CN108520727A - Screen luminance adjustment method and mobile terminal - Google Patents
Screen luminance adjustment method and mobile terminal Download PDFInfo
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- CN108520727A CN108520727A CN201810266284.7A CN201810266284A CN108520727A CN 108520727 A CN108520727 A CN 108520727A CN 201810266284 A CN201810266284 A CN 201810266284A CN 108520727 A CN108520727 A CN 108520727A
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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Abstract
The present invention provides a kind of screen luminance adjustment method and mobile terminals, are related to technical field of mobile terminals, the method includes：Ambient brightness value is obtained, in the case where ambient brightness value is less than luminance threshold, the number for obtaining bright pixels in the image that mobile terminal is shown is adjusted the brightness of the screen of mobile terminal according to the corresponding scale parameter of bright pixels.Determine whether mobile terminal needs to adjust screen intensity by the ambient brightness value of acquisition, when ambient brightness value is less than luminance threshold, obtain the number of the bright pixels in the image currently shown, and the number of all pixels in image is combined to obtain the corresponding scale parameter of bright pixels, finally the brightness of screen is adjusted according to the scale parameter, the brightness of screen can accurately be adjusted, so that mobile terminal is after adjusting screen intensity, clearly facial image can be obtained, the accuracy and flexibility of adjustment screen intensity are improved.
Description
Technical field
The present embodiments relate to technical field of mobile terminals more particularly to a kind of screen luminance adjustment method and movements eventually
End.
Background technology
With the continuous development of mobile terminal, mobile terminal not only can shoot object or landscape by rear camera
Image can also obtain the facial image of user by front camera, to meet the different demands of user, such as self-timer, shifting
Dynamic terminal unlocking and quick payment etc..
In the related technology, it in the case where mobile terminal is in the lower environment of bright-dark degree, that is to say at mobile terminal
In the case of dark environment, if mobile terminal needs to acquire the facial image of user, mobile terminal can be adjusted
Screen intensity to improve the bright-dark degree of current environment, and then obtains clearly facial image.
But the mode of existing adjustment screen intensity still has that not accurate enough problem such as screen is excessively dark or mistake
It is bright.
Invention content
A kind of screen luminance adjustment method of offer of the embodiment of the present invention and mobile terminal are shielded with solving adjustment in the prior art
Curtain brightness there is a problem of inaccurate.
In order to solve the above-mentioned technical problem, the invention is realized in this way：A kind of method that screen intensity is adjusted, including：
Obtain ambient brightness value；The ambient brightness value is for indicating that mobile terminal is currently located the bright-dark degree of environment；
In the case where the ambient brightness value is less than luminance threshold, obtains in the image that the mobile terminal is shown and become clear
The number of pixel；The bright pixels are the pixel that light and shade parameter value is more than light and shade threshold value；
According to the corresponding scale parameter of the bright pixels, the brightness of the screen of the mobile terminal is adjusted；Institute
It is to be obtained according to the number of all pixels in the number and described image of the bright pixels to state scale parameter.
The embodiment of the present invention additionally provides a kind of mobile terminal, and the mobile terminal includes：
First acquisition module, for obtaining ambient brightness value；The ambient brightness value is for indicating the current institute of mobile terminal
In the bright-dark degree of environment；
Second acquisition module, it is described mobile whole in the case where the ambient brightness value is less than luminance threshold, obtaining
Hold the number of bright pixels in the image of display；The bright pixels are the pixel that light and shade parameter value is more than light and shade threshold value；
Module is adjusted, for according to the corresponding scale parameter of the bright pixels, to the bright of the screen of the mobile terminal
Degree is adjusted；The scale parameter is to be obtained according to the number of all pixels in the number and described image of the bright pixels
It arrives.
An embodiment of the present invention provides a kind of mobile terminal, including processor, memory and it is stored on the memory
And the computer program that can be run on the processor, it is realized as above-mentioned when the computer program is executed by the processor
The step of screen luminance adjustment method described in any one of screen luminance adjustment method.
An embodiment of the present invention provides a kind of computer readable storage medium, stored on the computer readable storage medium
Computer program is realized when the computer program is executed by processor as described in any one of above-mentioned screen luminance adjustment method
Screen luminance adjustment method the step of.
In embodiments of the present invention, determine whether mobile terminal needs adjustment screen bright by the ambient brightness value of acquisition
Degree, when ambient brightness value is less than luminance threshold, it may be determined that mobile terminal needs to adjust screen intensity, then obtains current display
Image in bright pixels number, and the number of all pixels in image is combined to obtain bright pixels corresponding ratio ginseng
Number, is finally adjusted the brightness of screen according to the corresponding scale parameter of the bright pixels, can accurately adjust the bright of screen
Degree so that mobile terminal can obtain clearly facial image after adjusting screen intensity, improve the standard of adjustment screen intensity
Exactness and flexibility.
Description of the drawings
Fig. 1 is a kind of step flow chart of screen luminance adjustment method provided in an embodiment of the present invention；
Fig. 2 is a kind of step flow chart of screen luminance adjustment method provided in an embodiment of the present invention；
Fig. 3 is a kind of structure diagram of mobile terminal provided in an embodiment of the present invention；
Fig. 4 is a kind of hardware architecture diagram of mobile terminal provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
Referring to Fig.1, a kind of step flow chart of screen luminance adjustment method of the embodiment of the present invention is shown, it specifically can be with
Include the following steps：
Step 101, ambient brightness value is obtained.
