CN104965376B - The adjusting method and system of a kind of terminal camera flash lamp - Google Patents

The adjusting method and system of a kind of terminal camera flash lamp Download PDF

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CN104965376B
CN104965376B CN201510465835.9A CN201510465835A CN104965376B CN 104965376 B CN104965376 B CN 104965376B CN 201510465835 A CN201510465835 A CN 201510465835A CN 104965376 B CN104965376 B CN 104965376B
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camera
maximum current
sensitivity
current
hard
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CN104965376A (en
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刘银华
孙剑波
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00Special procedures for taking photographs; Apparatus therefor
    • G03B15/02Illuminating scene
    • G03B15/03Combinations of cameras with lighting apparatus; Flash units
    • G03B15/05Combinations of cameras with electronic flash apparatus; Electronic flash units

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Abstract

一种终端相机闪光灯的调节方法及系统,所述方法包括如下步骤:步骤1.获取正常闪光灯拍照时的相机感光度Shigh;步骤2.根据相机感光度Shigh计算拍照时相机所需的最大电流Imax;步骤3.判断最大电流Imax是否大于终端相机支持的最大电流Ihard,最大电流Ihard为预设固定值;步骤4.若Imax大于终端相机支持的最大电流Ihard,则将拍照时电流设置为I=Ihard,重新获取相机感光度Shigh;若Imax小于或等于终端相机支持的最大电流Ihard,则执行下一步;步骤5.将最大电流Imax及相机感光度Shigh作为电流与相机感光度参数写入终端相机,完成一次闪光灯拍照。本发明根据预闪前后图像的亮度情况,调整拍照时闪光灯的电流大小,达到控制闪光灯亮度的目的,从而在打开闪光灯的情况下,在一定程度上使得图像的亮度达到一致,并且节约电量。

A method and system for adjusting a flashlight of a terminal camera, said method comprising the steps of: Step 1. Obtaining the camera sensitivity S high when taking pictures with a normal flashlight; Current I max ; Step 3. Determine whether the maximum current I max is greater than the maximum current I hard supported by the terminal camera, and the maximum current I hard is a preset fixed value; Step 4. If I max is greater than the maximum current I hard supported by the terminal camera, then Set the current to I=I hard when taking pictures, and reacquire the camera sensitivity S high ; if I max is less than or equal to the maximum current I hard supported by the terminal camera, then perform the next step; Step 5. Set the maximum current I max and the camera sensitivity to The degree S high is written into the terminal camera as the current and camera sensitivity parameters, and a flash photo is completed. According to the brightness of the image before and after the pre-flash, the present invention adjusts the current of the flashlight when taking pictures to achieve the purpose of controlling the brightness of the flashlight, so that when the flashlight is turned on, the brightness of the image is consistent to a certain extent and saves power.

Description

一种终端相机闪光灯的调节方法及系统Method and system for adjusting flashlight of terminal camera

技术领域technical field

本发明涉及终端设备拍照技术,特别是涉及一种终端相机闪光灯的调节方法及系统。The present invention relates to terminal equipment photographing technology, in particular to a terminal camera flash adjustment method and system.

背景技术Background technique

相机,是一种利用光学成像原理形成影像并使用底片记录影像的设备。很多可以记录影像设备都具备照相机的特征。医学成像设备、天文观测设备等等。照相机是用于摄影的光学器械。被摄景物反射出的光线通过照相镜头(摄景物镜)和控制曝光量的快门聚焦后,被摄景物在暗箱内的感光材料上形成潜像,经冲洗处理(即显影、定影)构成永久性的影像,这种技术称为摄影术。分为一般的照相与专业的摄像。A camera is a device that uses the principle of optical imaging to form an image and uses a film to record the image. Many devices capable of recording images have the characteristics of a camera. Medical imaging equipment, astronomical observation equipment, etc. A camera is an optical device used for photography. After the light reflected by the object to be photographed is focused by the photographic lens (objective lens) and the shutter controlling the exposure, the object to be photographed forms a latent image on the photosensitive material in the dark box, which is processed (that is, developed and fixed) to form a permanent image. images, this technique is called photography. Divided into general photography and professional video.

而现有的终端设备,例如手机、掌上电脑等普遍具备照相功能,例如目前,若手机拍照时开启闪光灯,闪光灯的在任何情况下的亮度都是一致的,这导致了以下方面的不足:However, existing terminal devices, such as mobile phones and PDAs, generally have a camera function. For example, at present, if the flashlight is turned on when the mobile phone takes a photo, the brightness of the flashlight is the same under any circumstances, which leads to the following deficiencies:

(1)不同环境亮度下,补充相同的光源,导致图像亮度不一致,同一台手机拍出来的效果各异。(1) Under different ambient brightness, the same light source is supplemented, resulting in inconsistent image brightness, and the same mobile phone has different effects.

(2)当手机离前景很近时,闪光灯打在前景上很亮,因此曝光时间很短;但是由于闪光灯无法提供充足的光源给背景,背景很暗,又曝光时间短,从而易导致前景亮,背景暗,造成视觉明暗反差大,如图1。(2) When the mobile phone is very close to the foreground, the flash light hits the foreground very brightly, so the exposure time is very short; but because the flash light cannot provide sufficient light to the background, the background is very dark, and the exposure time is short, which easily leads to bright foreground , the background is dark, resulting in a large visual contrast between light and dark, as shown in Figure 1.

(3)每次闪光灯都开到最大,造成了电量浪费,从而减少了手机的待机时间。(3) The flash light is opened to the maximum every time, which causes a waste of power, thereby reducing the standby time of the mobile phone.

发明内容Contents of the invention

本发明的目的在于克服现有技术的不足,提供一种终端相机闪光灯的调节方法及系统,能使图像的亮度达到一致,有效节约电量。The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method and system for adjusting the flashlight of a terminal camera, which can make the brightness of the image consistent and effectively save power.

