photos and sending messages, make a phone call, take pictures, record a video etc., mobile terminal replaces the effect of computer in some aspects gradually.
But realizing in process of the present invention, inventor finds mobile terminal that prior art provides, and at least there are the following problems:
In the use procedure of mobile terminal, the setting of backlight illumination often has two kinds of approach: a kind of is according to the automatic adjustable liquid crystal display display of the illumination intensity value of current environment light (Liquid Crystal Display, LCD) backlight illumination, another kind is the backlight illumination being set as fixing.
Therefore, when user checks image, backlight illumination is all often fixing.But, when low-light level backlight and high brightness backlights, the display effect of some image makes a big difference, the backlight photo that such as some contrasts are higher, when the backlight illumination of screen is lower time, the details of these backlight photos is almost not reflected completely, has had a strong impact on the display effect of these backlight photos.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of method, device and the mobile terminal that regulate brightness of image, to solve the mobile terminal that prior art provides, when the backlight illumination of screen is lower time, the details of the image that the contrast of checking is higher is almost not reflected completely, can have a strong impact on the problem of the display effect of this image.
First aspect, provides a kind of method regulating brightness of image, comprising:
Judge whether the current image checked is high-contrast image;
If described image is high-contrast image, then improve the backlight value of current liquid crystal display LCD.
In conjunction with first aspect, in the first possible implementation of first aspect, describedly judge whether the current image checked is high-contrast image, comprising:
The described current image checked is divided into the block of pixels of preset number;
Obtain the brightness value of each block of pixels;
Judge whether the described current image checked is high-contrast image according to the brightness value of each block of pixels described.
In conjunction with the first possible implementation of first aspect, in the implementation that the second of first aspect is possible, the brightness value of each block of pixels described in described basis judges whether the described current image checked is high-contrast image, comprising:
Statistics brightness value is more than the quantity of the block of pixels of the first predetermined luminance value;
Statistics brightness value is less than the quantity of the block of pixels of the second predetermined luminance value;
If brightness value is greater than the first present count value more than the quantity of the block of pixels of the first predetermined luminance value, and the quantity that brightness value is less than the block of pixels of the second predetermined luminance value is greater than the second present count value, then the described current image checked is high-contrast image.
In conjunction with first aspect or in conjunction with the first possible implementation of first aspect or in conjunction with the possible implementation of the second of first aspect, in the third possible implementation of first aspect, the backlight value of described raising current liquid crystal display LCD, comprising:
Obtain the first average brightness value, described first average brightness value is the average brightness value of the described current image checked;
Obtain the second average brightness value, described second average brightness value is the average brightness value of a preassigned soft image;
According to the backlight level of the difference of described first average brightness value, described first average brightness value and described second average brightness value and the curve determination current LCD of pre-rendered brightness value and LCD backlight level;
The backlight value of current LCD is adjusted to the backlight value corresponding with described backlight level.
Second aspect, provides a kind of device regulating brightness of image, comprising:
Judging unit, for judging whether the current image checked is high-contrast image;
Regulon, if judge that the described current image checked is high-contrast image for described judging unit, then improves the backlight value of current liquid crystal display LCD.
In conjunction with second aspect, in the first possible implementation of second aspect, described judging unit, comprising:
Divide module, for the described current image checked being divided into the block of pixels of preset number;
Acquisition module, for obtaining the brightness value of each block of pixels that described division Module Division obtains;
Judge module, the brightness value for each block of pixels got according to described acquisition module judges whether the described current image checked is high-contrast image.
In conjunction with the first possible implementation of second aspect, in the implementation that the second of second aspect is possible, described judge module, comprising:
First statistics submodule, for adding up the quantity of brightness value more than the block of pixels of the first predetermined luminance value;
Second statistics submodule, is less than the quantity of the block of pixels of the second predetermined luminance value for adding up brightness value;
Judge submodule, if add up for described first statistics submodule the brightness value obtained to be greater than the first present count value more than the quantity of the block of pixels of the first predetermined luminance value, and described second statistics submodule is added up the quantity that the brightness value obtained is less than the block of pixels of the second predetermined luminance value and is greater than the second present count value, then the described current image checked is high-contrast image.
