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    • 7. 发明授权
    • Method for color correction for multi-color printing plate pictures
    • 多色印版图片颜色校正方法
    • US4656505A
    • 1987-04-07
    • US684719
    • 1984-12-21
    • Mitsuhiko YamadaHitomi AtojiKatsuaki Kashiwabara
    • Mitsuhiko YamadaHitomi AtojiKatsuaki Kashiwabara
    • G03F3/08H04N1/60H04N1/387H04N1/46
    • H04N1/6022
    • A method for color correction in the process for reproducing a picture in which color separation picture signals obtained by photoelectrically scanning an original picture are converted into picture signals which correspond to four printing color inks including a black ink therein to produce respective reproduction pictures for plate making corresponding to each of the color inks. A picture signal which corresponds to a black ink is produced according to gray color components obtained from B, G and R signals of the original picture, and according to chromatic color components obtained by subtracting neutral color components from said B, G and R signals. Color separation picture signals corresponding to other color inks, and deficiency in reproduction density of the black ink to be used in a black print is corrected by said other three color inks.
    • 一种用于再现图像的处理中的色彩校正方法,其中通过对原始图像进行光电扫描而获得的色分离图像信号被转换为对应于包括黑色墨水的四种印刷颜色墨水的图像信号,以产生用于制版的各种再现图像 对应于每种彩色油墨。 根据从原始图像的B,G和R信号获得的灰色成分,根据从所述B,G和R信号中减去中性色成分而得到的彩色成分,产生与黑色油墨对应的图像信号。 与其他彩色油墨相对应的色彩分离图像信号和黑色印刷中使用的黑色墨水的再现密度不足由其他三色油墨进行校正。
    • 8. 发明授权
    • Tint laying device for use in a picture reproducing machine
    • 用于图像再现机的着色装置
    • US4503457A
    • 1985-03-05
    • US248896
    • 1981-03-30
    • Kunio IkutaHitomi Atoji
    • Kunio IkutaHitomi Atoji
    • H04N1/60G03F3/00G03F3/08G03F3/10G03F5/00H04N1/405H04N1/46H04N1/54
    • H04N1/46H04N1/54
    • A tint laying device for use in a picture reproducing machine, wherein a pickup head scans an original picture to pick up a picture signal and sends it to a color discriminator which discriminates a color in hue of the picture signal to output a discrimination signal to a halftone dot area rate controller, wherein the controller outputs a signal corresponding to a halftone dot area rate predetermined of a halftone dot to be recorded, per each color, to an exposure amount controller which varies the brightness corresponding to the halftone dot area rate depending on the signal output from the controller, and wherein an exposure head scans a recording film and records a reproduction picture thereon according to the halftone dot area rate in synchronization with the pickup head. This device is capable of performing an accurate and quick operation without any skill.
    • 一种用于图像再现机器中的色彩铺设装置,其中拾取头扫描原始图像以拾取图像信号,并将其发送到鉴别图像信号的色调中的颜色的颜色鉴别器,以将辨别信号输出到 半色调点面积率控制器,其中控制器将每个颜色的预定要记录的半色调点的半色调点面积率的信号输出到曝光量控制器,该曝光量控制器根据根据 从控制器输出的信号,并且其中,曝光头扫描记录膜,并根据与拾取头同步的半色调点面积率在其上记录再现图像。 该设备无需任何技巧就能够进行精确而快速的操作。