Color image forming apparatus using inks of plural densities
    10.
    发明授权
    Color image forming apparatus using inks of plural densities 失效
    使用多种密度的油墨的彩色图像形成装置

    公开(公告)号:US06130686A

    公开(公告)日:2000-10-10

    申请号:US974509

    申请日:1997-11-19

    摘要: A color image forming apparatus includes an image signal input portion which supplies three image signals C, M and Y associated with cyan, magenta and yellow; an image signal conversion processing portion which converts the image signals C, M and Y into six image signals associated with thick C and thin C, thick M and thin M, and thick Y and thin Y, respectively, by using a thick/thin sorting table; and a color masking processing portion which performs color masking process, and outputs converted six image signals associated with thick C to thin Y. The converted six image signals undergo a black generation process, a UCR process and a black printing process, and a binarization processing thereafter. This makes it possible to produce color images of high quality with high reproducibility even if the hues of N color materials, which belong to the same color family and have different densities, such as thin cyan and thick cyan, differ from each other to some extent.

    摘要翻译: 彩色图像形成装置包括图像信号输入部分,其提供与青色,品红色和黄色相关联的三个图像信号C,M和Y; 图像信号转换处理部分,通过使用厚/薄分类将图像信号C,M和Y分别转换为与厚C和薄C,厚M和薄M相关联的六个图像信号,以及厚Y和薄Y 表; 以及执行彩色掩蔽处理的彩色掩蔽处理部分,并将与厚C相关联的转换的六个图像信号输出到薄Y。经转换的六个图像信号经历黑色生成处理,UCR处理和黑色打印处理以及二值化处理 之后 这使得即使属于相同颜色系列并且具有不同密度的不同密度的N色材料的色调(例如青色青色和浓青色)在某种程度上彼此不同,也可以以高再现性产生高质量的彩色图像 。