CN107067004A - The adjusting method and device of a kind of electronic equipment and its screen intensity - Google Patents
The adjusting method and device of a kind of electronic equipment and its screen intensity Download PDFInfo
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- CN107067004A CN107067004A CN201710165610.0A CN201710165610A CN107067004A CN 107067004 A CN107067004 A CN 107067004A CN 201710165610 A CN201710165610 A CN 201710165610A CN 107067004 A CN107067004 A CN 107067004A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/25—Determination of region of interest [ROI] or a volume of interest [VOI]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/21—Design or setup of recognition systems or techniques; Extraction of features in feature space; Blind source separation
- G06F18/214—Generating training patterns; Bootstrap methods, e.g. bagging or boosting
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/56—Extraction of image or video features relating to colour
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/40—Extraction of image or video features
- G06V10/60—Extraction of image or video features relating to illumination properties, e.g. using a reflectance or lighting model
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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- Evolutionary Biology (AREA)
- Evolutionary Computation (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Engineering & Computer Science (AREA)
- Bioinformatics & Computational Biology (AREA)
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- Controls And Circuits For Display Device (AREA)
Abstract
The present invention provides the adjusting method and device of a kind of electronic equipment and its screen intensity, wherein, electronic equipment screen brightness is adjusted for the adjusting method image content-based of the screen intensity, and specific steps include：Detect the area-of-interest of display image on electronic equipment screen；The display effect of electronic equipment current screen brightness is determined according to the area-of-interest, and performs on the electronic equipment display effect.In addition, the present invention additionally provides the electronic equipment screen brightness regulating apparatus and electronic equipment of a kind of corresponding image content-based according to the above method, electronic equipment can be made to be maintained at one compared with being operated under low energy consumption, and preferable Consumer's Experience can be ensured simultaneously.
Description
Technical field
The present invention relates to image processing techniques, more particularly to the adjusting method of a kind of electronic equipment and its screen intensity and
Device.
Background technology
The mode set generally by manual adjustment adjusts the brightness of screen, or according to ambient light environment come automatic
The brightness of screen is adjusted, electronic equipment can all be constantly in constant highlighted level in the case of foregoing two kinds of regulative modes.In electricity
During sub- equipment use, user can experience following weak point：First, the power of ambient light sees cls to cellie
Curtain has a great impact, for example, the mobile phone screen that can be seen clearly under indoor light is to just seeing not under outdoor strong solar radiation
It is clear；Second, one on the whole bright screen background picture partially match relatively dark screen luminance of mobile phone and common background
Picture, which matches highlighted screen luminance of mobile phone, can give user's almost same visual experience, therefore, electronic equipment screen brightness one
It is that a larger electricity expends for this embedded device of mobile phone when being directly in constant highlighted level.
For these reasons, it is necessary to which the adjusting method of the screen intensity of electronic equipment is improved.
The content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of electronic equipment and its screen are bright
The adjusting method and device of degree, adjust that Consumer's Experience is not good and inadequate energy-conservation for solving the screen intensity of existing electronic equipment
The problem of.
In order to achieve the above objects and other related objects, the present invention provides following technical scheme：
A kind of electronic equipment screen brightness adjusting method of image content-based, including：Detect and show on electronic equipment screen
The area-of-interest of diagram picture；Determine the display effect of electronic equipment current screen brightness according to the area-of-interest, and
The display effect is performed on the electronic equipment.
Preferably, the display effect of electronic equipment current screen brightness is determined according to the area-of-interest, and described
The display effect is performed on electronic equipment to specifically include：Extract the brightness of the area-of-interest, saturation degree, entropy；According to pre-
If mapping function determine the display effect of the electronic equipment current screen brightness corresponding with the brightness, saturation degree, entropy；
The display effect is performed on the electronic equipment.
A kind of electronic equipment screen brightness regulating apparatus of image content-based, including：Image detection module, for detecting
The area-of-interest of display image on electronic equipment screen；Brightness vision-control module, for true according to the area-of-interest
Determine the display effect of electronic equipment current screen brightness, and perform on the electronic equipment display effect.