When mobile terminal is in the dark environment of bright-dark degree, if mobile terminal needs to obtain by front camera
Facial image is taken, then needs that the brightness of the screen of mobile terminal is adjusted according to the bright-dark degree of current environment.
Therefore, mobile terminal can obtain ambient brightness value, so as in subsequent step before the brightness for adjusting screen
In, the brightness of screen is adjusted according to the ambient brightness value.Wherein, the ambient brightness value is for indicating that mobile terminal is currently located ring
The bright-dark degree in border.
It specifically, can be by pre-setting when mobile terminal, which is detected, obtains facial image by front camera
Photosensitive sensor detection current environment bright-dark degree, to obtain the ambient brightness value of current environment.
Step 102, it in the case where ambient brightness value is less than luminance threshold, obtains in the image that mobile terminal is shown and becomes clear
The number of pixel.
When mobile terminal is less than pre-set luminance threshold by the ambient brightness value that photosensitive sensor obtains, explanation
Mobile terminal is currently located in dark environment, can not obtain clearly facial image, it is therefore desirable to be obtained mobile terminal and be shown
Image in the numbers of bright pixels can be in conjunction with the bright pixels in the image obtained, to movement so as in subsequent step
The screen intensity of terminal is adjusted.
Wherein, which can be the pixel that light and shade parameter value is more than light and shade threshold value.Moreover, the light and shade parameter value can
Think color range, or the brightness in HSV (Hue-Saturation-Value, hue-saturation-brightness) color space,
Can also be other kinds of parameter, the embodiment of the present invention does not limit light and shade parameter value.
Specifically, when ambient brightness value is less than luminance threshold, figure that can be currently displayed to the screen of mobile terminal
As carrying out screenshotss, the image currently shown is obtained, and analyze the image of acquisition, determine the light and shade of each pixel in image
Parameter value, then to light and shade parameter value be more than luminance threshold pixel count, that is to say and bright pixels are counted, obtain
The number of bright pixels.
Wherein, which can be determined according to the environment residing for mobile terminal, such as moment, date and geography
Position etc., it is not limited in the embodiment of the present invention.
Step 103, according to the corresponding scale parameter of bright pixels, the brightness of the screen of mobile terminal is adjusted.
Wherein, the scale parameter can the number of all pixels obtains in the number of bright pixels and image according to, example
It such as, can be using the quotient between the total number of included pixel in the number of bright pixels and image as scale parameter.
In acquisition for mobile terminal image after the number of bright pixels, the picture that becomes clear can be determined according to the number of bright pixels
Scale parameter corresponding to element, and then determine the bright-dark degree for the image that mobile terminal is shown, finally according to the image of display
The brightness of screen is adjusted in bright-dark degree.
Specifically, mobile terminal can be calculated according to the total number of all pixels in the number and image of bright pixels
Be compared with pre-set predetermined threshold value to the scale parameter corresponding to bright pixels, and by the scale parameter, according to than
Relatively result determines the bright-dark degree for the image that mobile terminal is shown, and then according to the bright-dark degree of the image of the display and obtains
The brightness needed for clear face image is taken, the screen intensity of mobile terminal is adjusted, so as to obtain clearly face
Image.
For example, the total number of all pixels is 100 in image, the number of bright pixels is 63, then can determine bright picture
Scale parameter corresponding to element is 63/100*100=63%, then by corresponding to the bright pixels scale parameter 63% with it is default
Threshold value 60% is compared, and is determined that the scale parameter corresponding to bright pixels is more than predetermined threshold value, then be may determine that mobile terminal
The image currently shown belongs to light tone system image, finally according to the corresponding brightness adjustment section of light tone system image, to mobile terminal
Screen intensity be adjusted.
In conclusion screen luminance adjustment method provided in an embodiment of the present invention, is determined by the ambient brightness value of acquisition
Whether mobile terminal needs to adjust screen intensity, when ambient brightness value is less than luminance threshold, it may be determined that mobile terminal needs
Screen intensity is adjusted, then obtains the number of the bright pixels in the image currently shown, and combines the number of all pixels in image
Mesh obtains the corresponding scale parameter of bright pixels, is finally carried out to the brightness of screen according to the corresponding scale parameter of the bright pixels
Adjustment, can accurately adjust the brightness of screen so that mobile terminal can obtain clearly face figure after adjusting screen intensity
Picture improves the accuracy and flexibility of adjustment screen intensity.
With reference to Fig. 2, a kind of step flow chart of screen luminance adjustment method of the embodiment of the present invention is shown, it specifically can be with
Include the following steps：
Step 201, judge that camera whether for acquiring facial image, obtains judging result.
Mobile terminal can open camera depending on the user's operation, and shoot image by camera, can shoot scape
Object can also acquire facial image.But mobile terminal needs during acquiring facial image according to current environment
Bright-dark degree adjusts the brightness of screen, meets user's corresponding demand to acquire clearly facial image.
