CN106034208A - Method and device for automatic exposure - Google Patents
Method and device for automatic exposure Download PDFInfo
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- CN106034208A CN106034208A CN201510114040.3A CN201510114040A CN106034208A CN 106034208 A CN106034208 A CN 106034208A CN 201510114040 A CN201510114040 A CN 201510114040A CN 106034208 A CN106034208 A CN 106034208A
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- brightness value
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
Abstract
The invention discloses a method and device for automatic exposure, relating to the data processing field and making image integral brightness uniform. The method for the automatic exposure comprises steps of obtaining a first brightness value of a current image in a camera aperture and a second brightness value of the current image in the camera aperture, performing calculation according to the first brightness value and the second brightness value, regulating the first brightness value according to the calculation result to make the calculation results of first brightness value and the second brightness value after regulation in a preset threshold value. The method and device of the invention are applicable to a method process of automatic exposure.
Description
Technical field
The present invention relates to data processing field, particularly relate to the method and device of a kind of automatic exposure.
Background technology
Automatic exposure is exactly camera use when shooting object specific exposure algorithm automatically select aperture size,
Time of exposure, photosensitive value, so that the image brilliance of object is normal.
But, having some algorithms in traditional automatic exposure algorithm is that the overall brightness using picture controls exposure,
Also having some algorithms is to control exposure according to picture luminance rectangular histogram, and other algorithm is to use brightness references
Value adjusts brightness and controls exposure.In the automatic exposure algorithm that these are traditional, it is the most all according to focusing frame
Interior brightness is exposed as reference brightness, therefore uses these exposure algorithm in shooting main body and background
Between luminance difference the biggest time, if the shooting main body in focusing frame is crossed bright, that focus outside frame background is the darkest,
Shooting image entirety out then can be made the brightest, overexposure phenomenon occurs, otherwise and, then there will be exposure not
The phenomenon of foot.Especially when the main body shot for face, face exposure inequality has a strong impact on picture quality.
Summary of the invention
The method and device of a kind of automatic exposure that the embodiment of the present invention provides, can improve picture quality.
A kind of method of automatic exposure, including:
Obtaining the first brightness value, described first brightness value is the present intensity value of present image in view-finder；
Obtaining the second brightness value, described second brightness value is the predetermined luminance value of present image in described view-finder；
Calculate according to described first brightness value and described second brightness value, and adjust described the according to result of calculation
One brightness value, makes the result of calculation of the first brightness value after adjustment and the second brightness value in predetermined threshold value.
A kind of device of automatic exposure, including:
First acquiring unit, for obtaining the first brightness value, described first brightness value is currently to scheme in view-finder
The present intensity value of picture；
Second acquisition unit, for obtain the second brightness value, described second brightness value be in described view-finder when
The predetermined luminance value of front image；
Adjustment unit, for calculating according to described first brightness value and described second brightness value, and according to calculating
Result adjusts described first brightness value, makes the result of calculation of the first brightness value after adjustment and the second brightness value exist
In predetermined threshold value.
Embodiments provide the method and device of a kind of automatic exposure, current by obtaining in view-finder
Second brightness value of present image in first brightness value of image and view-finder, according to the first brightness value and second
Brightness value calculates, and adjusts the first brightness value according to result of calculation, make the first brightness value after adjustment and
The result of calculation of the second brightness value is in predetermined threshold value.Compare with prior art only according to the image in focusing frame
For the method that brightness is exposed, the embodiment of the present invention is according to overall brightness of image current in view-finder
It is adjusted, differs with the image exposure degree focused outside frame thus without the image occurred in focusing frame
Excessive situation, simultaneously by adjusting the first brightness value, makes the calculating of the first brightness value and the second brightness value tie
Fruit meets the method for predetermined threshold value and realizes spectrum assignment, makes image overall brightness uniform, improves picture quality.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to required in embodiment
The accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only the one of the present invention
A little embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawing can be obtained according to these accompanying drawings.
