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    • 7. 发明授权
    • Image data processing method and apparatus, storage medium product, and program product
    • 图像数据处理方法和装置,存储介质产品和程序产品
    • US07750921B2
    • 2010-07-06
    • US11372015
    • 2006-03-10
    • Yuji AkiyamaMakoto TorigoeManabu YamazoeRyosuke IguchiTakashi Fujita
    • Yuji AkiyamaMakoto TorigoeManabu YamazoeRyosuke IguchiTakashi Fujita
    • G09G5/02G09G5/00
    • H04N1/6005H04N1/6058
    • When printing image data obtained by an input device, the present invention is intended to effectively utilize the color reproduction area of the printer. An image data processing method of the present invention comprises the steps of scale-down shifting a first color space point outside a maximum color reproduction area of an output unit to a second color space point within the maximum color reproduction area of the output unit; computing an amount of shift by which the first color space point is shifted to the second color space point; converting the second color space point to a third color space point within a color reproduction area smaller than the maximum color reproduction area of the output unit; and outputting an image to the output unit using image data obtained by scale-up shifting the third color space point to a fourth color space point within the maximum color reproduction area of the output unit based on the computed shift amount.
    • 当打印由输入装置获得的图像数据时,本发明旨在有效地利用打印机的色彩再现区域。 本发明的图像数据处理方法包括以下步骤:将输出单元的最大色彩再现区域之外的第一色彩空间点向下移位到输出单元的最大色彩再现区域内的第二色彩空间点; 计算第一颜色空间点移动到第二颜色空间点的偏移量; 将所述第二颜色空间点转换为比所述输出单元的最大颜色再现区域小的颜色再现区域内的第三颜色空间点; 并且使用通过基于所计算的移位量将所述第三颜色空间点向所述输出单元的最大颜色再现区域内的第四颜色空间点进行放大而将所获得的图像数据输出到所述输出单元。