Error diffusion halftoning method for dark ink and light ink channels, based on a measure of solvent quantity that should be ejected for each pixel, and apparatus that performs the halftoning method
    1.
    发明授权
    Error diffusion halftoning method for dark ink and light ink channels, based on a measure of solvent quantity that should be ejected for each pixel, and apparatus that performs the halftoning method 有权
    基于对每个像素喷射的溶剂量的测量值,以及执行半色调方法的装置,用于深色墨水和浅色墨水通道的误差扩散半色调方法

    公开(公告)号:US08824013B2

    公开(公告)日:2014-09-02

    申请号:US12676337

    申请日:2007-09-03

    IPC分类号: H04N1/405 H04N1/52 B41J2/205

    CPC分类号: H04N1/52

    摘要: An image processing method suitable for a printer unit, includes an error diffusion halftoning process arranged for quantizing and diffusing each pixel of an image including a set of subtractive primary colors (C′, M′, Y′), in an image including a quantized printer image including a set of ink drops (DC, DM, DY, Dc, Dm) of respective ink channels to be printed. The method comprises the step of determining, for each pixel, an input variable value (S) representing a measure of solvent quantity that should be ejected by the printer unit for each pixel, the input variable value being computed on the basis of the value of a corresponding pixel of the image including the set of subtractive primary colors (C′, M′, Y′), and of inputting the determined input variable value (S) in the error diffusion halftoning process together with the values of the corresponding pixel. The invention further relates to the apparatus embodying the method.

    摘要翻译: 一种适用于打印机单元的图像处理方法,包括误差扩散半色调处理,该误差扩散半色调处理被布置为在包括量化的图像的图像中对包括一组减色原色(C',M',Y')的图像的每个像素进行量化和扩散 打印机图像包括要打印的各个墨水通道的一组墨滴(DC,DM,DY,Dc,Dm)。 该方法包括以下步骤:对于每个像素,确定表示由打印机单元为每个像素喷射的溶剂量的测量值的输入变量值(S),该​​输入变量值基于 包括减法原色(C',M',Y')组合的图像的对应像素,以及在误差扩散半色调处理中输入确定的输入变量值(S)以及相应像素的值。 本发明还涉及体现该方法的装置。