为了达到上述目的,本发明采用的技术方案是:In order to achieve the above object, the technical scheme adopted in the present invention is:

一种终端相机闪光灯的调节方法,包括如下步骤:A method for adjusting a flashlight of a terminal camera, comprising the steps of:

步骤1.获取正常闪光灯拍照时的相机感光度ShighStep 1. Obtain the camera sensitivity S high when taking pictures with a normal flash;

步骤2.根据相机感光度Shigh计算拍照时相机所需的最大电流ImaxStep 2. Calculate the maximum current I max required by the camera when taking pictures according to the camera sensitivity S high ;

步骤3.判断最大电流Imax是否大于终端相机支持的最大电流Ihard,最大电流Ihard为预设固定值;Step 3. Determine whether the maximum current I max is greater than the maximum current I hard supported by the terminal camera, and the maximum current I hard is a preset fixed value;

步骤4.若Imax大于终端相机支持的最大电流Ihard,则将拍照时电流设置为I=Ihard,重新获取相机感光度Shigh;若Imax小于或等于终端相机支持的最大电流Ihard,则执行下一步;Step 4. If I max is greater than the maximum current I hard supported by the terminal camera, set the current to I=I hard when taking pictures, and reacquire the camera sensitivity S high ; if I max is less than or equal to the maximum current I hard supported by the terminal camera , then go to the next step;

步骤5.将最大电流Imax及相机感光度Shigh作为电流与相机感光度参数写入终端相机,完成一次闪光灯拍照。Step 5. Write the maximum current I max and camera sensitivity S high as current and camera sensitivity parameters into the terminal camera to complete a flash photo.

进一步地,步骤1具体包括:Further, step 1 specifically includes:

设置预闪阶段画面亮度Luma值及拍照阶段需达到的画面亮度Luma值,所述画面亮度Luma值为图像亮度Y的平均值;设置图像感光度ISO与曝光时间的乘积为相机感光度Sensitive,假设闪光灯开启前的相机感光度Sensitive为S0、预闪时相机感光度为Spre、拍照时相机感光度为ShighSet the picture brightness Luma value in the pre-flash stage and the picture brightness Luma value that needs to be achieved in the photographing stage, and the picture brightness Luma value is the average value of the image brightness Y; set the product of the image sensitivity ISO and the exposure time to be the camera sensitivity Sensitive, assuming The camera sensitivity before the flash is turned on is S 0 , the camera sensitivity is S pre during the pre-flash, and the camera sensitivity is S high when taking pictures;

S101.获取闪光灯开启前画面亮度Luma值L0及相机感光度S0,此时闪光灯处于关闭状态的电流为0;S101. Obtain the Luma value L 0 of the screen brightness and the camera sensitivity S 0 before the flash is turned on, and the current of the flash in the off state is 0 at this time;

S102.获得预闪阶段画面亮度Luma值Lpre、预闪阶段的电流值Ipre及相机感光度为SpreS102. Obtain the Luma value L pre of the image brightness in the pre-flash phase, the current value I pre in the pre-flash phase, and the camera sensitivity as S pre ;

S103.判断预闪阶段相机感光度为Spre与闪光灯开启前的相机感光度S0是否一致,一致则当前画面亮度Luma值为闪光灯预闪阶段引起画面亮度Luma值变化量为ΔL=L'pre-L0S103. Determine whether the camera sensitivity in the pre-flash stage is S pre and the camera sensitivity S 0 before the flash is turned on. If they are consistent, the current picture brightness Luma value is The amount of change in the Luma value of the screen brightness caused by the flash pre-flash stage is ΔL=L' pre -L 0 ;

S104.设置拍照阶段的电流值为Isnap、画面亮度Luma值为Lsnap,假设闪光灯亮度与电流成正比,由闪光灯强闪引起的画面亮度Luma值变化量为拍照时画面亮度Luma值为:Lhigh=ΔLhigh+L0S104. Set the current value of the photographing stage to I snap and the screen brightness Luma value to L snap . Assuming that the brightness of the flashlight is proportional to the current, the amount of change in the Luma value of the screen brightness caused by the strong flash of the flashlight is When taking pictures, the Luma value of the screen brightness is: L high = ΔL high + L 0 ;

S105.设拍照所需亮度为Luma为Ltarget,且Ltarget为定值,获取拍照时相机感光度 S105. Set the brightness required for taking pictures as Luma is L target , and L target is a fixed value, and obtain the camera sensitivity when taking pictures

进一步地,步骤2具体包括:Further, step 2 specifically includes:

S201.根据ΔL=L'pre-L0Lhigh=ΔLhigh+L0五个公式换算得到 S201. According to ΔL=L' pre -L 0 , L high =ΔL high +L 0 and The five formulas are converted to get

S202.Ipre、Lpre、S0、Spre、L0及Ltarget为固定值,则获得Isnap为关于Shigh的一阶函数;S202. I pre , L pre , S 0 , S pre , L 0 and L target are fixed values, then the obtained I snap is a first-order function about S high ;

S203.获取Shigh的最小值,设置为Smin,计算出拍照所需最大电流ImaxS203. Obtain the minimum value of S high , set it as S min , and calculate the maximum current I max required for taking pictures.

进一步地,步骤4具体包括:Further, step 4 specifically includes:

S401.若Imax大于终端相机支持的最大电流Ihard则执行步骤S402,若Ixam小于或等于终端相机支持的最大电流Ihard则执行步骤5;S401. If I max is greater than the maximum current I hard supported by the terminal camera, then perform step S402, and if I xam is less than or equal to the maximum current I hard supported by the terminal camera, then perform step 5;

S402.Imax大于终端相机支持的最大电流Ihard,判定为闪光灯离物体距离远,且环境亮度值低;S402.I max is greater than the maximum current I hard supported by the terminal camera, and it is determined that the flash is far away from the object and the ambient brightness value is low;

S403.将拍照电流设置为I=IhardS403. The photographing current is set to I=I hard ;

S404.增加相机曝光时间或图像感光度,使Shigh增大,重新计算相机感光度ShighS404. Increase camera exposure time or image sensitivity to increase S high , and recalculate camera sensitivity S high .