Preferably, the brightness vision-control module is specifically included：Feature extraction unit, for extracting the region of interest
The brightness in domain, saturation degree, entropy；Display effect confirmation unit, for being determined and the brightness, saturation according to default mapping function
The display effect of the corresponding electronic equipment current screen brightness of degree, entropy；Execution unit is shown, in the electronic equipment
Perform the display effect.
A kind of electronic equipment, includes the electronic equipment screen brightness regulating apparatus of any of the above-described kind of image content-based.
Preferably, the electronic equipment includes following at least one equipment:Smart mobile phone, tablet personal computer, wearable device, electricity
Sub- display device.
As described above, the invention has the advantages that：
1) using ROI partial analysis method, the calculating of substantial amounts of pixel has been skipped, the time-consuming of algorithm is reduced.
2) mapping relations of characteristics of image and human eye vision brightness are have found, human eye is obtained by regression model more quickly
The brightness most adapted to.
3) difference of picture material is directed to, the backlight difference of reduction and the brightness difference of lifting is reached, has accomplished intelligence
Processing.Picture is divided into using piecewise linearity equation by several intervals, the picture classification of different scenes can be handled.
4) in the case where ensureing that picture quality do not reduce, brightness of image is lifted, the backlight value of reduction is compensated, user's energy is allowed
Enough experience the picture very nearly the same with artwork.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the electronic equipment screen brightness adjusting method of image content-based according to the present invention.
Fig. 2 is the specific method flow chart for the display effect that electronic equipment screen brightness is obtained according to area-of-interest.
Fig. 3 is a kind of schematic diagram of the electronic equipment screen brightness regulating apparatus of image content-based according to the present invention.
Fig. 4 is the schematic diagram of brightness vision-control module in electronic equipment screen brightness regulating apparatus of the present invention.
Drawing reference numeral explanation
200 electronic equipment screen brightness regulating apparatus
210 image detection modules
220 brightness vision-control modules
221 feature extraction units
222 display effect confirmation units
223 display execution units
S11-S12 steps
S121-S123 steps
Embodiment
Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through specific realities different in addition
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.It should be noted that, in the case where not conflicting, following examples and implementation
Feature in example can be mutually combined.
It should be noted that the diagram provided in following examples only illustrates the basic structure of the present invention in a schematic way
Think, then in schema only display with relevant component in the present invention rather than according to component count, shape and the size during actual implement
Draw, it is actual when implementing, and kenel, quantity and the ratio of each component can be a kind of random change, and its assembly layout kenel
It is likely more complexity.
Embodiment one
See Fig. 1, according to the invention provides a kind of electronic equipment screen brightness adjusting method of image content-based, such as scheme
It is shown, it the described method comprises the following steps：
The area-of-interest of display image on S11, detection electronic equipment screen.
Wherein, above-mentioned electronic equipment is (or referred to as：Equipment) can be smart mobile phone, tablet personal computer, wearable device, electronic display
Show equipment etc., the present invention is not intended to limit the particular type of electronic equipment.
In this step, area-of-interest refers to human eye region interested, English full name Region of Interest,
Referred to as ROI.
Wherein, because the big image of profile variations easily arouses attention, it is possible thereby to select the larger image conduct of gradient
Area-of-interest.Specifically, area-of-interest can be obtained by conventional images Processing Algorithm, it is for instance possible to use sobel
Operator extracts the area-of-interest of image.
Because the factor of ROI region influence human eye is larger, the data calculated are more more representative than global data.Enter
And, without each pixel of traversing graph picture, save the algorithm time.
S12, the display effect of electronic equipment current screen brightness is determined according to the area-of-interest, and in the electronics
The display effect is performed in equipment.
In this step, it is above-mentioned obtain area-of-interest on the basis of, extract and set for regulation from area-of-interest
The parameter of standby screen backlight.