It therefore, can be in order to avoid mobile terminal is also adjusted screen intensity when that need not acquire facial image
First judge that the camera of mobile terminal whether for acquiring facial image, obtains judging result, it, can be with so as in subsequent step
It is determined the need for adjusting screen intensity according to judging result.
Optionally, the state that the camera of mobile terminal can be monitored, when mobile terminal monitors the camera in unlatching
When state, then it may determine that the camera whether for acquiring facial image, obtains judging result.
Specifically, mobile terminal can monitor whether user opens camera in real time, when monitoring taking the photograph for mobile terminal
As head from closed state variation be open state when, then can according to the current state of mobile terminal, pass through camera obtain figure
Whether the function etc. corresponding to the operation of the application program of picture and the unlatching camera of user's triggering, judge camera for adopting
Collect facial image, to obtain judging result.
For example, if mobile terminal monitors that user opens front camera, the current shape of mobile terminal can be obtained
State.If mobile terminal is in screen lock state, and the work(of the corresponding unlock mobile terminal of operation of the unlatching camera of user's triggering
Can, then camera can be determined for acquiring facial image, to obtain judging result.
Step 202, when judging result instruction camera is for when acquiring facial image, obtaining ambient brightness value.
This step 202 is similar with step 101, and details are not described herein.
Step 203, luminance threshold is obtained.
Due to being influenced by time, season and geographical location, mobile terminal is in different moments, Various Seasonal and differently
The bright-dark degree for managing position local environment is also different, therefore can be obtained and current according to the environment residing for mobile terminal
The corresponding luminance threshold of environment.
Optionally, mobile terminal can obtain environmental parameter, and according to pre-set correspondence, determine and the environment
The corresponding luminance threshold of parameter.Wherein, the environmental parameter may include the geographical location of mobile terminal, current date and it is current when
At least one of carve.
Specifically, mobile terminal can obtain the current date according to systematic parameter, that is to say that current date institute is right
The date answered determines the season being presently in；Geographical location can also be obtained according to systematic parameter, determined residing for mobile terminal
Longitude and latitude；Current time can also be obtained according to systematic parameter, be determined at mobile terminal in conjunction with current date and geographical location
It is in night environment in daytime environment.The environmental parameter phase for obtaining and obtaining is searched in pre-set correspondence again
Corresponding luminance threshold, to obtain luminance threshold corresponding with current environment.
It should be noted that step 203 can execute before step 202, it that is to say and determine that camera needs in step 201
Shoot and execute step 203 after facial image, step 203 can also be performed simultaneously with step 202, the embodiment of the present invention to this not
It limits.
Step 204, it in the case where ambient brightness value is less than luminance threshold, obtains in the image that mobile terminal is shown and becomes clear
The number of pixel.
Wherein, which is the pixel that light and shade parameter value is more than light and shade threshold value.
If mobile terminal after relatively ambient brightness value and luminance threshold, determines that ambient brightness value is less than luminance threshold
Value is then illustrated that mobile terminal needs to adjust the brightness of screen, is reinforced with the bright-dark degree to current environment.
Moreover, in order to which the screen intensity to mobile terminal is accurately adjusted, mobile terminal can also obtain current display
Image bright-dark degree, to be adjusted to the brightness of screen according to the bright-dark degree of image.Therefore, step 204 can be with
Including any one in step 204a and step 204b, to determine the bright-dark degree of the image currently shown.
Step 204a determines the light and shade parameter value of each pixel in the image that mobile terminal is shown, big to light and shade parameter value
It is counted in the pixel of light and shade threshold value, obtains the number of bright pixels.
Specifically, when mobile terminal determines that ambient brightness value is less than luminance threshold, mobile terminal can be intercepted and currently shown
The image shown, and analyzing truncated picture, obtains the light and shade parameter value of each pixel in image, then by each pixel
Light and shade parameter value is compared with pre-set light and shade threshold value, light and shade parameter value can be more than light and shade threshold according to comparison result
The pixel of value is as bright pixels.
After the bright pixels in determining image, mobile terminal can count determining bright pixels, finally
The number of bright pixels is obtained, to adjust the brightness of screen according to the number of bright pixels in subsequent step.
For example, when mobile terminal shows the image of night-time scene, then the number of bright pixels is less in image；But
If the image that mobile terminal is shown is the image of daytime scene, the number of bright pixels is more in image.
Step 204b divides the image that mobile terminal is shown, obtains at least two subgraphs, to each subgraph
It is analyzed, obtains the light and shade parameter value of each pixel in each subgraph, light and shade parameter value in each subgraph is more than bright
The pixel of dark threshold value is counted, and the number of the corresponding bright pixels of each subgraph is obtained.
The image of display can be divided into multiple regions by mobile terminal, and using the image shown in each region as son
Image obtains multiple subgraphs.Since the content that each subgraph is shown may be different, then what each subgraph included becomes clear
The number of pixel may also be different, therefore mobile terminal can be in subsequent step, according to bright pixels in each subgraph
Number adjusts the brightness of the corresponding screen in each subgraph region.
Specifically, the image of display can be divided at least two subgraphs by mobile terminal, then in each subgraph
Each pixel analyzed, obtain the light and shade parameter value of each pixel in each subgraph, then the light and shade of each pixel is joined
Numerical value is compared with pre-set light and shade threshold value, obtains the number of the corresponding bright pixels of each subgraph.
