Apparatus and method of performing dithering in a simplex in color space
    61.
    发明授权
    Apparatus and method of performing dithering in a simplex in color space 失效
    在彩色空间中以单形形式进行抖动的装置和方法

    公开(公告)号:US06304333B1

    公开(公告)日:2001-10-16

    申请号:US09136558

    申请日:1998-08-19

    IPC分类号: B41B1308

    CPC分类号: H04N1/52 H04N1/54

    摘要: A pixel color in an image can be represented by a dot color in a dot pattern as follows. A subset of a limited set of display colors is selected. The subset has N display colors that can render a solid color patch of the pixel color. The colors of the subset correspond to vertices of a simplex in the color space. The simplex has (N−1) dimensions. A point operation is then performed to select one of the vertices of the simplex and thereby select the dot color of the subset color corresponding to the selected vertex. Consequently, a solid patch of the pixel color can be rendered by a dot pattern having no more than N different colors. The dot pattern can be displayed by an imaging device such as an inkjet printer, which has a limited set of display colors.

    摘要翻译: 图像中的像素颜色可以由点阵图案中的点颜色表示如下。 选择一组有限的显示颜色的子集。 该子集具有N个显示颜色,可以渲染像素颜色的纯色块。 子集的颜色对应于颜色空间中单纯形的顶点。 单形具有(N-1)维度。 然后执行点操作以选择单形的一个顶点,从而选择与所选顶点对应的子集颜色的点颜色。 因此,可以通过具有不多于N种不同颜色的点图案来呈现像素颜色的固体斑块。 点图案可以由具有有限的显示颜色的诸如喷墨打印机的成像装置显示。