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    • 3. 发明授权
    • Method of non-overlapping additive color printing
    • 非重叠加色彩印的方法
    • US5671340A
    • 1997-09-23
    • US565467
    • 1995-11-30
    • Edward N. ChapmanEdward M. Housel
    • Edward N. ChapmanEdward M. Housel
    • H04N1/54G06F15/00G03F3/08H04N1/46H04N5/14
    • H04N1/54
    • A multicolor printing method employing a color printer capable of printing non-overlapping red, green, blue and black colorants, includes the steps of: providing a digital color image having n-bit/color pixels; dividing the digital image into a plurality of pixel blocks; identifying pure red, green, blue, black and white pixels in each block and assigning such pixels to be printed with the corresponding colorant or white (no colorant); calculating percent red, green, blue, black and white for remaining pixels in each block; using the calculated percentages, assigning remaining pixels in each block to be printed with pure colorant or white according to a predetermined filling procedure; and printing the image using the assigned colorants.
    • 使用能够打印不重叠的红色,绿色,蓝色和黑色着色剂的彩色打印机的多色打印方法包括以下步骤:提供具有n位/彩色像素的数字彩色图像; 将数字图像分割成多个像素块; 识别每个块中的纯红色,绿色,蓝色,黑色和白色像素,并分配要用相应着色剂或白色(无着色剂)打印的像素; 计算每个块中剩余像素的红,绿,蓝,黑,白百分比; 使用所计算的百分比,根据预定的填充程序,在每个待印刷的块中分配剩余像素以纯色或白色; 并使用指定的着色剂打印图像。