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    • 4. 发明授权
    • Image processing device, image processing program, and imaging device computing brightness value and color phase value
    • 图像处理装置,图像处理程序和成像装置计算亮度值和色相值
    • US08665347B2
    • 2014-03-04
    • US12839621
    • 2010-07-20
    • Yu MiyawakiTsuyoshi Matsumoto
    • Yu MiyawakiTsuyoshi Matsumoto
    • H04N9/68
    • G06T7/0002G06T7/12G06T2207/10024
    • An image processing device comprises: a brilliance gradient computation unit computing a brilliance gradient within an image based on an image information; a color phase value computation unit computing a first color phase value and a second color phase value, the first color phase value representing a color phase inside a candidate region determined based on the brilliance gradient computed by the brilliance gradient computation unit, the second color phase value representing a color phase in a region surrounding the candidate region; and a region extraction unit extracting a region from the candidate region such that a difference between the first color phase value and the second color phase value is less than or equal to a predetermined threshold value.
    • 一种图像处理装置,包括:辉度梯度计算单元,基于图像信息计算图像内的亮度梯度; 彩色相位值计算单元,计算第一色相值和第二彩色相位值,所述第一色相值表示基于由辉度梯度计算单元计算出的亮度梯度确定的候选区域内的颜色相位,第二颜色相位 表示候选区域周围的区域中的颜色相位的值; 以及区域提取单元,从所述候选区域提取区域,使得所述第一色相位值和所述第二色相位值之间的差小于或等于预定阈值。