Wherein, the display effect of electronic equipment current screen brightness is determined according to the area-of-interest, and in the electricity
The specific steps of the display effect are performed in sub- equipment to be included：
S121, the brightness of the extraction area-of-interest, saturation degree, entropy；
S122, determines that the electronic equipment corresponding with the brightness, saturation degree, entropy currently shields according to default mapping function
The display effect of curtain brightness；
S123, performs the display effect on the electronic equipment.
Wherein, entropy can substantially estimate that one is by calculating the comentropy (Information Entropy) of picture
System is more ordered into, and comentropy is lower；Conversely, a system is chaotic, comentropy is higher.Comentropy, which could also say that, is
One measurement of ordering degree of uniting.
Preferably, above-mentioned parameter can be obtained by an image recognition model of training in advance.
For example, image recognition model can be trained acquisition in the following manner：
First, sample is chosen
Wherein, sample can include training sample and test sample, specifically can be used as sample from the image of various contents
This, certain quantity should be sufficiently large.
2nd, image recognition model algorithm is performed on training sample, image recognition model is generated
First, sobel operators are performed on training sample, to detect the area-of-interest (ROI) of training sample；
Then, each training sample is gone into HSL color spaces from RGB (H, S, L is expressed as aberration, saturation degree, light
Intensity), following parameter is then calculated by required ROI：
ROI saturation degree：It is indicated with SF；
ROI brightness：It is indicated with IF；
The comentropy of parametric image：It can specifically be obtained by below equation (1)
H (x)=E [I (xi)]=E [log (2,1/p (xi))]=- (i=1,2 ... n) by ∑ p (xi) log (2, p (xi))
(1)
Wherein, p (xi) represents the probability that each pixel occurs, and the pixel coverage of image is 0~255, the scope calculated
Entropy H scope should be between 0~8.
Finally, tried to achieve and above-mentioned brightness, saturation using the linear regression (Linear Regression) in statistics
The relation of the display effect of the corresponding screen intensity of degree, entropy.Because being linearly dependent on the model of its unknown parameter than non-
The model for being linearly dependent on its location parameter is easier fitting, and the statistical property of the estimation produced is also easier to determine.
For example, based on the above results, following mapped function relation can be obtained：
Int adapt_lgt=(int) (125.3092- (0.04512*ROI_S)+(0.180874*ROI_I)+
(3.6556*h))。
Wherein, if the display effect of screen intensity more or will be more suitable for user, it may be referred to existing human eye vision
System (HVS) comes corresponding with above-mentioned brightness, saturation degree, entropy progress, i.e., by above-mentioned brightness, saturation degree, entropy and human visual system
A corresponding relation is formed, and then the last screen intensity seemed on an electronic device can have preferable Consumer's Experience.
3rd, the above-mentioned image recognition model trained is performed in test sample, generation predicts the outcome
The above-mentioned image recognition model trained is inputted using the test sample being collected into, mould is predicted according to test result
The reliability of type.
Based on the above method, the brightness of screen can be adjusted in real time according to the picture material on screen, compared to existing
Simple backlight adjusting method, the shape of the invention that equipment can be allowed to be maintained at a low energy consumption in real time can be carried out according to luminous environment
State, while also having preferable Consumer's Experience.
Screen can be allowed to reach optimal brightness according to the above method, in order to allow user to have more preferably picture browsing effect
And the effect of the energy-conservation of equipment is further improved, following decision design can also be made.
In order to reach more preferably energy-saving effect, in addition it is also necessary to the appropriate reduction background light level of different images, and schemed with improving
The method of piece brightness is compensated to picture.
Specifically, the spilling in order to prevent pixel, it is ensured that lifted in the case of the pixel of image 99.9% is distortionless bright
Degree, according to experiment law, the brightness for secretly scheme to be lifted in this case is larger, and integrally partially dark picture be not suitable for being lifted it is too big
Brightness, therefore we are limited different pictures.
