CN104601808A - Method for automatically adjusting screen luminance by detecting environment light through mobile phone camera - Google Patents
Method for automatically adjusting screen luminance by detecting environment light through mobile phone camera Download PDFInfo
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- CN104601808A CN104601808A CN201410850192.5A CN201410850192A CN104601808A CN 104601808 A CN104601808 A CN 104601808A CN 201410850192 A CN201410850192 A CN 201410850192A CN 104601808 A CN104601808 A CN 104601808A
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Abstract
The invention provides a method for automatically adjusting screen luminance by detecting environment light through mobile phone camera, the method comprises the following steps: obtaining the index value generated by the camera, which detects the strong and weak state of the environment light, using the index value, transmitting the index value adopted by the camera under different environments into the inner core, judging the index value in the backlight adjusting function, and setting suitable backlight luminance according to different index value. The method for automatically adjusting screen luminance of mobile phone by detecting strong and weak state of environment light through mobile phone camera can be realized. The convenience for using the mobile phone in the (indoor and outdoor) environment being different in luminance is offered for the user, the cost of the mobile phone is reduced and the structure design is simpler.
Description
Technical field
This method, based on high-pass platform, regulates mobile phone backlight brightness automatically by the power of mobile phone camera ambient light.
Background technology
Automatically regulate backlight function to be detected surround lighting by optical sensor additional on cell phone mainboard at present, regulate mobile phone backlight brightness according to the power of varying environment light.
Existing methodical shortcoming is:
Mobile phone will realize automatically regulating the function of backlight to need additionally to increase optical sensor, increases cost, makes handset structure more complicated.
Summary of the invention
Needing additionally to increase device to solve current phone brightness adjusting method, high, the baroque technical problem of cost, the invention provides a kind of method being carried out automatic adjusting screen brightness by mobile phone camera ambient light.
Technical solution of the present invention is as follows:
Carried out a method for automatic adjusting screen brightness by mobile phone camera ambient light, its special character is:
The method before application, index value in the camera exposure meter first corresponding to varying environment brightness, formulate the bright dark degree of a set of difference and index value illuminometer one to one, then carry out following steps:
1] the index value that camera obtains current environment is opened on backstage;
2] change current environment, repeat step 1, index value corresponding under obtaining varying environment;
3] import the camera index value obtained under varying environment into kernel, in backlight adjustment function, index value is judged, obtain the backlight brightness values corresponding to current index value according to the illuminometer generated, thus suitable backlight illumination is set to mobile phone.
Based on above basic scheme, the present invention also makes following optimization further:
Step 1 of the present invention in the specific implementation, adds timer in camera kernel-driven, and backstage is opened a camera and obtained current environment index value at regular intervals, realizes the index value under mobile phone automatic acquisition current environment; Timer is opening camera while, call backlight adjustment function.
By as described below for the method that index value imports kernel into:
Create a sys Archive sit to be used for accessing current index value, while timer opens camera at regular intervals, read current index value from index node;
Compared with prior art, advantage is in the present invention:
1, the present invention can reach the function of automatic adjusting screen backlight illumination, for user (indoor, outdoor etc.) under the environment of different illumination intensity uses mobile phone to provide easily, and reduces mobile phone cost, makes structural design simpler.
2, the present invention is without the need to increasing any hardware device, can be realized by software.
Accompanying drawing explanation
Fig. 1 is the flow chart of the inventive method.
Embodiment
Mobile phone camera can detect surround lighting in previews, the exposure row suitable according to varying environment configuration camera and gain parameter are to reach preview best results, this a series of parameter combinations generated according to varying environment just constitutes the exposure meter of webcam driver, and each the group parameter in exposure meter correspond to again specific index (exposure meter sequential value) value.
Generate on the basis of exposure meter at camera, we are used to index value, import the index value that camera under varying environment uses into kernel, in backlight adjustment function, index value is judged, and suitable backlight illumination is set according to different index values.
The present invention before embody rule, index value in the camera exposure meter first corresponding to varying environment brightness, formulate the bright dark degree of a set of difference and index value illuminometer one to one, then carry out following steps:
Obtain index value: in camera kernel-driven, add timer, every 6 seconds backstages are opened a camera and are obtained current environment index value.
Import index value into kernel: kernel directly cannot read camera index value, create a sys Archive sit, timer read current index value from sys Archive sit, thus kernel gets the index of current environment while within every 6 seconds, opening camera.
Suitable backlight illumination is set: call a backlight adjustment function while within every 6 seconds, timer triggers, and the judgement increased in kernel backlight adjustment function index value, if the brightness value of the index value obtained correspondence in illuminometer is identical with current phone brightness value, then function directly returns and does not process; If difference, upgrade backlight illumination.