In conjunction with second aspect or in conjunction with second aspect the first possible implementation or in conjunction with the possible implementation of the second of second aspect, in the third possible implementation of second aspect, described regulon, comprising:
First mean flow rate acquisition module, for obtaining the first average brightness value, described first average brightness value is the average brightness value of the described current image checked;
Second mean flow rate acquisition module, for obtaining the second average brightness value, described second average brightness value is the average brightness value of a preassigned soft image;
Backlight level determination module, the difference of the second average brightness value got for the first average brightness value got according to described first mean flow rate acquisition module, described first average brightness value and described second mean flow rate acquisition module and the backlight level of the curve determination current LCD of pre-rendered brightness value and LCD backlight level;
Backlight value adjustment module, for being adjusted to the backlight value corresponding with the backlight level that described backlight level determination module is determined by the backlight value of current LCD.
The third aspect, provides a kind of mobile terminal, and described mobile terminal comprises the device of the adjustment brightness of image as described in second aspect.
In conjunction with the third aspect, described mobile terminal is smart mobile phone or panel computer.
In the embodiment of the present invention, when the current image checked is high-contrast image, improve the backlight value of current LCD, better image display effect can be provided for user, and do not need user that the backlight value of LCD is manually set to see image detail clearly, overcome when the backlight illumination of screen is lower, the details of the image that the contrast of checking is higher is almost not reflected completely, can have a strong impact on the problem of the display effect of this image.
Accompanying drawing explanation
Fig. 1 is the realization flow figure that the present invention regulates the embodiment of the method for brightness of image;
Fig. 2 is that the present invention regulates in the embodiment of the method for brightness of image and judges that whether the current image checked is the specific implementation process flow diagram of high-contrast image according to the brightness value of each block of pixels;
Fig. 3 is the specific implementation process flow diagram that the present invention regulates the backlight value improving current liquid crystal display LCD in the embodiment of the method for brightness of image;
Fig. 4 is the structured flowchart that the present invention regulates the device embodiment of brightness of image;
Fig. 5 is the structured flowchart of mobile terminal embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In embodiments of the present invention, judge whether the current image checked is high-contrast image; If described image is high-contrast image, then improve the backlight value of current liquid crystal display LCD, to improve the display effect of the current image checked.
Below in conjunction with specific embodiment, realization of the present invention is described in detail:
Embodiment one
Fig. 1 shows the realization flow of the method for the adjustment brightness of image that the embodiment of the present invention one provides, and details are as follows:
In step S101, judge whether the current image checked is high-contrast image, if described image is high-contrast image, then perform step S102; Otherwise, perform step S103.
In embodiments of the present invention, after the current image checked is divided into the block of pixels of preset number, first obtain the brightness value of each block of pixels, then judge whether described image is high-contrast image according to the brightness value of each block of pixels described.Wherein, high-contrast image refers in present image to there is obvious contrast region strong especially.
Concrete, according to the brightness value of each block of pixels judge the current image checked be whether the realization flow of high-contrast image as shown in Figure 2, comprise the following steps:
Step 1, statistics brightness value are more than the quantity of the block of pixels of the first predetermined luminance value;
Step 2, statistics brightness value are less than the quantity of the block of pixels of the second predetermined luminance value;
If step 3 brightness value is greater than the first present count value more than the quantity of the block of pixels of the first predetermined luminance value, and the quantity that brightness value is less than the block of pixels of the second predetermined luminance value is greater than the second present count value, then the described current image checked is high-contrast image.
Concrete, the current image checked is divided into 16*16, and namely 256 block of pixels, then obtain the brightness value of each block of pixels.
Wherein, each pixel in image is by RGB, namely RGB three elements form, and the value of each element of RGB represents by 0 to 255, when three elements value all close to 0 time, so now this pixel is black, when three elements value all close to 255 time, so now pixel is white, and ratio superpositions different between RGB can obtain diversiform color.In color space describes, mainly RGB and YUV, RGB describe by the principle of three kinds of primary colours, and YUV is then that the principle of aberration (UV represents two aberration) describes according to brightness (Y represents brightness, and maximal value is also 255).During color space describes, RGB and YUV can transform mutually.Therefore, the brightness value of each block of pixels can be got by YUV or RGB two kinds of modes.