For example, display image screen includes dark figure, middle figure and bright figure, according to minor function come to the dark figure, middle figure and
Bright figure carries out brightness regulation limitation：
Dark figure (brightness ＜ 90) lifting brightness is no more than the 1/12 of itself mean flow rate；
The brightness of middle figure (90≤brightness≤135) lifting is no more than the 1/9-3 of itself mean flow rate；
The brightness of bright figure (brightness ＞ 135) lifting is no more than the 1/10 of itself mean flow rate；
Wherein, and provide the lifting brightness of minimum for 3 (even if very dark figure lifts 3 brightness and can brought and slightly lifted, and
Have very great help to following reduction backlight), maximum lifting brightness (primarily directed to bright figure, has been found that lifting for 12
Brightness excessively locally has slight whiting, it is necessary to limitation is made to the upper limit).
According to experiment feedback result, dark picture can reduce more bias lights and be more or less the same with artwork, but compensation
Brightness but can not be too many, more brightness can be compensated to it for bright picture but the backlight value of reduction can not be too many.
Preferably, the lifting that the following piecewise linear function of the present embodiment offer carrys out brightness value is limited, specific as follows：
Secretly figure (mean flow rate is less than 90) reducible backlight value is：36-3*lt (and being not less than 125 after reduction)；
The reducible backlight value of middle figure (90≤mean flow rate≤135) is：30-lt (and being not less than 135 after reduction)；
Bright figure (mean flow rate is more than 135), reducible backlight value was：3*lt+9 (and being not less than 145 after reduction)；
Wherein, lt represents the brightness value lifted on the basis of artwork.
It can ensure that, according to different picture features, dark figure can reduce more back ofs the body according to above-mentioned piecewise linear function
Light, the backlight of bright figure reduction is less (lt of bright figure is smaller, because easily overflowing), plus a lower limit be to each scope because
By test, it is the effect for secretly scheming also to have can't see immediately that backlight, which is less than 120, according further to formula it is seen that preventing bright
The brightness that figure declines excessively brings the influence of picture quality.
It can be seen from the technical scheme of above-mentioned offer, the present invention has advantages below：
1) using ROI partial analysis method, the calculating of substantial amounts of pixel has been skipped, the time-consuming of algorithm is reduced.
2) mapping relations of characteristics of image and human eye vision brightness are have found, human eye is obtained by regression model more quickly
The brightness most adapted to.
3) difference of picture material is directed to, the backlight difference of reduction and the brightness difference of lifting is reached, has accomplished intelligence
Processing.Picture is divided into using piecewise linearity equation by several intervals, the picture classification of different scenes can be handled.
4) in the case where ensureing that picture quality do not reduce, brightness of image is lifted, the backlight value of reduction is compensated, user's energy is allowed
Enough experience the picture very nearly the same with artwork.
Embodiment two
According to the above method, present invention also offers a kind of electronic equipment screen brightness regulation of image content-based dress
Put, see Fig. 3, electronic equipment screen brightness regulating apparatus 200 includes image detection module 210 and brightness vision-control module 220,
Image detection module 210 is used for the area-of-interest for detecting display image on electronic equipment screen；Brightness vision-control module 220
Display effect for determining electronic equipment current screen brightness according to the area-of-interest, and held on the electronic equipment
The row display effect.
Wherein, the brightness vision-control module 220 is specifically included：Feature extraction unit 221, it is emerging for extracting the sense
The brightness in interesting region, saturation degree, entropy；Display effect confirmation unit 222, for according to default mapping function determine with it is described bright
The display effect of the corresponding electronic equipment current screen brightness of degree, saturation degree, entropy；Execution unit 223 is shown, for described
The display effect is performed on electronic equipment.
The device and the technical principle of the above method that are there is provided due to present embodiment and have the technical effect that it is consistent, therefore here
Do not repeat.
In addition, according to said apparatus, it can be applied into existing electronic equipment, general, as long as the electronic equipment
With display screen.