Claims (4)
1. carried out a method for automatic adjusting screen brightness by mobile phone camera ambient light, it is characterized in that:
The method before application, index value in the camera exposure meter first corresponding to varying environment brightness, formulate the bright dark degree of a set of difference and index value illuminometer one to one, then carry out following steps:
1] the index value that camera obtains current environment is opened on backstage;
2] change current environment, repeat step 1], index value corresponding under obtaining varying environment;
3] import the camera index value obtained under varying environment into kernel, in backlight adjustment function, index value is judged, obtain the backlight brightness values corresponding to current index value according to the illuminometer generated, thus suitable backlight illumination is set to mobile phone.
2. the method being carried out automatic adjusting screen brightness by mobile phone camera ambient light according to claim 1, be is characterized in that:
Step 1 of the present invention] in the specific implementation, in camera kernel-driven, add timer, backstage is opened a camera and is obtained current environment index value at regular intervals, realizes the index value under mobile phone automatic acquisition current environment.
3. the method being carried out automatic adjusting screen brightness by mobile phone camera ambient light according to claim 1, be is characterized in that:
By as described below for the method that index value imports kernel into:
Create a sys Archive sit to be used for accessing current index value, while timer opens camera at regular intervals, read current index value from index node.
4. the method being carried out automatic adjusting screen brightness by mobile phone camera ambient light according to claim 1 or 2 or 3, be is characterized in that:
Described timer is opening camera while, call backlight adjustment function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410850192.5A CN104601808A (en) | 2014-12-30 | 2014-12-30 | Method for automatically adjusting screen luminance by detecting environment light through mobile phone camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410850192.5A CN104601808A (en) | 2014-12-30 | 2014-12-30 | Method for automatically adjusting screen luminance by detecting environment light through mobile phone camera |
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| CN104601808A true CN104601808A (en) | 2015-05-06 |
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| CN201410850192.5A Pending CN104601808A (en) | 2014-12-30 | 2014-12-30 | Method for automatically adjusting screen luminance by detecting environment light through mobile phone camera |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851097A (en) * | 2017-01-20 | 2017-06-13 | 深圳铂睿智恒科技有限公司 | A kind of terminal device and its depth of field control method |
| CN107786743A (en) * | 2017-10-27 | 2018-03-09 | 北京小米移动软件有限公司 | Prevent the method and device of terminal false touch |
| CN110855827A (en) * | 2019-09-27 | 2020-02-28 | 珠海格力电器股份有限公司 | Brightness adjusting method and device, terminal and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1896807A (en) * | 2005-07-11 | 2007-01-17 | 佛山市顺德区顺达电脑厂有限公司 | Method for adjusting negative-light resource brightness automatically |
| CN101079238A (en) * | 2006-05-22 | 2007-11-28 | 明基电通股份有限公司 | Hand-held electronic device for automatically regulating backlight brightness and backlight brightness regulation method |
| CN101945179A (en) * | 2010-09-26 | 2011-01-12 | 中兴通讯股份有限公司 | Method and device for automatically adjusting backlight brightness of mobile terminal and mobile terminal |
| CN102457599A (en) * | 2010-10-29 | 2012-05-16 | 上海三旗通信科技股份有限公司 | Method for detecting light of current environment by mobile phone camera |
| CN103377621A (en) * | 2012-04-18 | 2013-10-30 | 浩鑫股份有限公司 | Backlight adjusting system and backlight adjusting method |
-
2014
- 2014-12-30 CN CN201410850192.5A patent/CN104601808A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1896807A (en) * | 2005-07-11 | 2007-01-17 | 佛山市顺德区顺达电脑厂有限公司 | Method for adjusting negative-light resource brightness automatically |
| CN101079238A (en) * | 2006-05-22 | 2007-11-28 | 明基电通股份有限公司 | Hand-held electronic device for automatically regulating backlight brightness and backlight brightness regulation method |
| CN101945179A (en) * | 2010-09-26 | 2011-01-12 | 中兴通讯股份有限公司 | Method and device for automatically adjusting backlight brightness of mobile terminal and mobile terminal |
| CN102457599A (en) * | 2010-10-29 | 2012-05-16 | 上海三旗通信科技股份有限公司 | Method for detecting light of current environment by mobile phone camera |
| CN103377621A (en) * | 2012-04-18 | 2013-10-30 | 浩鑫股份有限公司 | Backlight adjusting system and backlight adjusting method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106851097A (en) * | 2017-01-20 | 2017-06-13 | 深圳铂睿智恒科技有限公司 | A kind of terminal device and its depth of field control method |
| CN106851097B (en) * | 2017-01-20 | 2019-07-16 | 深圳铂睿智恒科技有限公司 | A kind of terminal device and its depth of field control method |
| CN107786743A (en) * | 2017-10-27 | 2018-03-09 | 北京小米移动软件有限公司 | Prevent the method and device of terminal false touch |
| US10750007B2 (en) | 2017-10-27 | 2020-08-18 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and device for preventing terminal from being inadvertently touched |
| CN110855827A (en) * | 2019-09-27 | 2020-02-28 | 珠海格力电器股份有限公司 | Brightness adjusting method and device, terminal and storage medium |
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Application publication date: 20150506 |