Concrete, after getting the brightness value of each block of pixels of the current image checked, judge that whether each brightness value got is more than the first predetermined luminance value, when brightness value is (habitual more than the first predetermined luminance value, this the first predetermined luminance value is set as 180, represent in image to there is very bright region, i.e. clear zone), and, brightness value more than the quantity of the block of pixels of the first predetermined luminance value more than the first present count value (256 block of pixels altogether in such as image frame, so this first present count value orientates 50 as, wherein this first present count value is rule of thumb determined, probably account for 1/5 of block of pixels sum), there is brightness value to be less than the second predetermined luminance value (such as the second predetermined luminance value is set as 50 simultaneously, represent in image to there is very 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, so this second present count value orientates 100 as, wherein this second present count value is rule of thumb determined, probably account for 1/3 of block of pixels sum), meet above-mentioned two conditions, illustrate in the current image frame checked to there is obvious contrast region strong especially, so think that the contrast of present image is higher (such as, take under the environment of backlight), if do not meet above-mentioned two conditions, so illustrate in present image there is not obvious especially contrast than stronger region, contrast lower (not being take under the environment of backlight).
After determining that the current image checked is high-contrast image, can step S102 be performed, improve the backlight value of current liquid crystal display LCD; Otherwise, can step S103 be performed, not adjust the backlight value of current liquid crystal display LCD.
In step s 102, if described image is high-contrast image, then improve the backlight value of current liquid crystal display LCD.
In embodiments of the present invention, the image checked if current is high-contrast image, then as shown in Figure 3, improved the backlight value of current liquid crystal display LCD by following steps:
Step 11, obtain the first average brightness value, described first average brightness value is the average brightness value of the current image checked.
Concrete, get the brightness value of each block of pixels of the current image checked in step S101 after, described brightness value is averaging, obtains described first average brightness value.
Step 12, obtain the second average brightness value, described second average brightness value is the average brightness value of a preassigned soft image.
Concrete, by the method described in step S101, after getting the brightness value of each block of pixels of a preassigned soft image, described brightness value is averaging, obtains described second average brightness value.
Wherein, described preassigned soft image can be the current image checked prestored under the environment such as non-backlight, take the soft image obtained, also can be other images incoherent with the current image checked, this image takes the soft image obtained under the environment such as non-backlight.
Step 13, backlight level according to the difference of described first average brightness value, described first average brightness value and described second average brightness value and the curve determination current LCD of pre-rendered brightness value and LCD backlight level.
Concrete, can with the average brightness value of soft image for benchmark carries out the adjustment of backlight value.Such as, 120 after the brightness value of each block of pixels of the soft image that contrast is lower is average, the average brightness value of high-contrast image higher for contrast is so just needed also to bring up to 120, if the average brightness value getting high-contrast image is 80 before, so, need the average brightness value of high-contrast image to increase by 40.
Concrete, the change of brightness value is synchronous with the change of LCD backlight value, and backlight value is larger, and brightness value will be higher, and the brightness value promoted as required arranges the LCD backlight level needing to increase.Wherein, the curve of brightness value and LCD backlight level can be drawn by pure white picture.Use pure white picture, under different LCD backlight level, different brightness values can be obtained, like this, just form the curve of a brightness value and LCD backlight level.That is brightness value and LCD backlight value are one to one.
Step 14, the backlight value of current LCD is adjusted to the backlight value corresponding with described backlight level.
Concrete, the backlight level that the backlight level of LCD is corresponding after increase brightness value can be increased.Wherein, backlight level and backlight value one_to_one corresponding, a corresponding backlight value of backlight level.Herein, there is no need the backlight level of carrying out progressively and promote, the brightness of image can be caused like this to change, and Consumer's Experience is bad.Certainly, the backlight level of LCD has maximal value, just no longer adjusts when exceeding maximal value.
In step s 103, the backlight value of current liquid crystal display LCD is not adjusted.
The present embodiment, when the current image checked is high-contrast image, improve the backlight value of current LCD, better image display effect can be provided for user, and do not need user that the backlight value of LCD is manually set to see image detail clearly, overcome when the backlight illumination of screen is lower, the details of the image that the contrast of checking is higher is almost not reflected completely, can have a strong impact on the problem of the display effect of this image.
Should be understood that in embodiments of the present invention, the size of the sequence number of above-mentioned each process does not also mean that the priority of execution sequence, and the execution sequence of each process should be determined with its function and internal logic, and should not form any restriction to the implementation process of the embodiment of the present invention.
One of ordinary skill in the art will appreciate that all or part of step realized in the various embodiments described above method is that the hardware that can carry out instruction relevant by program has come, corresponding program can be stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk or CD etc.