本发明还公开了一种终端相机闪光灯的调节系统,包括:The present invention also discloses an adjustment system for the flashlight of the terminal camera, including:

正常拍照相机感光度获取单元,用于获取正常闪光灯拍照时的相机感光度ShighThe camera sensitivity acquisition unit for normal photo taking is used to acquire the camera sensitivity S high when taking photos with a normal flash;

拍照最大电流获取单元,用于根据相机感光度Shigh计算拍照时相机所需的最大电流ImaxThe maximum current acquisition unit for taking pictures is used to calculate the maximum current I max required by the camera when taking pictures according to the camera sensitivity S high ;

判断单元,用于判断最大电流Imax是否大于终端相机支持的最大电流Ihard,最大电流Ihard为预设固定值;A judging unit, configured to judge whether the maximum current I max is greater than the maximum current I hard supported by the terminal camera, and the maximum current I hard is a preset fixed value;

拍照电流设置单元,用于若Imax大于终端相机支持的最大电流Ihard,则将拍照时电流设置为I=Ihard,重新获取相机感光度Shigh;若Imax小于或等于终端相机支持的最大电流Ihard,则执行下一步;The photographing current setting unit is used for if I max is greater than the maximum current I hard supported by the terminal camera, then the current is set to I=I hard when taking pictures, and the camera sensitivity S high is reacquired; if I max is less than or equal to the maximum current I hard supported by the terminal camera maximum current I hard , then execute the next step;

存储单元,用于将最大电流Imax及相机感光度Shigh作为电流与相机感光度参数写入终端相机,完成一次闪光灯拍照。The storage unit is used to write the maximum current I max and the camera sensitivity S high as current and camera sensitivity parameters into the terminal camera to complete a flash photo.

进一步地,正常拍照相机感光度获取单元具体包括:Further, the normal photographing camera sensitivity acquisition unit specifically includes:

设置预闪阶段画面亮度Luma值及拍照阶段需达到的画面亮度Luma值,所述画面亮度Luma值为图像亮度Y的平均值;设置图像感光度ISO与曝光时间的乘积为相机感光度Sensitive,假设闪光灯开启前的相机感光度Sensitive为S0、预闪时相机感光度为Spre、拍照时相机感光度为ShighSet the picture brightness Luma value in the pre-flash stage and the picture brightness Luma value that needs to be achieved in the photographing stage, and the picture brightness Luma value is the average value of the image brightness Y; set the product of the image sensitivity ISO and the exposure time to be the camera sensitivity Sensitive, assuming The camera sensitivity before the flash is turned on is S 0 , the camera sensitivity is S pre during the pre-flash, and the camera sensitivity is S high when taking pictures;

第一获取单元,用于获取闪光灯开启前画面亮度Luma值L0及相机感光度S0,此时闪光灯处于关闭状态的电流为0;The first acquisition unit is used to acquire the screen brightness Luma value L 0 and the camera sensitivity S 0 before the flash is turned on. At this time, the current of the flash in the off state is 0;

第二获取单元,用于获得预闪阶段画面亮度Luma值Lpre、预闪阶段的电流值Ipre及相机感光度为SpreThe second acquisition unit is used to obtain the Luma value L pre of the screen brightness in the pre-flash phase, the current value I pre in the pre-flash phase, and the camera sensitivity as S pre ;

相机感光度判断单元,用于判断预闪阶段相机感光度为Spre与闪光灯开启前的相机感光度S0是否一致,一致则当前画面亮度Luma值为闪光灯预闪阶段引起画面亮度Luma值变化量为ΔL=L'pre-L0The camera sensitivity judging unit is used to judge whether the camera sensitivity in the pre-flash stage is S pre and the camera sensitivity S 0 before the flash is turned on. If they are consistent, the current picture brightness Luma value is The amount of change in the Luma value of the screen brightness caused by the flash pre-flash stage is ΔL=L' pre -L 0 ;

设置单元,用于设置拍照阶段的电流值为Isnap、画面亮度Luma值为Lsnap,假设闪光灯亮度与电流成正比,由闪光灯强闪引起的画面亮度Luma值变化量为拍照时画面亮度Luma值为:Lhigh=ΔLhigh+L0The setting unit is used to set the current value I snap and the screen brightness Luma value L snap in the photographing phase. Assuming that the brightness of the flashlight is proportional to the current, the amount of change in the Luma value of the screen brightness caused by the strong flash of the flashlight is When taking pictures, the Luma value of the screen brightness is: L high = ΔL high + L 0 ;

相机感光度计算单元,用于设拍照所需亮度为Luma为Ltarget,且Ltarget为定值,获取拍照时相机感光度 The camera sensitivity calculation unit is used to set the brightness required for taking pictures as Luma is L target , and L target is a fixed value, and obtains the camera sensitivity when taking pictures

进一步地,拍照最大电流获取单元具体包括:Further, the photographing maximum current acquisition unit specifically includes:

第一计算单元,用于根据ΔL=L'pre-L0Lhigh=ΔLhigh+L0五个公式换算得到 The first calculation unit is used according to ΔL=L' pre -L 0 , L high =ΔL high +L 0 and The five formulas are converted to get

第二计算单元,用于Ipre、Lpre、S0、Spre、L0及Ltarget为固定值,则获得Isnap为关于Shigh的一阶函数;The second calculation unit is used for I pre , L pre , S 0 , S pre , L 0 and L target as fixed values, and then obtains I snap as a first-order function about S high ;

第三计算单元,用于获取Shigh的最小值,设置为Smin,计算出拍照所需最大电流ImaxThe third calculation unit is used to obtain the minimum value of S high , which is set as S min , and calculates the maximum current I max required for taking pictures.

进一步地,拍照电流设置单元具体包括:Further, the photographing current setting unit specifically includes:

分析单元,用于若Imax大于终端相机支持的最大电流Ihard则执行下一步,若Imax小于或等于终端相机支持的最大电流Ihard则保存数据;The analysis unit is used to execute the next step if I max is greater than the maximum current I hard supported by the terminal camera, and save the data if I max is less than or equal to the maximum current I hard supported by the terminal camera;

判定单元,用于Imax大于终端相机支持的最大电流Ihard,判定为闪光灯离物体距离远,且环境亮度值低;The judging unit is used for I max is greater than the maximum current I hard supported by the terminal camera, and it is judged that the flashlight is far away from the object and the ambient brightness value is low;

设置单元,用于将拍照电流设置为I=IhardA setting unit is used to set the photographing current to I=I hard ;

重新获取单元,用于增加相机曝光时间或图像感光度,使Shigh增大,重新计算相机感光度ShighThe re-acquisition unit is used to increase the camera exposure time or image sensitivity to increase S high and recalculate the camera sensitivity S high .