Similar with step 204a, mobile terminal can also first obtain the light and shade parameter value of each pixel in image, to
It determines the bright pixels in image, further according to the coordinate information corresponding to each bright pixels, determines belonging to each bright pixels
Subgraph, finally determine the number of the corresponding bright pixels of each subgraph.
It is, of course, also possible to determine the number of the corresponding bright pixels of each subgraph using other modes, the present invention is implemented
Example does not limit this.
Step 205, according to the corresponding scale parameter of bright pixels, the brightness of the screen of mobile terminal is adjusted.
Wherein, which is to be obtained according to the number of all pixels in the number and image of bright pixels.
Mobile terminal determine display image in bright pixels number after, then can be according to the number of the bright pixels
The scale parameter corresponding to bright pixels is calculated in mesh, is finally adjusted to the brightness of screen according to the scale parameter, with
Just mobile terminal can acquire clearly facial image.
The number of bright pixels is obtained since different modes may be used in step 204, then also may be used in this step 205
To adjust the brightness of screen in different ways.Therefore, corresponding with step 204, step 205 can also include step
Any one in 205a and step 205b：
Step 205a, when the corresponding scale parameter of bright pixels is more than predetermined threshold value, according in the first brightness section
Brightness adjustment parameter is adjusted the brightness of the screen of mobile terminal, and/or, when the corresponding scale parameter of bright pixels not
When more than predetermined threshold value, according to the brightness adjustment parameter in the second brightness section, the brightness of the screen of mobile terminal is adjusted
It is whole.
Wherein, the maximum brightness adjusting parameter value of the first brightness section is less than the minimum brightness adjustment ginseng of the second brightness section
Numerical value.For example, the corresponding brightness adjustment parameter of the first brightness section can be (0,30%), and the second brightness section is corresponding bright
It can be [30%, 1] to spend adjusting parameter.
Mobile terminal can be counted according to the number of all pixels in the numbers of bright pixels and the image currently shown
It calculates, obtains scale parameter corresponding with bright pixels, then the scale parameter is compared with pre-set predetermined threshold value,
Determine the bright-dark degree of the image currently shown.When the corresponding scale parameter of bright pixels is more than predetermined threshold value, illustrate current
The image of display belongs to the image of light tone system, then the brightness adjustment parameter that mobile terminal can include according to the first brightness section,
The brightness of the screen of mobile terminal is adjusted on a small quantity.
But if the corresponding scale parameter of bright pixels is less than or equal to predetermined threshold value, illustrate the image category currently shown
In the image of dead color system, then the brightness adjustment parameter that mobile terminal can include according to the second brightness section, to mobile terminal
Screen intensity is largely adjusted, to improve the bright-dark degree of current environment, to obtain clearly facial image.
It should be noted that the environment bright-dark degree needed for mobile terminal acquisition clear face image is constant, and move
The bright-dark degree for the image that dynamic terminal is currently shown is different.It therefore, can be according to brightness needed for mobile terminal and current
Brightness adjustment corresponding with current environment is chosen in the brightness of the image of display from the first brightness section or the second brightness section
Parameter completes the adjustment of screen intensity.
Step 205b chooses the first subgraph and the second subgraph from least two subgraphs, according to the first brightness region
Between in brightness adjustment parameter, to the bright of the corresponding screen in the first subgraph of each of at least two subgraph region
Degree is adjusted；According to the brightness adjustment parameter in the second brightness section, to the second son of each of at least two subgraph
The brightness of the corresponding screen in image region is adjusted.
Wherein, the corresponding scale parameter of bright pixels is more than predetermined threshold value in first subgraph, in second subgraph
The corresponding scale parameter of bright pixels is not more than the predetermined threshold value.
Mobile terminal can be calculated according to the number of the bright pixels of each subgraph at least two subgraphs, really
Determine the ratio shared in corresponding subgraph of the bright pixels in each subgraph, obtains the bright pixels institute of each subgraph
The scale parameter is compared by corresponding scale parameter with predetermined threshold value, determines that each subgraph is to belong to light tone system image
Dead color system image is still fallen within, to which each sub-image regions are divided into the first subgraph and the second subgraph, finally according to first
Brightness adjustment parameter in brightness section is adjusted the screen intensity of each first subgraph affiliated area, according to second
Brightness adjustment parameter in brightness section is adjusted the screen intensity of each second subgraph affiliated area.
It should be noted that the brightness adjustment parameter in the first brightness section of mobile terminal or the second brightness section, to each
The process that the brightness of the corresponding screen in a subgraph region is adjusted, similar with step 205a, details are not described herein.
In conclusion screen luminance adjustment method provided in an embodiment of the present invention, is determined by the ambient brightness value of acquisition
Whether mobile terminal needs to adjust screen intensity, when ambient brightness value is less than luminance threshold, it may be determined that mobile terminal needs
Screen intensity is adjusted, then obtains the number of the bright pixels in the image currently shown, and combines the number of all pixels in image
Mesh obtains the corresponding scale parameter of bright pixels, is finally carried out to the brightness of screen according to the corresponding scale parameter of the bright pixels
Adjustment, can accurately adjust the brightness of screen so that mobile terminal can obtain clearly face figure after adjusting screen intensity
Picture improves the accuracy and flexibility of adjustment screen intensity.
