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    • 3. 发明申请
    • IMAGE FORMING APPARATUS AND COLOR CONVERTING METHOD THEREOF
    • 图像形成装置及其颜色转换方法
    • US20080297817A1
    • 2008-12-04
    • US11972905
    • 2008-01-11
    • Jin-kyung HongJae-min ShinIn-ho ParkWoo-ri Choi
    • Jin-kyung HongJae-min ShinIn-ho ParkWoo-ri Choi
    • H04N1/60
    • H04N1/6058
    • An image forming apparatus including a scanning unit to scan an image and to output corresponding digital color coordinates; a determining unit to determine a local color gamut including the digital color coordinates, based on a reference matrix computed from a standard color gamut, which includes the local color gamut, and the plurality of digital color coordinates; a matrix selecting unit to select a color conversion matrix that corresponds to the determined local color gamut; and a computing unit to compute LAB color coordinates based on the selected color conversion matrix and the digital color coordinates. A method of color conversion using the image forming apparatus is also provided.
    • 一种图像形成装置,包括:扫描单元,扫描图像并输出相应的数字色坐标; 确定单元,用于基于从包括所述局部色域的所述标准色域计算的参考矩阵和所述多个数字色坐标来确定包括所述数字色坐标的局部色域; 矩阵选择单元,用于选择与所确定的本地色域相对应的颜色转换矩阵; 以及计算单元,用于基于所选择的颜色转换矩阵和数字颜色坐标来计算LAB颜色坐标。 还提供了使用图像形成装置进行颜色转换的方法。