IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM
    2.
    发明申请
    IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM 审中-公开
    图像处理设备,图像处理方法和程序

    公开(公告)号:US20140320705A1

    公开(公告)日:2014-10-30

    申请号:US14330605

    申请日:2014-07-14

    CPC classification number: H04N9/646 H04N5/235 H04N9/045

    Abstract: Provided are an apparatus and method for executing sensitivity difference correction processing of an image signal, which is generated by a single plate-type image sensor through a color filter. The sensitivity difference correction is executed for Gr and Gb signals included the image signal, for example, an RGB signal, which is generated by the single plate-type image sensor through the color filter. A pixel value of a color filter unit which has the same color as a correction target pixel and is present in surroundings of the correction target pixel is acquired. An additional value is calculated by adding a difference between weighted mean pixel values “a” and “b” of two kinds of pixel groups “A” and “B” classified according to positions of pixels to the pixel value of the correction target pixel in which the weighted mean values correspond to distances of the pixel groups from the correction target pixel. A mean value of the pixel value of the correction target pixel and the additional value is calculated as a corrected pixel value of the correction target pixel.

    Abstract translation: 提供了一种用于通过彩色滤光器由单个平板型图像传感器生成的图像信号的灵敏度差异校正处理的装置和方法。 对包括图像信号的Gr和Gb信号执行灵敏度差异校正,例如,通过滤色器由单板型图像传感器生成的RGB信号。 获取具有与校正对象像素相同的颜色并存在于校正对象像素的周围的滤色器单元的像素值。 通过将根据像素的位置分类的两种像素组“A”和“B”的加权平均像素值“a”和“b”之间的差加到校正对象像素的像素值中来计算附加值 加权平均值对应于像素组与校正目标像素的距离。 校正对象像素的像素值和附加值的平均值被计算为校正对象像素的校正像素值。

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