Further, the image shown by obtaining mobile terminal, and the image of acquisition is analyzed, obtain light and shade ginseng
Numerical value is more than the bright pixels of light and shade threshold value, determines the number of bright pixels, by image that mobile terminal is currently shown into
Row analysis, can determine the number of bright pixels in the image currently shown, accurately to be adjusted according to the number of bright pixels
The brightness of screen improves the accuracy of adjustment brightness.
Further, by the magnitude relationship between the corresponding scale parameter of bright pixels and predetermined threshold value, using difference
Brightness adjustment parameter in brightness section is adjusted the screen intensity of different size relationship so that display dead color is image
Adjustment intensity of the adjustment intensity of screen always than the screen of display light tone system image is high, improves the accurate of adjustment screen intensity
Property.
Further, by being divided to the image currently shown, at least two subgraphs are obtained, to according to each
Bright pixels in subgraph are adjusted the screen intensity corresponding to each subgraph respectively, can be directed to different subgraphs
The content of display adjusts the brightness of corresponding screen, can improve the accuracy of adjustment brightness.
Further, by monitoring the state of camera, when monitoring that camera is in open state, judge that camera is
It is no to need to acquire facial image, if necessary to acquire facial image, then it can obtain ambient brightness value and execute subsequent step, but
It is that, if camera need not acquire facial image, can no longer execute subsequent step, avoids without acquiring facial image
Still the case where adjusting screen intensity, saves the operating cost of shooting image.
Further, according to the environmental parameter of mobile terminal local environment, luminance threshold corresponding with the environmental parameter is obtained
Value, the environmental parameter may include at least one of geographical location, current date and current time, be joined by different environment
Number determines different luminance thresholds, to more accurately judge whether mobile terminal needs to adjust screen intensity, improves tune
The accuracy of whole screen intensity.
With reference to Fig. 3, shows a kind of structure diagram of mobile terminal of the embodiment of the present invention, can specifically include：
First acquisition module 301, for obtaining ambient brightness value；The ambient brightness value is for indicating the current institute of mobile terminal
In the bright-dark degree of environment；
Second acquisition module 302, in the case where the ambient brightness value is less than luminance threshold, obtaining the mobile terminal
The number of bright pixels in the image of display；The bright pixels are the pixel that light and shade parameter value is more than light and shade threshold value；
Module 303 is adjusted, is used for according to the corresponding scale parameter of the bright pixels, the brightness to the screen of the mobile terminal
It is adjusted；The number of the bright pixels and the number of all pixels in the image obtain according to the scale parameter.
Optionally, which may include：
Parameter determination submodule, the light and shade parameter value for determining each pixel in image that the mobile terminal is shown；
Statistic submodule, the pixel for being more than the light and shade threshold value to light and shade parameter value count, and obtain the bright picture
The number of element.
Optionally, which may include：
The first adjustment submodule is used for when the corresponding scale parameter of the bright pixels is more than predetermined threshold value, according to first
Brightness adjustment parameter in brightness section, is adjusted the brightness of the screen of the mobile terminal；And/or
Second adjustment submodule is used for when the corresponding scale parameter of the bright pixels is not more than the predetermined threshold value, according to
Brightness adjustment parameter in second brightness section is adjusted the brightness of the screen of the mobile terminal, first brightness section
Maximum brightness adjusting parameter value is less than the minimum brightness adjusting parameter value of second brightness section.
Optionally, which may include：
Image divides submodule, and the image for being shown to the mobile terminal divides, and obtains at least two subgraphs；
Image analysis submodule obtains the bright of each pixel in each subgraph for analyzing each subgraph
Dark parameter value；
Statistic submodule, the pixel for being more than the light and shade threshold value to light and shade parameter value in each subgraph count,
Obtain the number of the corresponding bright pixels of each subgraph.
Optionally, which may include：
Submodule is chosen, for choosing the first subgraph and the second subgraph from least two subgraph, this first
The corresponding scale parameter of bright pixels is more than predetermined threshold value in subgraph, and the corresponding ratio of bright pixels is joined in second subgraph
Number is not more than the predetermined threshold value；
The first adjustment submodule is used for according to the brightness adjustment parameter in the first brightness section, at least two subgraph
The brightness of each of the picture corresponding screen in the first subgraph region is adjusted；
Second adjustment submodule is used for according to the brightness adjustment parameter in the second brightness section, at least two subgraph
The brightness of each of the picture corresponding screen in the second subgraph region is adjusted.
Optionally, which can also include：
Monitoring modular, the state of the camera for monitoring the mobile terminal；
Judgment module, for when monitoring that the camera is in open state, judging whether the camera needs to acquire people
Face image obtains judging result；
First acquisition module 301 may include：
Acquisition submodule, for when the judging result indicates that the camera needs to acquire facial image, obtaining the environment
Brightness value.
Optionally, which can also include：
Third acquisition module, for obtaining environmental parameter, which includes the geographical location, current of the mobile terminal
At least one of date and current time；
Threshold determination module, for according to pre-set correspondence, determining luminance threshold corresponding with the environmental parameter
Value.