The method flow diagram of a kind of automatic exposure that Fig. 1 provides for the embodiment of the present invention；
The method flow diagram of the another kind of automatic exposure that Fig. 2 provides for the embodiment of the present invention；
The method flow diagram of the another kind of automatic exposure that Fig. 3 provides for the embodiment of the present invention；
The method flow diagram of the another kind of automatic exposure that Fig. 4 provides for the embodiment of the present invention；
The device of a kind of automatic exposure that Fig. 5 provides for the embodiment of the present invention constitutes block diagram；
The device of the another kind of automatic exposure that Fig. 6 provides for the embodiment of the present invention constitutes block diagram；
The device of the another kind of automatic exposure that Fig. 7 provides for the embodiment of the present invention constitutes block diagram；
The device of the another kind of automatic exposure that Fig. 8 provides for the embodiment of the present invention constitutes block diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The all other embodiments obtained under property work premise, broadly fall into the scope of protection of the invention.
A kind of method embodiments providing automatic exposure, can improve picture quality, its flow process such as Fig. 1
Shown in, including:
101, the first brightness value is obtained.
Wherein, the present intensity value of present image during the first brightness value is view-finder.What deserves to be explained is, obtain
The process of present image brightness value in view-finder that takes is the RGB data of present image in view-finder to be converted to
Yuv data.In yuv data, " Y " represents brightness.Therefore, by obtaining present image in view-finder
Yuv data in " Y " value, it may be determined that the present intensity value of present image in view-finder, the i.e. first brightness
Value.
102, the second brightness value is obtained.
Wherein, the predetermined luminance value of present image during the second brightness value is view-finder.This predetermined luminance value is root
It is set according to individual subscriber hobby.It should be noted that the second brightness value is also by " Y " in yuv data
Value.The purpose arranging the second brightness value is to ensure that under being in different light radiation situation, in view-finder
Image can meet user's exposure requirement to present image.
103, calculate according to the first brightness value and the second brightness value, and adjust the first brightness value according to result of calculation,
Make the result of calculation of the first brightness value after adjustment and the second brightness value in predetermined threshold value.
Wherein, the concrete calculating process of the first brightness value and the second brightness value has been done in later-mentioned step 202 in detail
Description, do not repeat at this.
A kind of method embodiments providing automatic exposure, by obtaining present image in view-finder
Second brightness value of present image in first brightness value and view-finder, according to the first brightness value and the second brightness value
Calculate, and adjust the first brightness value according to result of calculation, make the first brightness value after adjustment and second bright
The result of calculation of angle value is in predetermined threshold value.Compare and only enter according to the brightness of image in focusing frame with prior art
For the method for row exposure, the embodiment of the present invention is to carry out according to overall brightness of image current in view-finder
Regulation, have big difference thus without the image exposure degree occurred outside the image focused in frame is with focusing frame
Situation, simultaneously by adjusting the first brightness value, makes the result of calculation of the first brightness value and the second brightness value meet
The method of predetermined threshold value realizes spectrum assignment, makes image overall brightness uniform, improves picture quality.
In another embodiment that the present invention provides, as in figure 2 it is shown, describe the method flow of step 103 in detail,
Including:
201, predetermined threshold value is set.
Wherein, predetermined threshold value is for judging the first brightness value and the result of calculation of the second brightness value, if meet
Adjust the condition of the first brightness value.The concrete numerical values recited arranging predetermined threshold value is empirical value, and the present invention is the most right
The concrete numerical value of predetermined threshold value limits.However, it is desirable to explanation, if the predetermined threshold value arranged is excessive,
Then can affect the first brightness value and the degree of approximation of the second brightness value after adjustment.If the default codomain arranged is too small,
Then can increase the number of times adjusting the first brightness value when adjusting, increase the time adjusting the first brightness value.
202, the first brightness value and the difference of the second brightness value are calculated.
Wherein, owing to the first brightness value is the brightness value of present image in view-finder, the image presented now
The image obtained when being not to be adjusted time of exposure and photosensitive value, has overexposure or owes the phenomenon exposed,
" Y " value of present image the most excessive (display effect is that image is the brightest) in view-finder the most now,
" Y " value too small (display effect is that image is the darkest) of present image in the most possible view-finder.No matter it is " Y "
Value " Y " bigger than normal still value is less than normal does not complys with the preferable lightness of user, namely the second brightness value.Cause
This, by calculating the first brightness value and the difference of the second brightness value, determine the need for adjusting the first brightness
Value and how to adjust the first brightness value.
203, when the absolute value of the first brightness value and the difference of the second brightness value is less than or equal to predetermined threshold value, no
Adjust the first brightness value.
