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    • 3. 发明申请
    • Image processing apparatus, image processing method, and computer program product
    • 图像处理装置,图像处理方法和计算机程序产品
    • US20110286062A1
    • 2011-11-24
    • US13067294
    • 2011-05-23
    • Akiyoshi Nakai
    • Akiyoshi Nakai
    • G03F3/08
    • H04N1/6075G06T11/001H04N1/56
    • An image processing apparatus that generates color-reduced image data containing fewer colors than the number of colors in input image data includes a hue identifying unit that identifies to which hue region of a color space a hue of each pixel in the image data belongs; an output-color correspondence determining unit that determines correspondence between the hue regions and respective output colors of the color-reduced image data; and a color-reduced image data generating unit that converts a color of each pixel in the image data to an output color corresponding to the hue region, wherein the output-color correspondence determining unit associates, as the output colors, colors that are generated by mixing mutually-different color materials that are fewer in number than the output colors, at different mixing ratios with the respective hue regions, the color materials forming a representative color that determines a range of the output colors.
    • 一种图像处理装置,其生成包含比输入图像数据中的颜色数少的颜色的减色图像数据,包括:色相识别单元,其识别图像数据中每个像素的色调的色彩区域的哪个色调区域; 输出颜色对应确定单元,其确定色彩区域与减色图像数据的各个输出颜色之间的对应关系; 以及减色图像数据生成单元,其将图像数据中的每个像素的颜色转换为与色相区域对应的输出颜色,其中,输出颜色对应确定单元将由颜色对应确定单元生成的颜色与输出颜色对应确定单元相关联, 混合与输出颜色数量少的相互不同的颜色材料,以与各个色调区域不同的混合比率,颜色材料形成确定输出颜色范围的代表性颜色。