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    • 28. 发明授权
    • Color reduction processing apparatus, printer control device, color reduction method, and printer control method
    • 减色处理装置,打印机控制装置,减色方法和打印机控制方法
    • US07474446B2
    • 2009-01-06
    • US11000475
    • 2004-11-30
    • Yukiharu HoriuchiMichael Mannion
    • Yukiharu HoriuchiMichael Mannion
    • G03F3/08
    • H04N1/6005H04N1/56H04N1/6075
    • A color reduction processing apparatus and method reduce an original image containing many colors to a printable image containing few colors according to human color sensation. A conversion processing unit converts the pixel data for each pixel in an RGB color image (original image) to HLS data. A color reduction processor then generates print image data (the reduced-color image) reduced to a first color, second color, and a non-printing color by calculating the hue H, lightness L, and saturation S values of the HLS data based on specific parameters. These parameters can be set from an operating screen presented on a display. The original image and reduced-color image are presented on the display for verification by the user.
    • 减色处理装置和方法根据人的颜色感将减少包含许多颜色的原始图像到包含少量颜色的可打印图像。 转换处理单元将RGB彩色图像(原始图像)中的每个像素的像素数据转换为HLS数据。 然后,通过计算基于HLS数据的色调H,亮度L和饱和度S值,减色处理器生成缩小为第一颜色,第二颜色和非打印色的打印图像数据(缩小颜色图像) 具体参数。 这些参数可以从显示器上显示的操作画面进行设置。 原始图像和简化图像显示在显示屏上,供用户验证。