Mobile terminal provided in an embodiment of the present invention can realize that mobile terminal is realized in the embodiment of the method for Fig. 1 to Fig. 2
Each process, to avoid repeating, which is not described herein again.
In conclusion mobile terminal provided in an embodiment of the present invention, mobile terminal is determined by the ambient brightness value of acquisition
Whether need to adjust screen intensity, when ambient brightness value is less than luminance threshold, it may be determined that mobile terminal needs to adjust screen
Brightness, then the number of the bright pixels in the image currently shown is obtained, and it is bright to combine the number of all pixels in image to obtain
The corresponding scale parameter of bright pixel is finally adjusted the brightness of screen according to the corresponding scale parameter of the bright pixels, energy
The brightness of enough accurate adjustment screens so that mobile terminal can obtain clearly facial image after adjusting screen intensity, improve
The accuracy and flexibility of adjustment screen intensity.
A kind of hardware architecture diagram of Fig. 4 mobile terminals of each embodiment to realize the present invention, the mobile terminal 400
Including but not limited to：Radio frequency unit 401, audio output unit 403, input unit 404, sensor 405, is shown network module 402
Show the components such as unit 406, user input unit 407, interface unit 408, memory 409, processor 410 and power supply 411.
It will be understood by those skilled in the art that mobile terminal structure shown in Fig. 4 does not constitute the restriction to mobile terminal, it is mobile whole
End may include either combining certain components or different components arrangement than illustrating more or fewer components.In the present invention
In embodiment, mobile terminal includes but not limited to mobile phone, tablet computer, laptop, palm PC, car-mounted terminal, can wear
Wear equipment and pedometer etc..
Wherein, sensor 405, for obtaining ambient brightness value；The ambient brightness value is for indicating that mobile terminal is current
The bright-dark degree of place environment；
Processor 410, in the case where the ambient brightness value is less than luminance threshold, it is aobvious to obtain the mobile terminal
The number of bright pixels in the image shown；The bright pixels are the pixel that light and shade parameter value is more than light and shade threshold value；
Processor 410, is additionally operable to according to the corresponding scale parameter of the bright pixels, to the screen of the mobile terminal
Brightness is adjusted；The scale parameter is to be obtained according to the number of all pixels in the number and described image of the bright pixels
It arrives.
In conclusion mobile terminal provided in an embodiment of the present invention, mobile terminal is determined by the ambient brightness value of acquisition
Whether need to adjust screen intensity, when ambient brightness value is less than luminance threshold, it may be determined that mobile terminal needs to adjust screen
Brightness, then the number of the bright pixels in the image currently shown is obtained, and it is bright to combine the number of all pixels in image to obtain
The corresponding scale parameter of bright pixel is finally adjusted the brightness of screen according to the corresponding scale parameter of the bright pixels, energy
The brightness of enough accurate adjustment screens so that mobile terminal can obtain clearly facial image after adjusting screen intensity, improve
The accuracy and flexibility of adjustment screen intensity.
It should be understood that the embodiment of the present invention in, radio frequency unit 401 can be used for receiving and sending messages or communication process in, signal
Send and receive, specifically, by from base station downlink data receive after, to processor 410 handle；In addition, by uplink
Data are sent to base station.In general, radio frequency unit 401 includes but not limited to antenna, at least one amplifier, transceiver, coupling
Device, low-noise amplifier, duplexer etc..In addition, radio frequency unit 401 can also by radio communication system and network and other set
Standby communication.
Mobile terminal has provided wireless broadband internet to the user by network module 402 and has accessed, and such as user is helped to receive
Send e-mails, browse webpage and access streaming video etc..
It is that audio output unit 403 can receive radio frequency unit 401 or network module 402 or in memory 409
The audio data of storage is converted into audio signal and exports to be sound.Moreover, audio output unit 403 can also be provided and be moved
The relevant audio output of specific function that dynamic terminal 400 executes is (for example, call signal receives sound, message sink sound etc.
Deng).Audio output unit 403 includes loud speaker, buzzer and receiver etc..
Input unit 404 is for receiving audio or video signal.Input unit 404 may include graphics processor
(Graphics Processing Unit, GPU) 4041 and microphone 4042, graphics processor 4041 is in video acquisition mode
Or the image data of the static images or video obtained by image capture apparatus (such as camera) in image capture mode carries out
Reason.Treated, and picture frame may be displayed on display unit 406.Through graphics processor 4041, treated that picture frame can be deposited
Storage is sent in memory 409 (or other storage mediums) or via radio frequency unit 401 or network module 402.Mike
Wind 4042 can receive sound, and can be audio data by such acoustic processing.Treated audio data can be
The format output of mobile communication base station can be sent to via radio frequency unit 401 by being converted in the case of telephone calling model.
Mobile terminal 400 further includes at least one sensor 405, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 4061, and proximity sensor can close when mobile terminal 400 is moved in one's ear
Display panel 4061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, size and the direction of gravity are can detect that when static, can be used to identify mobile terminal posture (ratio
Such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap)；It passes
Sensor 405 can also include fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, wet
Meter, thermometer, infrared sensor etc. are spent, details are not described herein.
Display unit 406 is for showing information input by user or being supplied to the information of user.Display unit 406 can wrap
Display panel 4061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode may be used
Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 4061.