Embodiment two
Fig. 4 shows the concrete structure block diagram of the device of the adjustment brightness of image that the embodiment of the present invention two provides, and for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention.The device 4 of this adjustment brightness of image can be the unit of the software unit be built in mobile terminal, hardware cell or software and hardware combining, and the device 4 of this adjustment brightness of image comprises: judging unit 41 and regulon 42.
Wherein, judging unit 41, for judging whether the current image checked is high-contrast image;
Regulon 42, if judge that the described current image checked is high-contrast image for described judging unit, then improves the backlight value of current liquid crystal display LCD.
Concrete, described judging unit 41, comprising:
Divide module, for the described current image checked being divided into the block of pixels of preset number;
Acquisition module, for obtaining the brightness value of each block of pixels that described division Module Division obtains;
Judge module, the brightness value for each block of pixels got according to described acquisition module judges whether the described current image checked is high-contrast image.
Concrete, described judge module, comprising:
First statistics submodule, for adding up the quantity of brightness value more than the block of pixels of the first predetermined luminance value;
Second statistics submodule, is less than the quantity of the block of pixels of the second predetermined luminance value for adding up brightness value;
Judge submodule, if add up for described first statistics submodule the brightness value obtained to be greater than the first present count value more than the quantity of the block of pixels of the first predetermined luminance value, and described second statistics submodule is added up the quantity that the brightness value obtained is less than the block of pixels of the second predetermined luminance value and is greater than the second present count value, then the described current image checked is high-contrast image.
Concrete, described regulon 42, comprising:
First mean flow rate acquisition module, for obtaining the first average brightness value, described first average brightness value is the average brightness value of the described current image checked;
Second mean flow rate acquisition module, for obtaining the second average brightness value, described second average brightness value is the average brightness value of a preassigned soft image;
Backlight level determination module, the difference of the second average brightness value got for the first average brightness value got according to described first mean flow rate acquisition module, described first average brightness value and described second mean flow rate acquisition module and the backlight level of the curve determination current LCD of pre-rendered brightness value and LCD backlight level;
Backlight value adjustment module, for being adjusted to the backlight value corresponding with the backlight level that described backlight level determination module is determined by the backlight value of current LCD.
The device of the adjustment brightness of image that the embodiment of the present invention provides can be applied in the embodiment of the method one of aforementioned correspondence, and details, see the description of above-described embodiment one, do not repeat them here.
Embodiment three
Fig. 5 shows the concrete structure block diagram of the mobile terminal that the embodiment of the present invention three provides, and for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention.This mobile terminal 5 can be smart mobile phone or panel computer, comprises the device 4 of the adjustment brightness of image described in embodiment two, and the device 4 of this adjustment brightness of image comprises: judging unit 41 and regulon 42.
Wherein, judging unit 41, for judging whether the current image checked is high-contrast image;
Regulon 42, if judge that the described current image checked is high-contrast image for described judging unit, then improves the backlight value of current liquid crystal display LCD.
Concrete, described judging unit 41, comprising:
Divide module, for the described current image checked being divided into the block of pixels of preset number;
Acquisition module, for obtaining the brightness value of each block of pixels that described division Module Division obtains;
Judge module, the brightness value for each block of pixels got according to described acquisition module judges whether the described current image checked is high-contrast image.
Concrete, described judge module, comprising:
First statistics submodule, for adding up the quantity of brightness value more than the block of pixels of the first predetermined luminance value;
Second statistics submodule, is less than the quantity of the block of pixels of the second predetermined luminance value for adding up brightness value;
Judge submodule, if add up for described first statistics submodule the brightness value obtained to be greater than the first present count value more than the quantity of the block of pixels of the first predetermined luminance value, and described second statistics submodule is added up the quantity that the brightness value obtained is less than the block of pixels of the second predetermined luminance value and is greater than the second present count value, then the described current image checked is high-contrast image.
Concrete, described regulon 42, comprising:
First mean flow rate acquisition module, for obtaining the first average brightness value, described first average brightness value is the average brightness value of the described current image checked;
Second mean flow rate acquisition module, for obtaining the second average brightness value, described second average brightness value is the average brightness value of a preassigned soft image;
Backlight level determination module, the difference of the second average brightness value got for the first average brightness value got according to described first mean flow rate acquisition module, described first average brightness value and described second mean flow rate acquisition module and the backlight level of the curve determination current LCD of pre-rendered brightness value and LCD backlight level;
Backlight value adjustment module, for being adjusted to the backlight value corresponding with the backlight level that described backlight level determination module is determined by the backlight value of current LCD.