Wherein, when the difference of the first brightness value and the second brightness value is less than or equal to predetermined threshold value, illustrate that first is bright
Angle value and the second brightness value numerically very close to, represented brightness also complies with the requirement of user.Therefore,
In such a case it is not necessary to the first brightness value is adjusted, the first brightness value is directly used to be exposed
?.
204, when the absolute value of the first brightness value and the difference of the second brightness value is more than predetermined threshold value, the is adjusted
One brightness value.
Wherein, when the absolute value of the first brightness value and the difference of the second brightness value is more than predetermined threshold value, explanation
First brightness value and the second brightness value are mutually the most far short of what is expected, the brightness showed also with phase of user
Prestige brightness differs, and now, by adjusting the first brightness value, makes the first brightness value more convergence and the second brightness
Value, thus reach customer satisfaction system exposure effect.
Concrete, when performing step 204, just like following step 2041 and step 2042, wherein, step 2041
It is the relation selecting an execution with step 2042, including:
2041, when the first brightness value is more than the second brightness value, the first brightness value is turned down.
2042, when the first brightness value is less than the second brightness value, the first brightness value is tuned up.
In another embodiment that the present invention provides, as it is shown on figure 3, describe the method stream of step 204 in detail
Journey, including:
301, judge that whether the difference of the first brightness value after adjusting and the second brightness value is more than predetermined threshold value.
Wherein, the first brightness value passes through repeatedly to adjust, gradually convergence the second brightness value.If only by once
Adjust, just make the difference of the first brightness value and the second brightness value in predetermined threshold value, then can make in view-finder when
There is significantly bright saltus step in front brightness of image, unfavorable judge adjustment with user after the first brightness value whether accord with
Close requirement.Therefore, during repeatedly adjusting, be to the first brightness value after adjusting every time again with second
Brightness value calculates, it is judged that whether the first brightness value and the difference of the second brightness value after adjustment are less than or equal to
Preset codomain.
302, when the difference of the first brightness value after adjusting and the second brightness value is more than predetermined threshold value, then continue
The first brightness value after adjusting.
In another embodiment that the present invention provides, describe the method flow adjusting the first brightness value in detail,
It is specifically divided into two aspects, including:
First aspect, by adjusting time of exposure or the light sensitivitys of terminal, adjusts the first brightness value.
Wherein it is desired to explanation, during being applied to automatic exposure due to the present invention.In automatic exposure
During, relation one to one when time of exposure and light sensitivitys.After determining time of exposure, the most permissible
Determine the light sensitivitys of correspondence.Thus, when taking pictures, by actinometer, needs when determining this shooting
The time of exposure used and light sensitivitys.What deserves to be explained is, time of exposure is the longest, then the image shot is bright
Spend the highest；Light sensitivitys is the biggest, then the brightness of image shot is the highest.Therefore, by adjusting time of exposure
Length and the size of light sensitivitys, can reach to adjust the purpose of the first brightness value.
Second aspect, the size every time adjusting the first brightness value is identical with the size of predetermined threshold value.
Wherein, if the size that single adjusts the first brightness value is excessive, then there will be present image in view-finder
Brightness saltus step；If too small, the process time of camera can be extended.Now illustrate:
First brightness value is 10；Second brightness value is 3；Predetermined threshold value is 1.In these cases, first is bright
Angle value is 7 with the absolute value of the difference of the second brightness value, more than predetermined threshold value, therefore, is adjusting the first brightness
During value, lower 1 (equal in magnitude with predetermined threshold value) every time.After adjusting the first brightness value every time, Dou Yaohe
Second brightness value calculates, if the difference of the first brightness value and the second brightness value is also greater than equal to predetermined threshold value,
Then continuing to adjust, the first brightness value goes through 9,8,7 ... 4 until the first brightness value adjusts to 3 time, now first
The difference of brightness value and the second brightness value is 0, less than or equal to presetting codomain, stops adjusting, and is exposed by adjustment
Light time or photo sensitivity are so that the brightness value of the image shot is 3.
In another embodiment that the present invention provides, as shown in Figure 4, performed before step 103, including:
401, the 3rd brightness value is obtained.
Wherein, the 3rd brightness value is facial image when present image comprises facial image in view-finder to be detected
Predetermined luminance value.By human face detection tech, can detect that in view-finder whether present image comprises face.