与现有技术相比,本发明的有益效果是:根据预闪前后图像的亮度情况,调整拍照时闪光灯的电流大小,达到控制闪光灯亮度的目的,从而在打开闪光灯的情况下,在一定程度上使得图像的亮度达到一致,并且节约电量。Compared with the prior art, the beneficial effect of the present invention is: according to the brightness of the image before and after the pre-flash, the current of the flashlight is adjusted to achieve the purpose of controlling the brightness of the flashlight, so that when the flashlight is turned on, to a certain extent Make the brightness of the image consistent and save power.

附图说明Description of drawings

图1为本发明的调节方法流程图。Fig. 1 is a flow chart of the adjustment method of the present invention.

具体实施方式detailed description

下面结合实施例参照附图进行详细说明,以便对本发明的技术特征及优点进行更深入的诠释。The following will describe in detail with reference to the accompanying drawings in conjunction with the embodiments, so as to further explain the technical features and advantages of the present invention.

本发明的方法流程图如图1所示,一种终端相机闪光灯的调节方法,包括如下步骤:The method flow chart of the present invention is shown in Figure 1, a kind of adjustment method of terminal camera flashlight, comprises the following steps:

本发明的步骤1为:获取正常闪光灯拍照时的相机感光度ShighStep 1 of the present invention is: obtaining the camera sensitivity S high when taking pictures with a normal flash light.

作为本发明的较佳实施例,本发明所述的步骤1具体包括:As a preferred embodiment of the present invention, step 1 described in the present invention specifically includes:

设置预闪阶段画面亮度Luma值及拍照阶段需达到的画面亮度Luma值,所述画面亮度Luma值为图像亮度Y的平均值;设置图像感光度ISO与曝光时间的乘积为相机感光度Sensitive,假设闪光灯开启前的相机感光度Sensitive为S0、预闪时相机感光度为Spre、拍照时相机感光度为ShighSet the picture brightness Luma value in the pre-flash stage and the picture brightness Luma value that needs to be achieved in the photographing stage, and the picture brightness Luma value is the average value of the image brightness Y; set the product of the image sensitivity ISO and the exposure time to be the camera sensitivity Sensitive, assuming The camera sensitivity before the flash is turned on is S 0 , the camera sensitivity is S pre during the pre-flash, and the camera sensitivity is S high when taking pictures;

S101.获取闪光灯开启前画面亮度Luma值L0及相机感光度S0,此时闪光灯处于关闭状态的电流为0;L0及S0的值不是固定的,可以实时从系统中获取)开启闪光灯前画面亮度Luma值通过获得该画面亮度Y平均值获得,感光度通过获得当前的曝光时间和感光度ISO乘积获得;S101. Get the screen brightness Luma value L 0 and the camera sensitivity S 0 before the flash is turned on. At this time, the current of the flash in the off state is 0; the values of L 0 and S 0 are not fixed, and can be obtained from the system in real time) Turn on the flash The Luma value of the front screen brightness is obtained by obtaining the average value of the screen brightness Y, and the sensitivity is obtained by obtaining the product of the current exposure time and the sensitivity ISO;

S102.获得预闪阶段画面亮度Luma值Lpre、预闪阶段的电流值Ipre及相机感光度为Spre;Lpre及Spre的值不是固定的,可以实时从系统中获取,预闪时画面亮度Luma值通过获得该画面亮度Y平均值获得,相机感光度Spre通过获得当前的曝光时间和感光度ISO乘积获得,而预闪阶段的电流值是固定的,由系统预先设定;S102. Obtain the Luma value L pre of the screen brightness in the pre-flash phase, the current value I pre in the pre-flash phase, and the camera sensitivity as S pre ; the values of L pre and S pre are not fixed and can be obtained from the system in real time. The Luma value of the screen brightness is obtained by obtaining the average value of the screen brightness Y, and the camera sensitivity S pre is obtained by obtaining the product of the current exposure time and the sensitivity ISO, and the current value of the pre-flash stage is fixed and preset by the system;

S103.判断预闪阶段相机感光度为Spre与闪光灯开启前的相机感光度S0是否一致,一致则当前画面亮度Luma值为闪光灯预闪阶段引起画面亮度Luma值变化量为ΔL=L'pre-L0S103. Determine whether the camera sensitivity in the pre-flash stage is S pre and the camera sensitivity S 0 before the flash is turned on. If they are consistent, the current picture brightness Luma value is The amount of change in the Luma value of the screen brightness caused by the flash pre-flash stage is ΔL=L' pre -L 0 ;

S104.设置拍照阶段的电流值为Isnap、画面亮度Luma值为Lsnap,(Isnap及Lsnap的值,这两个值中的画面亮度Luma值Lsnap是认为设定的,而Isnap是要计算的值,步骤S104为一个推测过程,推理各个值的计算设定)假设闪光灯亮度与电流成正比,由闪光灯强闪引起的画面亮度Luma值变化量为拍照时画面亮度Luma值为:Lhigh=ΔLhigh+L0S104. Set the current value of the photographing stage as I snap , the screen brightness Luma value as L snap , (the values of I snap and L snap , the screen brightness Luma value L snap in these two values is considered to be set, and I snap is the value to be calculated, and step S104 is a guessing process, inferring the calculation setting of each value) Assuming that the brightness of the flashlight is proportional to the current, the amount of change in Luma value of the screen brightness caused by the strong flash of the flashlight is When taking pictures, the Luma value of the screen brightness is: L high = ΔL high + L 0 ;

S105.设拍照所需亮度为Luma为Ltarget,且Ltarget为定值,获取拍照时相机感光度 S105. Set the brightness required for taking pictures as Luma is L target , and L target is a fixed value, and obtain the camera sensitivity when taking pictures

本发明的步骤2为:根据相机感光度Shigh计算拍照时相机所需的最大电流ImaxStep 2 of the present invention is: calculating the maximum current I max required by the camera when taking pictures according to the camera sensitivity S high .