The mobile terminal that the embodiment of the present invention provides can be applied in the embodiment of the method one of aforementioned correspondence, and details, see the description of above-described embodiment one, do not repeat them here.
Those of ordinary skill in the art can recognize, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with the combination of electronic hardware or computer software and electronic hardware.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the specific works process of the system of foregoing description, device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
In several embodiments that the application provides, should be understood that disclosed system, apparatus and method can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.
If described function using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part of the part that technical scheme of the present invention contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. various can be program code stored medium.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. regulate a method for brightness of image, it is characterized in that, comprising:
Judge whether the current image checked is high-contrast image;
If described image is high-contrast image, then improve the backlight value of current liquid crystal display LCD.
2. the method for claim 1, is characterized in that, describedly judges whether the current image checked is high-contrast image, comprising:
The described current image checked is divided into the block of pixels of preset number;
Obtain the brightness value of each block of pixels;
Judge whether the described current image checked is high-contrast image according to the brightness value of each block of pixels described.
3. method as claimed in claim 2, it is characterized in that, the brightness value of each block of pixels described in described basis judges whether the described current image checked is high-contrast image, comprising:
Statistics brightness value is more than the quantity of the block of pixels of the first predetermined luminance value;
Statistics brightness value is less than the quantity of the block of pixels of the second predetermined luminance value;
If brightness value is greater than the first present count value more than the quantity of the block of pixels of the first predetermined luminance value, and the quantity that brightness value is less than the block of pixels of the second predetermined luminance value is greater than the second present count value, then the described current image checked is high-contrast image.
4. the method as described in any one of claims 1 to 3, is characterized in that, the backlight value of described raising current liquid crystal display LCD, comprising:
Obtain the first average brightness value, described first average brightness value is the average brightness value of the described current image checked;
Obtain the second average brightness value, described second average brightness value is the average brightness value of a preassigned soft image;
According to the backlight level of the difference of described first average brightness value, described first average brightness value and described second average brightness value and the curve determination current LCD of pre-rendered brightness value and LCD backlight level;
The backlight value of current LCD is adjusted to the backlight value corresponding with described backlight level.
5. regulate a device for brightness of image, it is characterized in that, comprising:
Judging unit, for judging whether the current image checked is high-contrast image;
Regulon, if judge that the described current image checked is high-contrast image for described judging unit, then improves the backlight value of current liquid crystal display LCD.
6. device as claimed in claim 5, it is characterized in that, described judging unit, comprising:
Divide module, for the described current image checked being divided into the block of pixels of preset number;
Acquisition module, for obtaining the brightness value of each block of pixels that described division Module Division obtains;
Judge module, the brightness value for each block of pixels got according to described acquisition module judges whether the described current image checked is high-contrast image.
7. device as claimed in claim 6, it is characterized in that, described judge module, comprising:
First statistics submodule, for adding up the quantity of brightness value more than the block of pixels of the first predetermined luminance value;
Second statistics submodule, is less than the quantity of the block of pixels of the second predetermined luminance value for adding up brightness value;
Judge submodule, if add up for described first statistics submodule the brightness value obtained to be greater than the first present count value more than the quantity of the block of pixels of the first predetermined luminance value, and described second statistics submodule is added up the quantity that the brightness value obtained is less than the block of pixels of the second predetermined luminance value and is greater than the second present count value, then the described current image checked is high-contrast image.
8. the device as described in any one of claim 5 to 7, is characterized in that, described regulon, comprising:
First mean flow rate acquisition module, for obtaining the first average brightness value, described first average brightness value is the average brightness value of the described current image checked;
Second mean flow rate acquisition module, for obtaining the second average brightness value, described second average brightness value is the average brightness value of a preassigned soft image;
Backlight level determination module, the difference of the second average brightness value got for the first average brightness value got according to described first mean flow rate acquisition module, described first average brightness value and described second mean flow rate acquisition module and the backlight level of the curve determination current LCD of pre-rendered brightness value and LCD backlight level;
Backlight value adjustment module, for being adjusted to the backlight value corresponding with the backlight level that described backlight level determination module is determined by the backlight value of current LCD.
9. a mobile terminal, is characterized in that, described mobile terminal comprises the device of the adjustment brightness of image as described in any one of claim 5 to 8.