Specifically, above-mentioned electronic equipment can include in smart mobile phone, tablet personal computer, wearable device, electronic display unit
It is any one or more of, the present invention is not restricted the particular type of electronic equipment.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (6)
1. a kind of electronic equipment screen brightness adjusting method of image content-based, it is characterised in that including：
Detect the area-of-interest of display image on electronic equipment screen；
The display effect of electronic equipment current screen brightness is determined according to the area-of-interest, and is held on the electronic equipment
The row display effect.
2. the electronic equipment screen brightness adjusting method of image content-based according to claim 1, it is characterised in that root
The display effect of electronic equipment current screen brightness is determined according to the area-of-interest, and execution is described on the electronic equipment
Display effect is specifically included：
Extract the brightness of the area-of-interest, saturation degree, entropy；
The electronic equipment current screen brightness corresponding with the brightness, saturation degree, entropy is determined according to default mapping function
Display effect；
The display effect is performed on the electronic equipment.
3. a kind of electronic equipment screen brightness regulating apparatus of image content-based, it is characterised in that including：
Image detection module, the area-of-interest for detecting display image on electronic equipment screen；
Brightness vision-control module, for determining that the display of electronic equipment current screen brightness is imitated according to the area-of-interest
Really, and on the electronic equipment display effect is performed.
4. the electronic equipment screen brightness regulating apparatus of image content-based according to claim 3, it is characterised in that institute
Brightness vision-control module is stated to specifically include：
Feature extraction unit, for extracting the brightness of the area-of-interest, saturation degree, entropy；
Display effect confirmation unit, for determining the electricity corresponding with the brightness, saturation degree, entropy according to default mapping function
The display effect of sub- equipment current screen brightness；
Execution unit is shown, for performing the display effect on the electronic equipment.
5. a kind of electronic equipment, it is characterised in that the electronics including the image content-based described in the claims 3 or 4 is set
Standby screen brightness regulating device.
6. electronic equipment according to claim 5, it is characterised in that the electronic equipment is set including following at least one
It is standby:Smart mobile phone, tablet personal computer, wearable device, electronic display unit.
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| CN201710165610.0A CN107067004A (en) | 2017-03-20 | 2017-03-20 | The adjusting method and device of a kind of electronic equipment and its screen intensity |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109933186A (en) * | 2019-01-22 | 2019-06-25 | 西北大学 | A kind of mobile web browser energy consumption optimization method adjusted based on screen intensity |
| CN111785217A (en) * | 2020-07-03 | 2020-10-16 | 深圳创维－Rgb电子有限公司 | Backlight adjusting method and device, terminal equipment and readable storage medium |
| CN116884359A (en) * | 2023-09-06 | 2023-10-13 | 深圳市明亚顺科技有限公司 | Adaptive dimming method, device, equipment and storage medium based on picture content |
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| US20150057541A1 (en) * | 2012-09-24 | 2015-02-26 | Samsung Electronics Co., Ltd. | Ultrasound apparatus and information providing method of the ultrasound apparatus |
| CN105592777A (en) * | 2013-07-08 | 2016-05-18 | 瑞思迈传感器技术有限公司 | Method and system for sleep management |
| CN105761267A (en) * | 2016-03-08 | 2016-07-13 | 重庆邮电大学 | Image processing method and device |
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| US20150057541A1 (en) * | 2012-09-24 | 2015-02-26 | Samsung Electronics Co., Ltd. | Ultrasound apparatus and information providing method of the ultrasound apparatus |
| CN105592777A (en) * | 2013-07-08 | 2016-05-18 | 瑞思迈传感器技术有限公司 | Method and system for sleep management |
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| CN109933186A (en) * | 2019-01-22 | 2019-06-25 | 西北大学 | A kind of mobile web browser energy consumption optimization method adjusted based on screen intensity |
| CN111785217A (en) * | 2020-07-03 | 2020-10-16 | 深圳创维－Rgb电子有限公司 | Backlight adjusting method and device, terminal equipment and readable storage medium |
| CN116884359A (en) * | 2023-09-06 | 2023-10-13 | 深圳市明亚顺科技有限公司 | Adaptive dimming method, device, equipment and storage medium based on picture content |
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Application publication date: 20170818 |