作为本发明的较佳实施例,本发明所述的步骤2具体包括:As a preferred embodiment of the present invention, step 2 described in the present invention specifically includes:

S201.根据ΔL=L'pre-L0Lhigh=ΔLhigh+L0五个公式换算得到 S201. According to ΔL=L' pre -L 0 , L high =ΔL high +L 0 and The five formulas are converted to get

S202.Ipre、Lpre、S0、Spre、L0及Ltarget为固定值,则获得Isnap为关于Shigh的一阶函数;S202. I pre , L pre , S 0 , S pre , L 0 and L target are fixed values, then the obtained I snap is a first-order function about S high ;

S203.获取Shigh的最小值,设置为Smin,计算出拍照所需最大电流ImaxS203. Obtain the minimum value of S high , set it as S min , and calculate the maximum current I max required for taking pictures.

本发明的步骤3为:判断最大电流Imax是否大于终端相机支持的最大电流Ihard,最大电流Ihard为预设固定值。Step 3 of the present invention is: judging whether the maximum current I max is greater than the maximum current I hard supported by the terminal camera, and the maximum current I hard is a preset fixed value.

本发明的步骤4为:若Imax大于终端相机支持的最大电流Ihard,则将拍照时电流设置为I=Ihard,重新获取相机感光度Shigh;若Imax小于或等于终端相机支持的最大电流Ihard,则执行步骤5。Step 4 of the present invention is: if I max is greater than the maximum current I hard supported by the terminal camera, then set the current to I=I hard when taking pictures, and reacquire the camera sensitivity S high ; if I max is less than or equal to the maximum current I hard supported by the terminal camera If the maximum current I hard , go to step 5.

作为本发明的较佳实施例,本发明所述的步骤4具体包括:As a preferred embodiment of the present invention, step 4 of the present invention specifically includes:

S401.若Imax大于终端相机支持的最大电流Ihard则执行步骤S402,若Ixam小于或等于终端相机支持的最大电流Ihard则执行步骤5;S401. If I max is greater than the maximum current I hard supported by the terminal camera, then perform step S402, and if I xam is less than or equal to the maximum current I hard supported by the terminal camera, then perform step 5;

S402.Imax大于终端相机支持的最大电流Ihard,判定为闪光灯离物体距离远,且环境亮度值低;S402.I max is greater than the maximum current I hard supported by the terminal camera, and it is determined that the flash is far away from the object and the ambient brightness value is low;

S403.将拍照电流设置为I=IhardS403. The photographing current is set to I=I hard ;

S404.增加相机曝光时间或图像感光度,使Shigh增大,重新计算相机感光度ShighS404. Increase camera exposure time or image sensitivity to increase S high , and recalculate camera sensitivity S high .

本发明的步骤4为:将最大电流Imax及相机感光度Shigh作为电流与相机感光度参数写入终端相机,完成一次闪光灯拍照。Step 4 of the present invention is: write the maximum current I max and the camera sensitivity S high as current and camera sensitivity parameters into the terminal camera, and complete a flash photography.

本发明的具体实施例的流程如下:The flow process of the specific embodiment of the present invention is as follows:

一般,预闪阶段的闪光灯亮度较弱且亮度大小固定,即预闪阶段提供给闪光灯的电流是固定的,因此可以根据预闪阶段画面的Luma值(也即是图像亮度Y的平均值),及拍照阶段要达到的Luma值,来推断拍照阶段闪光灯亮度值,也即拍照阶段的电流值,从而达到控制闪光灯亮度的目的。具体步骤如下:Generally, the brightness of the flash lamp in the pre-flash stage is weak and the brightness is fixed, that is, the current provided to the flash lamp in the pre-flash stage is fixed, so according to the Luma value of the picture in the pre-flash stage (that is, the average value of the image brightness Y), And the Luma value to be achieved in the photographing stage to infer the brightness value of the flash light in the photographing stage, that is, the current value in the photographing stage, so as to achieve the purpose of controlling the brightness of the flash lamp. Specific steps are as follows:

图像感光值ISO与曝光时间T的乘积称为相机感光度Sensitive,假设拍照前的Sensitive为S0,预闪时为Spre,拍照时为Shigh。首先是正常闪光灯拍照时计算Shigh的过程。The product of the image sensitivity value ISO and the exposure time T is called the camera sensitivity Sensitive, assuming that the Sensitive before taking a photo is S 0 , it is S pre during pre-flash, and it is S high when taking a photo. The first is the process of calculating S high when taking pictures with a normal flash.

(1)获取拍照前画面亮度Luma=L0,此时闪关灯为关闭状态的电流为0;(1) Obtain the brightness Luma=L 0 of the picture before taking pictures, and at this time, the current of the flash light in the off state is 0;

(2)然后获得预闪阶段、画面Luma值Lpre,的电流值Ipre(2) Then obtain the current value I pre of the pre-flash stage and the screen Luma value L pre ;

(3)如果预闪阶段与闪光灯开启前的相机感光度一致,则当前画面亮度为由闪光灯预闪引起画面亮度Luma变化量ΔL=L'pre-L0(3) If the pre-flash stage is consistent with the camera sensitivity before the flash is turned on, the current screen brightness is Luma variation of screen brightness caused by flash pre-flash ΔL=L' pre -L 0 ;

(4)若拍照时的电流值为Isnap、画面亮度Luma值为Lsnap,假设闪光灯亮度与电流成正比,拍照时相机感光度与拍照明相同,那么由闪光灯强闪引起的画面亮度变化为从而获得拍照时画面亮度为:Lhigh=ΔLhigh+L0(4) If the current value when taking pictures is I snap and the screen brightness Luma is L snap , assuming that the brightness of the flash is proportional to the current, and the camera sensitivity is the same as that of the camera when taking pictures, then the change in screen brightness caused by the strong flash of the flash is Thus, the brightness of the picture when taking pictures is obtained: L high = ΔL high + L 0 ;

(5)设拍照所需亮度为Luma Target,设置为Ltarget (5) Set the brightness required for taking pictures as Luma Target, set it as L target ,