10. mobile terminal as claimed in claim 9, it is characterized in that, described mobile terminal is smart mobile phone or panel computer.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106061054A (en) * | 2016-05-27 | 2016-10-26 | 联想(北京)有限公司 | Information processing method and electronic device |
| 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 |
| WO2017148136A1 (en) * | 2016-03-02 | 2017-09-08 | Boe Technology Group Co., Ltd. | Method for adjusting backlight brightness levels, realted backlight adjusting device, and related display device |
| CN107153500A (en) * | 2017-04-21 | 2017-09-12 | 努比亚技术有限公司 | It is a kind of to realize the method and apparatus that image is shown |
| CN107610187A (en) * | 2017-09-19 | 2018-01-19 | 青岛海信电器股份有限公司 | A kind of control method, device and endoscope system for medical endoscope and image processing device collection image |
| CN109426639A (en) * | 2017-08-24 | 2019-03-05 | 微星科技股份有限公司 | Display control system and method |
| CN110870295A (en) * | 2018-08-30 | 2020-03-06 | 深圳市大疆创新科技有限公司 | Screen brightness adjusting method, shooting device and system |
| CN116110351A (en) * | 2023-04-13 | 2023-05-12 | 荣耀终端有限公司 | Backlight control method, device, chip, electronic equipment and medium |
| CN117711350A (en) * | 2023-08-23 | 2024-03-15 | 荣耀终端有限公司 | Display control method and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324722A (en) * | 2007-06-13 | 2008-12-17 | 深圳Tcl新技术有限公司 | Method for adjusting liquid crystal display device backlight lightness and contrast |
| US20100182346A1 (en) * | 2009-01-16 | 2010-07-22 | Kabushiki Kaisha Toshiba | Image display device |
| CN102903340A (en) * | 2012-11-12 | 2013-01-30 | 中航华东光电有限公司 | Method for controlling dynamic backlight of LED of liquid crystal display based on dynamic threshold |
| CN103313002A (en) * | 2013-07-05 | 2013-09-18 | 福建邮科通信技术有限公司 | Situation-based mobile streaming media energy-saving optimization method |
-
2015
- 2015-03-16 CN CN201510115191.0A patent/CN104658487B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324722A (en) * | 2007-06-13 | 2008-12-17 | 深圳Tcl新技术有限公司 | Method for adjusting liquid crystal display device backlight lightness and contrast |
| US20100182346A1 (en) * | 2009-01-16 | 2010-07-22 | Kabushiki Kaisha Toshiba | Image display device |
| CN102903340A (en) * | 2012-11-12 | 2013-01-30 | 中航华东光电有限公司 | Method for controlling dynamic backlight of LED of liquid crystal display based on dynamic threshold |
| CN103313002A (en) * | 2013-07-05 | 2013-09-18 | 福建邮科通信技术有限公司 | Situation-based mobile streaming media energy-saving optimization method |
Non-Patent Citations (1)
| Title |
|---|
| 章小兵: "基于局域均值和标准差的LCD动态背光调整", 《液晶与显示》 * |
Cited By (12)
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| WO2017148136A1 (en) * | 2016-03-02 | 2017-09-08 | Boe Technology Group Co., Ltd. | Method for adjusting backlight brightness levels, realted backlight adjusting device, and related display device |
| US10276108B2 (en) | 2016-03-02 | 2019-04-30 | Boe Technology Group Co., Ltd | Methods for adjusting backlight brightness levels, related backlight adjusting device, and related display device |
| CN106061054A (en) * | 2016-05-27 | 2016-10-26 | 联想(北京)有限公司 | Information processing method and electronic 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 |
| CN107153500A (en) * | 2017-04-21 | 2017-09-12 | 努比亚技术有限公司 | It is a kind of to realize the method and apparatus that image is shown |
| CN109426639A (en) * | 2017-08-24 | 2019-03-05 | 微星科技股份有限公司 | Display control system and method |
| CN107610187A (en) * | 2017-09-19 | 2018-01-19 | 青岛海信电器股份有限公司 | A kind of control method, device and endoscope system for medical endoscope and image processing device collection image |
| CN110870295A (en) * | 2018-08-30 | 2020-03-06 | 深圳市大疆创新科技有限公司 | Screen brightness adjusting method, shooting device and system |
| CN116110351A (en) * | 2023-04-13 | 2023-05-12 | 荣耀终端有限公司 | Backlight control method, device, chip, electronic equipment and medium |
| 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 |
| CN117711350A (en) * | 2023-08-23 | 2024-03-15 | 荣耀终端有限公司 | Display control method and electronic equipment |
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