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    • 6. 发明授权
    • Method and apparatus for correcting video signals in color printing
simulation
    • 用于在彩色打印模拟中校正视频信号的方法和装置
    • US4454536A
    • 1984-06-12
    • US365643
    • 1982-04-05
    • Kisaburo ShimuraTetsuji UtsudaHironobu SudaKoji Kobayashi
    • Kisaburo ShimuraTetsuji UtsudaHironobu SudaKoji Kobayashi
    • G03F3/08H04N1/60
    • H04N1/6011
    • A method and an apparatus for correcting video signals are provided for printing simulation with a color monitor. Excellent mixed-color simulation can be performed in a printing process processing with a relatively high U.C.R.%. Mixed-color signals of secondary colors, a tertiary color, a quaternary color, black x primary colors, and black x secondary colors are detected from the signals (Y), (M), (C) and (K) for yellow Y, magenta M, cyan C and black K. The mixed-color signals are subjected to overlap compensation to provide overlap-compensated mixed-color signals. The signals (Y), (M), (C) and (K) are corrected using the overlap-compensated mixed-color signals so as to reduce color value of the mixed-colors in small portions. Printing simulation with a color monitor is facilitated. A correction/conversion method and an apparatus therefor are also provided which have a function of mixed-color correction and a function of converting the signals (Y), (M), (C) and (K) into signals (B), (G) and (R) for the color monitor.
    • 提供了一种用于校正视频信号的方法和装置,用于利用彩色监视器进行打印模拟。 可以在相对较高的U.C.R.%的打印处理中进行优异的混色模拟。 从黄色Y的信号(Y),(M),(C)和(K)中检测出副色,三色,四色,黑x原色和黑x二色的混色信号, 品红色M,青色C和黑色K.混合色信号进行重叠补偿以提供重叠补偿的混合色信号。 使用重叠补偿混合色信号来校正信号(Y),(M),(C)和(K),以便减小混合颜色的小部分的颜色值。 便于使用彩色显示器进行打印模拟。 还提供了一种具有混色校正功能和将信号(Y),(M),(C)和(K)转换为信号(B),(B)的功能的校正/转换方法及其装置, G)和(R)。