User input unit 407 can be used for receiving the number or character information of input, and generate the use with mobile terminal
Family is arranged and the related key signals input of function control.Specifically, user input unit 407 include touch panel 4071 and
Other input equipments 4072.Touch panel 4071, also referred to as touch screen collect user on it or neighbouring touch operation
(for example user uses any suitable objects or attachment such as finger, stylus on touch panel 4071 or in touch panel 4071
Neighbouring operation).Touch panel 4071 may include both touch detecting apparatus and touch controller.Wherein, touch detection
Device detects the touch orientation of user, and detects the signal that touch operation is brought, and transmits a signal to touch controller；Touch control
Device processed receives touch information from touch detecting apparatus, and is converted into contact coordinate, then gives processor 410, receiving area
It manages the order that device 410 is sent and is executed.Furthermore, it is possible to more using resistance-type, condenser type, infrared ray and surface acoustic wave etc.
Type realizes touch panel 4071.In addition to touch panel 4071, user input unit 407 can also include other input equipments
4072.Specifically, other input equipments 4072 can include but is not limited to physical keyboard, function key (such as volume control button,
Switch key etc.), trace ball, mouse, operating lever, details are not described herein.
Further, touch panel 4071 can be covered on display panel 4061, when touch panel 4071 is detected at it
On or near touch operation after, send processor 410 to determine the type of touch event, be followed by subsequent processing device 410 according to touch
The type for touching event provides corresponding visual output on display panel 4061.Although in Fig. 4, touch panel 4071 and display
Panel 4061 is to realize the function that outputs and inputs of mobile terminal as two independent components, but in some embodiments
In, can be integrated by touch panel 4071 and display panel 4061 and realize the function that outputs and inputs of mobile terminal, it is specific this
Place does not limit.
Interface unit 408 is the interface that external device (ED) is connect with mobile terminal 400.For example, external device (ED) may include having
Line or wireless head-band earphone port, external power supply (or battery charger) port, wired or wireless data port, storage card end
Mouth, port, the port audio input/output (I/O), video i/o port, earphone end for connecting the device with identification module
Mouthful etc..Interface unit 408 can be used for receiving the input (for example, data information, electric power etc.) from external device (ED) and
By one or more elements that the input received is transferred in mobile terminal 400 or can be used in 400 He of mobile terminal
Transmission data between external device (ED).
Memory 409 can be used for storing software program and various data.Memory 409 can include mainly storing program area
And storage data field, wherein storing program area can storage program area, application program (such as the sound needed at least one function
Sound playing function, image player function etc.) etc.；Storage data field can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 409 may include high-speed random access memory, can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 410 is the control centre of mobile terminal, utilizes each of various interfaces and the entire mobile terminal of connection
A part by running or execute the software program and/or module that are stored in memory 409, and calls and is stored in storage
Data in device 409 execute the various functions and processing data of mobile terminal, to carry out integral monitoring to mobile terminal.Place
Reason device 410 may include one or more processing units；Preferably, processor 410 can integrate application processor and modulatedemodulate is mediated
Manage device, wherein the main processing operation system of application processor, user interface and application program etc., modem processor is main
Processing wireless communication.It is understood that above-mentioned modem processor can not also be integrated into processor 410.
Mobile terminal 400 can also include the power supply 411 (such as battery) powered to all parts, it is preferred that power supply 411
Can be logically contiguous by power-supply management system and processor 410, to realize management charging by power-supply management system, put
The functions such as electricity and power managed.
In addition, mobile terminal 400 includes some unshowned function modules, details are not described herein.
Preferably, the embodiment of the present invention also provides a kind of mobile terminal, including processor 410, and memory 409 is stored in
On memory 409 and the computer program that can be run on the processor 410, the computer program are executed by processor 410
Each process of the above-mentioned screen luminance adjustment method embodiments of Shi Shixian, and identical technique effect can be reached, to avoid repeating,
Which is not described herein again.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, the computer program realize each process of above-mentioned screen luminance adjustment method embodiment when being executed by processor,
And identical technique effect can be reached, to avoid repeating, which is not described herein again.Wherein, the computer readable storage medium,
Such as read-only memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, letter
Claim RAM), magnetic disc or CD etc..
It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements include not only those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
There is also other identical elements in the process of element, method, article or device.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical scheme of the present invention substantially in other words does the prior art
Going out the part of contribution can be expressed in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions are used so that a station terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited in above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form belongs within the protection of the present invention.
Claims (11)
1. a kind of screen luminance adjustment method is applied to mobile terminal, which is characterized in that the method includes：
Obtain ambient brightness value；The ambient brightness value is for indicating that mobile terminal is currently located the bright-dark degree of environment；
In the case where the ambient brightness value is less than luminance threshold, bright pixels in the image that the mobile terminal is shown are obtained
Number；The bright pixels are the pixel that light and shade parameter value is more than light and shade threshold value；
According to the corresponding scale parameter of the bright pixels, the brightness of the screen of the mobile terminal is adjusted；The ratio
Example parameter is to be obtained according to the number of all pixels in the number and described image of the bright pixels.
