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    • 4. 发明授权
    • Method and device for image taking brightness control and computer readable storage medium
    • 用于拍摄亮度控制和计算机可读存储介质的方法和装置
    • US09591235B2
    • 2017-03-07
    • US14728046
    • 2015-06-02
    • HISENSE MOBILE COMMUNICATIONS TECHNOLOGY CO., LTD.
    • Bing LiChangsheng ZhouSanfeng YanBiao Zhou
    • H04N5/235H04N9/73H04N5/243G03B7/093
    • H04N5/243G03B7/093H04N5/2351H04N5/2353
    • Embodiments of the present disclosure provide a method for controlling the brightness of a shot image by controlling an exposure parameter used when the image is taken on the basis of the distribution condition of detail features comprised in each brightness class area of an image frame in a preview image frame. The method includes the operations of acquiring a preview image frame, and determining the brightness level n of each pixel in the preview image frame; dividing the preview image frame into M class areas according to the determined brightness level n of each pixel; determining an exposure adjustment level required when the preview image frame is taken according to the distribution condition of detail features comprised in each class area in the preview image frame; and adjusting a pre-acquired exposure parameter according to the determined exposure adjustment level, and taking an image according to the adjusted exposure parameter.
    • 本公开的实施例提供了一种用于通过在预览中基于图像帧的每个亮度等级区域中包含的细节特征的分布条件来控制拍摄图像时使用的曝光参数来控制拍摄图像的亮度的方法 图像帧。 该方法包括获取预览图像帧并确定预览图像帧中每个像素的亮度级别n的操作; 根据确定的每个像素的亮度等级n将预览图像帧划分为M个类别区域; 根据预览图像帧中的每个类别区域中包含的细节特征的分布条件来确定当预览图像帧被采取时所需的曝光调整等级; 以及根据所确定的曝光调整水平调整预先获取的曝光参数,以及根据所调整的曝光参数拍摄图像。