402, when getting three brightness values, the 3rd brightness value is used to replace the second brightness value, bright with first
Angle value calculates, and adjusts the first brightness value according to result of calculation.
Wherein, when present image comprises face in view-finder being detected, then can use the first brightness value and
Three brightness values calculate.Its computation rule is counted with the first brightness value and the second brightness value with computational methods
The rules and methods calculated are identical, do not repeat the method at this.When not detecting face, then make
Calculate with the second brightness value and the first brightness value.
A kind of method embodiments providing automatic exposure, by obtaining present image in view-finder
Second brightness value of present image in first brightness value and view-finder, according to the first brightness value and the second brightness value
Calculate, and adjust the first brightness value according to result of calculation, make the first brightness value after adjustment and second bright
The result of calculation of angle value is in predetermined threshold value.Compare and only enter according to the brightness of image in focusing frame with prior art
For the method for row exposure, the embodiment of the present invention is to carry out according to overall brightness of image current in view-finder
Regulation, have big difference thus without the image exposure degree occurred outside the image focused in frame is with focusing frame
Situation, simultaneously by adjusting the first brightness value, makes the result of calculation of the first brightness value and the second brightness value meet
The method of predetermined threshold value realizes spectrum assignment, makes image overall brightness uniform, improves picture quality.
Embodiments provide the device of a kind of automatic exposure, as it is shown in figure 5, include: first obtains list
Unit 51, second acquisition unit 52, adjustment unit 53.
First acquiring unit 51, for obtaining the first brightness value, described first brightness value is current in view-finder
The present intensity value of image.
Second acquisition unit 52, for obtaining the second brightness value, described second brightness value is in described view-finder
The predetermined luminance value of present image.
Adjustment unit 53, for calculating according to described first brightness value and described second brightness value, and according to meter
Calculate result and adjust described first brightness value, make the first brightness value after adjustment and the result of calculation of the second brightness value
In predetermined threshold value.
In the another kind of optional constituted mode of this device, as shown in Figure 6, adjustment unit 53, also include:
Subelement 531, computation subunit 532 are set.
Arranging subelement 531, be used for arranging described predetermined threshold value, described predetermined threshold value is used for judging described first
Brightness value and the result of calculation of described second brightness value, if meet the condition adjusting described first brightness value.
Computation subunit 532, calculates described first brightness value and the difference of described second brightness value.
When the absolute value of described first brightness value and the difference of described second brightness value is less than described predetermined threshold value
Time, do not adjust described first brightness value.
When the absolute value of described first brightness value and the difference of described second brightness value is more than described predetermined threshold value
Time, adjusting described first brightness value, described first brightness value of described adjustment includes:
When described first brightness value is more than described second brightness value, turn described first brightness value down.
When described first brightness value is less than described second brightness value, tune up described first brightness value.
As it is shown in fig. 7, adjustment unit 53, also include: judgment sub-unit 533.
Whether judgment sub-unit, for judging the difference of the first brightness value and described second brightness value after adjusting
More than described predetermined threshold value.
When the difference of the first brightness value after described adjustment with described second brightness value is more than described predetermined threshold value
Time, then continue the first brightness value after adjusting described adjustment.
In another embodiment that the present invention provides, as it is shown in fig. 7,
Described adjustment unit 53, is additionally operable to, by adjusting time of exposure or light sensitivitys, adjust described first brightness
Value.
The size every time adjusting described first brightness value is identical with the size of described predetermined threshold value.
As shown in Figure 8, this device also includes: the 3rd acquiring unit 54.
3rd acquiring unit 54, for obtaining the 3rd brightness value, described 3rd brightness value takes described in detecting
The predetermined luminance value of facial image when present image comprises facial image in scape frame.
When getting described three brightness value, described 3rd brightness value is used to replace described second brightness value,
Calculate with described first brightness value, and adjust described first brightness value according to result of calculation.
What deserves to be explained is, above-mentioned device as shown in Fig. 5 to Fig. 8, for realizing method as shown in Figure 1 to Figure 4
Flow process.