(6)以上是闪光灯拍照计算Shigh的过程,根据上述公式,换算出公式右边除了Shigh,其它都是固定参数,或者是拍照过程中测出的定值,从而得出Isnap是关于Shigh的一阶函数;(6) The above is the process of calculating S high when taking pictures with a flash. According to the above formula, the conversion is Except for S high on the right side of the formula, the others are fixed parameters, or fixed values measured during the photographing process, so that I snap is a first-order function of S high ;

(7)首先Shigh取最小值Smin,计算出拍照所需最大电流Imax(7) First, S high takes the minimum value S min , and calculates the maximum current I max required for taking pictures;

(8)如果Imax大于硬件支持的最大电流Ihard,表示在当前相机的感光度下,闪光灯最大电流不足以拍出足够明亮的照片(物体距离远,环境亮度低),此时拍照电流取I=Ihard,然后重新计算Shigh,使Shigh增大,即增加相机的曝光时间或ISO;(8) If I max is greater than the maximum current I hard supported by the hardware, it means that under the current camera sensitivity, the maximum current of the flash is not enough to take a bright enough photo (the object is far away and the ambient brightness is low). At this time, the camera current is taken as I=I hard , then recalculate S high to increase S high , that is, increase the exposure time or ISO of the camera;

(9)如果Imax小于硬件支持的最大电流Ihard,表示相机感光度Smin下,要拍出亮度为Ltarget照片,闪光灯只需Imax大小的电流,(距离越近,环境亮度越度,Imax越小);(9) If I max is less than the maximum current I hard supported by the hardware, it means that under the camera sensitivity S min , to take a photo with a brightness of L target , the flash only needs a current of I max (the closer the distance, the higher the ambient brightness , the smaller I max );

(10)根据上述计算出的Imax以及Shigh,将电流与相机感光度参数写入闪光灯硬件与相机模块,完成一次闪光灯拍照。(10) According to the above calculated I max and S high , write the current and camera sensitivity parameters into the flash hardware and the camera module, and complete a flash photography.

本发明在打开闪光灯的情况下,根据预闪前后图像亮度变化,自动选择拍照时闪光灯的电流,不需要每次将闪光灯电流开启到最大,从而在打闪情况下达到省电的目的。同时,在硬件电流足够亮度图像的情况下,可直接使用当前感光度进行曝光,无需调整曝光值,从而节省了拍照时间。In the case of turning on the flash, the present invention automatically selects the current of the flash when taking pictures according to the brightness change of the image before and after the pre-flash, and does not need to turn on the current of the flash to the maximum each time, thereby achieving the purpose of power saving in the case of flashing. At the same time, when the hardware current is sufficient to brighten the image, the current sensitivity can be directly used for exposure without adjusting the exposure value, thus saving time for taking pictures.

本发明还公开了一种终端相机闪光灯的调节系统,包括:The present invention also discloses an adjustment system for the flashlight of the terminal camera, including:

正常拍照相机感光度获取单元,用于获取正常闪光灯拍照时的相机感光度ShighThe camera sensitivity acquisition unit for normal photo taking is used to acquire the camera sensitivity S high when taking photos with a normal flash;

拍照最大电流获取单元,用于根据相机感光度Shigh计算拍照时相机所需的最大电流ImaxThe maximum current acquisition unit for taking pictures is used to calculate the maximum current I max required by the camera when taking pictures according to the camera sensitivity S high ;

判断单元,用于判断最大电流Imax是否大于终端相机支持的最大电流Ihard,最大电流Ihard为预设固定值;A judging unit, configured to judge whether the maximum current I max is greater than the maximum current I hard supported by the terminal camera, and the maximum current I hard is a preset fixed value;

拍照电流设置单元,用于若Imax大于终端相机支持的最大电流Ihard,则将拍照时电流设置为I=Ihard,重新获取相机感光度Shigh;若Imax小于或等于终端相机支持的最大电流Ihard,则执行下一步;The photographing current setting unit is used for if I max is greater than the maximum current I hard supported by the terminal camera, then the current is set to I=I hard when taking pictures, and the camera sensitivity S high is reacquired; if I max is less than or equal to the maximum current I hard supported by the terminal camera maximum current I hard , then execute the next step;

存储单元,用于将最大电流Imax及相机感光度Shigh作为电流与相机感光度参数写入终端相机,完成一次闪光灯拍照。The storage unit is used to write the maximum current I max and the camera sensitivity S high as current and camera sensitivity parameters into the terminal camera to complete a flash photo.

进一步地,正常拍照相机感光度获取单元具体包括:Further, the normal photographing camera sensitivity acquisition unit specifically includes:

设置预闪阶段画面亮度Luma值及拍照阶段需达到的画面亮度Luma值,所述画面亮度Luma值为图像亮度Y的平均值;设置图像感光度ISO与曝光时间的乘积为相机感光度Sensitive,假设闪光灯开启前的相机感光度Sensitive为S0、预闪时相机感光度为Spre、拍照时相机感光度为ShighSet the picture brightness Luma value in the pre-flash stage and the picture brightness Luma value that needs to be achieved in the photographing stage, and the picture brightness Luma value is the average value of the image brightness Y; set the product of the image sensitivity ISO and the exposure time to be the camera sensitivity Sensitive, assuming The camera sensitivity before the flash is turned on is S 0 , the camera sensitivity is S pre during the pre-flash, and the camera sensitivity is S high when taking pictures;

第一获取单元,用于获取闪光灯开启前画面亮度Luma值L0及相机感光度S0,此时闪光灯处于关闭状态的电流为0;The first acquisition unit is used to acquire the screen brightness Luma value L 0 and the camera sensitivity S 0 before the flash is turned on. At this time, the current of the flash in the off state is 0;

第二获取单元,用于获得预闪阶段画面亮度Luma值Lpre、预闪阶段的电流值Ipre及相机感光度为SpreThe second acquisition unit is used to obtain the Luma value L pre of the screen brightness in the pre-flash phase, the current value I pre in the pre-flash phase, and the camera sensitivity as S pre ;

相机感光度判断单元,用于判断预闪阶段相机感光度为Spre与闪光灯开启前的相机感光度S0是否一致,一致则当前画面亮度Luma值为闪光灯预闪阶段引起画面亮度Luma值变化量为ΔL=L'pre-L0The camera sensitivity judging unit is used to judge whether the camera sensitivity in the pre-flash stage is S pre and the camera sensitivity S 0 before the flash is turned on. If they are consistent, the current picture brightness Luma value is The amount of change in the Luma value of the screen brightness caused by the flash pre-flash stage is ΔL=L' pre -L 0 ;