2. according to the method described in claim 1, it is characterized in that, described obtain in the image that the mobile terminal is shown is become clear
The number of pixel, including：
Determine the light and shade parameter value of each pixel in the image that the mobile terminal is shown；
The pixel for being more than the light and shade threshold value to light and shade parameter value counts, and obtains the number of the bright pixels.
3. according to the method described in claim 1, it is characterized in that, described according to the corresponding scale parameter of the bright pixels,
The brightness of the screen of the mobile terminal is adjusted, including：
When the corresponding scale parameter of the bright pixels is more than predetermined threshold value, joined according to the brightness adjustment in the first brightness section
Number, is adjusted the brightness of the screen of the mobile terminal；And/or
When the corresponding scale parameter of the bright pixels is not more than the predetermined threshold value, according to the brightness in the second brightness section
Adjusting parameter is adjusted the brightness of the screen of the mobile terminal, the maximum brightness adjustment ginseng of first brightness section
Numerical value is less than the minimum brightness adjusting parameter value of second brightness section.
4. according to the method described in claim 1, it is characterized in that, described obtain in the image that the mobile terminal is shown is become clear
The number of pixel, including：
The image shown to the mobile terminal divides, and obtains at least two subgraphs；
Each subgraph is analyzed, the light and shade parameter value of each pixel in each subgraph is obtained；
The pixel for being more than the light and shade threshold value to light and shade parameter value in each subgraph counts, and obtains each subgraph and corresponds to
Bright pixels number.
5. according to the method described in claim 4, it is characterized in that, described according to the corresponding scale parameter of the bright pixels,
The brightness of the screen of the mobile terminal is adjusted, including：
Choose the first subgraph and the second subgraph from least two subgraph, bright pixels in first subgraph
Corresponding scale parameter is more than predetermined threshold value, and the corresponding scale parameter of bright pixels is no more than described pre- in second subgraph
If threshold value；
According to the brightness adjustment parameter in the first brightness section, to the first subgraph of each of described at least two subgraph institute
In region, the brightness of corresponding screen is adjusted；
According to the brightness adjustment parameter in the second brightness section, to the second subgraph of each of described at least two subgraph institute
In region, the brightness of corresponding screen is adjusted.
6. a kind of mobile terminal, which is characterized in that the mobile terminal includes：
First acquisition module, for obtaining ambient brightness value；The ambient brightness value is for indicating that mobile terminal is currently located ring
The bright-dark degree in border；
Second acquisition module, in the case where the ambient brightness value is less than luminance threshold, it is aobvious to obtain the mobile terminal
The number of bright pixels in the image shown；The bright pixels are the pixel that light and shade parameter value is more than light and shade threshold value；
Adjust module, for according to the corresponding scale parameter of the bright pixels, to the brightness of the screen of the mobile terminal into
Row adjustment；The scale parameter is to be obtained according to the number of all pixels in the number and described image of the bright pixels.
7. mobile terminal according to claim 6, which is characterized in that second acquisition module includes：
Parameter determination submodule, the light and shade parameter value for determining each pixel in image that the mobile terminal is shown；
Statistic submodule, the pixel for being more than the light and shade threshold value to light and shade parameter value count, and obtain the bright picture
The number of element.
8. mobile terminal according to claim 6, which is characterized in that the adjustment module includes：
The first adjustment submodule is used for when the corresponding scale parameter of the bright pixels is more than predetermined threshold value, bright according to first
The brightness adjustment parameter in section is spent, the brightness of the screen of the mobile terminal is adjusted；And/or
Second adjustment submodule is used for when the corresponding scale parameter of the bright pixels is not more than the predetermined threshold value, according to
Brightness adjustment parameter in second brightness section is adjusted the brightness of the screen of the mobile terminal, first brightness region
Between maximum brightness adjusting parameter value be less than second brightness section minimum brightness adjusting parameter value.
9. mobile terminal according to claim 6, which is characterized in that second acquisition module includes：
Image divides submodule, and the image for being shown to the mobile terminal divides, and obtains at least two subgraphs；
Image analysis submodule obtains the light and shade ginseng of each pixel in each subgraph for analyzing each subgraph
Numerical value；
Statistic submodule, the pixel for being more than the light and shade threshold value to light and shade parameter value in each subgraph are counted, are obtained
To the number of the corresponding bright pixels of each subgraph.
10. mobile terminal according to claim 9, which is characterized in that the adjustment module includes：
Submodule is chosen, for choosing the first subgraph and the second subgraph from least two subgraph, described first
The corresponding scale parameter of bright pixels is more than predetermined threshold value in subgraph, the corresponding ratio of bright pixels in second subgraph
Parameter is not more than the predetermined threshold value；
The first adjustment submodule is used for according to the brightness adjustment parameter in the first brightness section, at least two subgraph
Each of the brightness of the corresponding screen in the first subgraph region be adjusted；
Second adjustment submodule is used for according to the brightness adjustment parameter in the second brightness section, at least two subgraph
Each of the brightness of the corresponding screen in the second subgraph region be adjusted.
11. a kind of mobile terminal, which is characterized in that including processor, memory and be stored on the memory and can be in institute
The computer program run on processor is stated, such as claim 1 to 5 is realized when the computer program is executed by the processor
Any one of described in screen luminance adjustment method the step of.
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