Embodiments provide the device of a kind of automatic exposure, obtain view-finder by the first acquiring unit
First brightness value of middle present image, second acquisition unit obtains the second brightness value of present image in view-finder,
Calculating according to the first brightness value and the second brightness value, adjustment unit adjusts the first brightness according to result of calculation
Value, makes the result of calculation of the first brightness value after adjustment and the second brightness value in predetermined threshold value.Compare with existing
For having the method that technology is only exposed according to the brightness of image in focusing frame, the embodiment of the present invention is basis
Brightness of image overall in view-finder is adjusted, thus without the focus image in frame and focusing occur
The situation that image exposure degree outside frame has big difference, simultaneously by adjusting the first brightness value, makes the first brightness
Value meets the method for predetermined threshold value with the result of calculation of the second brightness value and realizes spectrum assignment, improves figure picture element
Amount.
Each embodiment in this specification all uses the mode gone forward one by one to describe, phase homophase between each embodiment
As part see mutually, what each embodiment stressed is different from other embodiments it
Place.For apparatus embodiments, owing to it is substantially similar to embodiment of the method, so describing
Fairly simple, relevant part sees the part of embodiment of the method and illustrates.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method,
Can be by computer program and complete to instruct relevant hardware, described program can be stored in computer
In read/write memory medium, this program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method.
Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory,
Or random store-memory body (Random Access Memory, RAM) etc. ROM).
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited to
This, any those familiar with the art, in the technical scope that the invention discloses, can readily occur in
Change or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention
Should be as the criterion with scope of the claims.
Claims (10)
1. the method for an automatic exposure, it is characterised in that including:
Obtaining the first brightness value, described first brightness value is the present intensity value of present image in view-finder；
Obtaining the second brightness value, described second brightness value is the predetermined luminance value of present image in described view-finder；
Calculate according to described first brightness value and described second brightness value, and adjust described the according to result of calculation
One brightness value, makes the result of calculation of the first brightness value after adjustment and the second brightness value in predetermined threshold value.
Method the most according to claim 1, it is characterised in that described according to described first brightness value and
Described second brightness value calculates, and adjusts described first brightness value according to result of calculation, makes first after adjustment
The result of calculation of brightness value and described second brightness value in predetermined threshold value, including:
Arranging described predetermined threshold value, described predetermined threshold value is used for judging described first brightness value and described second bright
The result of calculation of angle value, if meet the condition adjusting described first brightness value；
Calculate described first brightness value and the difference of described second brightness value；
When the absolute value of described first brightness value and the difference of described second brightness value is less than described predetermined threshold value
Time, do not adjust described first brightness value；
When the absolute value of described first brightness value and the difference of described second brightness value is more than described predetermined threshold value
Time, adjusting described first brightness value, described first brightness value of described adjustment includes:
When described first brightness value is more than described second brightness value, turn described first brightness value down；
When described first brightness value is less than described second brightness value, tune up described first brightness value.
Method the most according to claim 2, it is characterised in that described when described first brightness value and institute
When the absolute value of the difference stating the second brightness value is more than described predetermined threshold value, adjust described first brightness value, bag
Include:
Judge that whether the difference with described second brightness value of the first brightness value after adjusting is more than described default threshold
Value；
When the difference of the first brightness value after described adjustment with described second brightness value is more than described predetermined threshold value
Time, then continue the first brightness value after adjusting described adjustment.
Method the most according to claim 1, it is characterised in that described first brightness value of described adjustment,
Including:
By adjusting time of exposure or light sensitivitys, adjust described first brightness value；
The size every time adjusting described first brightness value is identical with the size of described predetermined threshold value.
5. according to the method described in claim 1-4 any one, it is characterised in that described according to described first
Brightness value and described second brightness value calculate, and adjust described first brightness value according to described result of calculation, make
Before the first brightness value after adjustment and the result of calculation of the second brightness value are in predetermined threshold value, described method bag
Include:
Obtaining the 3rd brightness value, described 3rd brightness value is for detecting that in described view-finder, present image comprises people
The predetermined luminance value of facial image during face image；
When getting described three brightness value, described 3rd brightness value is used to replace described second brightness value,
Calculate with described first brightness value, and adjust described first brightness value according to result of calculation.
6. the device of an automatic exposure, it is characterised in that including:
First acquiring unit, for obtaining the first brightness value, described first brightness value is currently to scheme in view-finder
The present intensity value of picture；
Second acquisition unit, for obtain the second brightness value, described second brightness value be in described view-finder when
The predetermined luminance value of front image；
Adjustment unit, for calculating according to described first brightness value and described second brightness value, and according to calculating
Result adjusts described first brightness value, makes the result of calculation of the first brightness value after adjustment and the second brightness value exist
In predetermined threshold value.