设置单元,用于设置拍照阶段的电流值为Isnap、画面亮度Luma值为Lsnap,假设闪光灯亮度与电流成正比,由闪光灯强闪引起的画面亮度Luma值变化量为拍照时画面亮度Luma值为:Lhigh=ΔLhigh+L0The setting unit is used to set the current value I snap and the screen brightness Luma value L snap in the photographing phase. Assuming that the brightness of the flashlight is proportional to the current, the amount of change in the Luma value of the screen brightness caused by the strong flash of the flashlight is When taking pictures, the Luma value of the screen brightness is: L high = ΔL high + L 0 ;

相机感光度计算单元,用于设拍照所需亮度为Luma为Ltarget,且Ltarget为定值,获取拍照时相机感光度 The camera sensitivity calculation unit is used to set the brightness required for taking pictures as Luma is L target , and L target is a fixed value, and obtains the camera sensitivity when taking pictures

进一步地,拍照最大电流获取单元具体包括:Further, the photographing maximum current acquisition unit specifically includes:

第一计算单元,用于根据ΔL=L'pre-L0Lhigh=ΔLhigh+L0五个公式换算得到 The first calculation unit is used according to ΔL=L' pre -L 0 , L high =ΔL high +L 0 and The five formulas are converted to get

第二计算单元,用于Ipre、Lpre、S0、Spre、L0及Ltarget为固定值,则获得Isnap为关于Shigh的一阶函数;The second calculation unit is used for I pre , L pre , S 0 , S pre , L 0 and L target as fixed values, and then obtains I snap as a first-order function about S high ;

第三计算单元,用于获取Shigh的最小值,设置为Smin,计算出拍照所需最大电流ImaxThe third calculation unit is used to obtain the minimum value of S high , which is set as S min , and calculates the maximum current I max required for taking pictures.

进一步地,拍照电流设置单元具体包括:Further, the photographing current setting unit specifically includes:

分析单元,用于若Imax大于终端相机支持的最大电流Ihard则执行下一步,若Imax小于或等于终端相机支持的最大电流Ihard则保存数据;The analysis unit is used to execute the next step if I max is greater than the maximum current I hard supported by the terminal camera, and save the data if I max is less than or equal to the maximum current I hard supported by the terminal camera;

判定单元,用于Imax大于终端相机支持的最大电流Ihard,判定为闪光灯离物体距离远,且环境亮度值低;The judging unit is used for I max is greater than the maximum current I hard supported by the terminal camera, and it is judged that the flashlight is far away from the object and the ambient brightness value is low;

设置单元,用于将拍照电流设置为I=IhardA setting unit is used to set the photographing current to I=I hard ;

重新获取单元,用于增加相机曝光时间或图像感光度,使Shigh增大,重新计算相机感光度ShighThe re-acquisition unit is used to increase the camera exposure time or image sensitivity to increase S high and recalculate the camera sensitivity S high .

通过以上实施例中的技术方案对本发明进行清楚、完整的描述,显然所描述的实施例为本发明一部分的实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The present invention is clearly and completely described through the technical solutions in the above embodiments, and it is obvious that the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Claims (6)