Device the most according to claim 6, it is characterised in that described adjustment unit, also includes:
Arranging subelement, be used for arranging described predetermined threshold value, described predetermined threshold value is used for judging described first bright
Angle value and the result of calculation of described second brightness value, if meet the condition adjusting described first brightness value；
Computation subunit, calculates described first brightness value and the difference of described second brightness value；
When the absolute value of described first brightness value and the difference of described second brightness value is less than described predetermined threshold value
Time, do not adjust described first brightness value；
When the absolute value of described first brightness value and the difference of described second brightness value is more than described predetermined threshold value
Time, adjusting described first brightness value, described first brightness value of described adjustment includes:
When described first brightness value is more than described second brightness value, turn described first brightness value down；
When described first brightness value is less than described second brightness value, tune up described first brightness value.
Device the most according to claim 7, it is characterised in that described adjustment unit, also includes:
Whether judgment sub-unit, for judging the difference of the first brightness value and described second brightness value after adjusting
More than described predetermined threshold value；
When the difference of the first brightness value after described adjustment with described second brightness value is more than described predetermined threshold value
Time, then continue the first brightness value after adjusting described adjustment.
Device the most according to claim 6, it is characterised in that
Described adjustment unit, is additionally operable to, by adjusting time of exposure or light sensitivitys, adjust described first brightness value；
The size every time adjusting described first brightness value is identical with the size of described predetermined threshold value.
10. according to the device described in claim 6-9 any one, it is characterised in that including:
3rd acquiring unit, for obtaining the 3rd brightness value, described 3rd brightness value is found a view described in detecting
The predetermined luminance value of facial image when present image comprises facial image in frame；
When getting described three brightness value, described 3rd brightness value is used to replace described second brightness value,
Calculate with described first brightness value, and adjust described first brightness value according to result of calculation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510114040.3A CN106034208A (en) | 2015-03-16 | 2015-03-16 | Method and device for automatic exposure |
| PCT/CN2015/075562 WO2016145678A1 (en) | 2015-03-16 | 2015-03-31 | Automatic exposure method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510114040.3A CN106034208A (en) | 2015-03-16 | 2015-03-16 | Method and device for automatic exposure |
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| CN106034208A true CN106034208A (en) | 2016-10-19 |
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| WO (1) | WO2016145678A1 (en) |
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| CN107370957A (en) * | 2017-08-24 | 2017-11-21 | 维沃移动通信有限公司 | A kind of image processing method and mobile terminal |
| CN108989689A (en) * | 2018-09-17 | 2018-12-11 | 成都品果科技有限公司 | A kind of method and apparatus of adjust automatically exposure gain |
| CN110661983A (en) * | 2019-11-12 | 2020-01-07 | 腾讯科技（深圳）有限公司 | Image acquisition method, device, equipment and storage medium |
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| CN102342090A (en) * | 2009-03-02 | 2012-02-01 | 松下电器产业株式会社 | Image capturing device, operator monitoring device, method for measuring distance to face, and program |
| CN101873434A (en) * | 2009-04-21 | 2010-10-27 | 安国国际科技股份有限公司 | Image pick-up device and related method |
| CN103888680A (en) * | 2014-03-28 | 2014-06-25 | 中国科学技术大学 | Method for adjusting exposure time of camera |
| CN104184958A (en) * | 2014-09-17 | 2014-12-03 | 中国科学院光电技术研究所 | Automatic exposure control method and device based on FPGA and suitable for space exploration imaging |
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| CN106657994A (en) * | 2017-03-03 | 2017-05-10 | 深圳市金立通信设备有限公司 | Exposure testing method, control terminal, terminal to be tested, and exposure testing system |
| CN107370957A (en) * | 2017-08-24 | 2017-11-21 | 维沃移动通信有限公司 | A kind of image processing method and mobile terminal |
| CN108989689A (en) * | 2018-09-17 | 2018-12-11 | 成都品果科技有限公司 | A kind of method and apparatus of adjust automatically exposure gain |
| CN110661983A (en) * | 2019-11-12 | 2020-01-07 | 腾讯科技（深圳）有限公司 | Image acquisition method, device, equipment and storage medium |
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