1. a kind of adjusting method of terminal camera flash lamp, comprises the following steps:
Step 1. obtains camera sensitivity S when normal flash lamp is taken pictureshigh
Step 2. is according to camera sensitivity ShighCalculate the maximum current I needed for camera when taking picturesmax
Step 3. judges maximum current ImaxWhether maximum current I that terminal camera support is more thanhard, maximum current IhardIt is default Fixed value;
If step 4. ImaxThe maximum current I supported more than terminal camerahard, then electric current is set to I=I when will take pictureshard, again Obtain camera sensitivity Shigh;If ImaxThe maximum current I supported less than or equal to terminal camerahard, then next step is performed;
Step 5. is by maximum current ImaxAnd camera sensitivity ShighIt is complete as electric current and camera sensitivity parameter read-in terminal camera Taken pictures into a flash lamp;
Step 1 is specifically included:
The picture brightness Luma values that preflashing stage picture brightness Luma values and the stage of taking pictures need to reach, the picture brightness are set Luma values are brightness of image Y average value;It is camera sensitivity to set image sensitive degree ISO and the product of time for exposure Sensitive, it is assumed that the camera sensitivity Sensitive before flash lamp is opened is S0, preflashing when camera sensitivity be Spre, clap According to when camera sensitivity be Shigh
S101. picture brightness Luma values L before flash lamp is opened is obtained0And camera sensitivity S0, now flash lamp be closed Electric current be 0;
S102. preflashing stage picture brightness Luma values L is obtainedpre, the preflashing stage current value IpreAnd camera sensitivity is Spre
S103. judge preflashing stage camera sensitivity for SpreCamera sensitivity S before being opened with flash lamp0It is whether consistent, unanimously Then current picture brightness Luma values areThe pre flashing of flash lamp stage causes picture brightness Luma value changes amount to be Δ L=L'pre-L0
S104. the current value for setting the stage of taking pictures is Isnap, picture brightness Luma values be Lsnap, it is assumed that brightness of flash lamp and electric current It is directly proportional, dodging caused picture brightness Luma value changes amounts by force by flash lamp isPicture is bright when taking pictures Spending Luma values is:Lhigh=Δ Lhigh+L0
S105. it is L as Luma to set brightness needed for taking picturestarget, and LtargetFor definite value, camera sensitivity when acquisition is taken pictures
2. the adjusting method of terminal camera flash lamp according to claim 1, it is characterised in that step 2 is specifically included:
S201. basisΔ L=L'pre-L0Lhigh=Δ Lhigh+L0AndFive formula scales are obtained
S202.Ipre、Lpre、S0、Spre、L0And LtargetFor fixed value, then I is obtainedsnapFor on ShighFunction of first order;
S203. S is obtainedhighMinimum value, be set to Smin, calculate maximum current I needed for taking picturesmax
3. the adjusting method of terminal camera flash lamp according to claim 2, it is characterised in that step 4 is specifically included:
If S401. ImaxThe maximum current I supported more than terminal camerahardStep S402 is then performed, if IxamLess than or equal to terminal The maximum current I that camera is supportedhardThen perform step 5;
S402.ImaxThe maximum current I supported more than terminal camerahard, it is determined as flash lamp from far object distance, and ambient brightness Value is low;
S403. the electric current that will take pictures is set to I=Ihard
S404. increase camera exposure time or image sensitive degree, make ShighIncrease, recalculates camera sensitivity Shigh
4. a kind of regulating system of terminal camera flash lamp, it is characterised in that including:
Normal photographing camera sensitivity acquiring unit, for obtaining camera sensitivity S when normal flash lamp is taken pictureshigh
Take pictures maximum current acquiring unit, for according to camera sensitivity ShighCalculate the maximum current needed for camera when taking pictures Imax
Judging unit, for judging maximum current ImaxWhether maximum current I that terminal camera support is more thanhard, maximum current IhardFor predetermined fixed value;
Take pictures current setting unit, if for ImaxThe maximum current I supported more than terminal camerahard, then electric current is set when will take pictures It is set to I=Ihard, reacquire camera sensitivity Shigh;If ImaxThe maximum current I supported less than or equal to terminal camerahard, Then perform next step;
Memory cell, for by maximum current ImaxAnd camera sensitivity ShighIt is used as electric current and camera sensitivity parameter read-in terminal Camera, completes a flash lamp and takes pictures;
Normal photographing camera sensitivity acquiring unit is specifically included:
The picture brightness Luma values that preflashing stage picture brightness Luma values and the stage of taking pictures need to reach, the picture brightness are set Luma values are brightness of image Y average value;It is camera sensitivity to set image sensitive degree ISO and the product of time for exposure Sensitive, it is assumed that the camera sensitivity Sensitive before flash lamp is opened is S0, preflashing when camera sensitivity be Spre, clap According to when camera sensitivity be Shigh
First acquisition unit, for obtaining picture brightness Luma values L before flash lamp is opened0And camera sensitivity S0, now flash lamp The electric current being closed is 0;
Second acquisition unit, for obtaining preflashing stage picture brightness Luma values Lpre, the preflashing stage current value IpreAnd camera Sensitivity is Spre
Camera sensitivity judging unit, for judging preflashing stage camera sensitivity for SpreCamera sense before being opened with flash lamp Luminosity S0Whether consistent, unanimously then current picture brightness Luma values areThe pre flashing of flash lamp stage causes picture Brightness Luma value changes amount is Δ L=L'pre-L0
Setting unit, the current value for setting the stage of taking pictures is Isnap, picture brightness Luma values be Lsnap, it is assumed that flash lamp is bright Degree is directly proportional to electric current, dodges caused picture brightness Luma value changes amounts by force by flash lamp and isTake pictures When picture brightness Luma values be:Lhigh=Δ Lhigh+L0
Camera sensitivity computing unit, is L as Luma for setting required brightness of taking picturestarget, and LtargetFor definite value, acquisition is taken pictures Shi Xiangji sensitivity
5. the regulating system of terminal camera flash lamp according to claim 4, it is characterised in that maximum current of taking pictures is obtained Unit is specifically included:
First computing unit, for basisΔ L=L'pre-L0Lhigh=Δ Lhigh+L0AndFive formula scales are obtained
Second computing unit, for Ipre、Lpre、S0、Spre、L0And LtargetFor fixed value, then I is obtainedsnapFor on ShighOne Rank function;
3rd computing unit, for obtaining ShighMinimum value, be set to Smin, calculate maximum current I needed for taking picturesmax
6. the regulating system of terminal camera flash lamp according to claim 5, it is characterised in that current setting unit of taking pictures Specifically include:
Analytic unit, if for ImaxThe maximum current I supported more than terminal camerahardNext step is then performed, if ImaxIt is less than or waits The maximum current I supported in terminal camerahardThen preserve data;
Identifying unit, for ImaxThe maximum current I supported more than terminal camerahard, it is determined as flash lamp from far object distance, and Ambient brightness value is low;
Setting unit, for that will take pictures, electric current is set to I=Ihard
Unit is reacquired, for increasing camera exposure time or image sensitive degree, makes ShighIncrease, recalculates camera photosensitive Spend Shigh
CN201510465835.9A 2015-07-30 2015-07-30 The adjusting method and system of a kind of terminal camera flash lamp Expired - Fee Related CN104965376B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105955442A (en) * 2016-04-21 2016-09-21 青岛海信移动通信技术股份有限公司 Method and device for processing low battery of user terminal
CN107181920B (en) * 2017-05-25 2024-03-08 上海传英信息技术有限公司 Mobile terminal and method for switching flash lamp to take pictures
JP7258589B2 (en) 2019-02-18 2023-04-17 キヤノン株式会社 Lighting device and its control method, imaging device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101820177A (en) * 2008-12-25 2010-09-01 株式会社尼康 Charger for electronic device, electronic device, and charging method
CN102081278A (en) * 2010-11-19 2011-06-01 华为终端有限公司 Flash control method and device
CN103491250A (en) * 2013-09-22 2014-01-01 惠州Tcl移动通信有限公司 Mobile terminal and flashlight module drive current setting method thereof
CN103561210A (en) * 2013-10-24 2014-02-05 惠州Tcl移动通信有限公司 Method and mobile terminal for photographing according to background light

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4603836B2 (en) * 2004-08-31 2010-12-22 キヤノン株式会社 Imaging apparatus, control method therefor, program, and recording medium
TWI454138B (en) * 2011-05-18 2014-09-21 Altek Corp Method for adjusting brightness of image

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101820177A (en) * 2008-12-25 2010-09-01 株式会社尼康 Charger for electronic device, electronic device, and charging method
CN102081278A (en) * 2010-11-19 2011-06-01 华为终端有限公司 Flash control method and device
CN103491250A (en) * 2013-09-22 2014-01-01 惠州Tcl移动通信有限公司 Mobile terminal and flashlight module drive current setting method thereof
CN103561210A (en) * 2013-10-24 2014-02-05 惠州Tcl移动通信有限公司 Method and mobile terminal for photographing according to background light

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