Apparatus for converting and processing input bi-level image data and
faithfully rendering tones, colors, and edges
    6.
    发明授权
    Apparatus for converting and processing input bi-level image data and faithfully rendering tones, colors, and edges 失效
    用于转换和处理输入双层图像数据并忠实地呈现色调,颜色和边缘的装置

    公开(公告)号:US5283664A

    公开(公告)日:1994-02-01

    申请号:US773728

    申请日:1991-10-09

    摘要: An image recorder for converting input bilevel image data to multilevel data, executing various kinds of image processing with the mutlilevel data, and then recording the processed multilevel data. The image recorder converts input bilevel image data to M-level data (M being equal to or greater than 2), then requantized to N-level data, and then fed to a printer capable of recording data in three or more levels. The bilevel-to-multilevel conversion is effected in matching relation to the pattern of the input bilevel data. A plurality of bilevel-to-multilevel conversion means of different kinds are provided. The bilevel-to-multilevel conversion system is changed on the basis of the kind of input bilevel data. The M-level data is subjected to edge enhancement, magnification change, and gamma correction. Color image data produced by color separation are processed color by color and then fed to a printer.

    摘要翻译: 一种用于将输入二级图像数据转换成多级数据的图像记录器,用多项式数据执行各种图像处理,然后记录经处理的多级数据。 图像记录器将输入二级图像数据转换为M级数据(M等于或大于2),然后重新计算到N级数据,然后馈送到能够以三级或更多级别记录数据的打印机。 在与输入二级数据的模式匹配的关系中实现了二级到多级转换。 提供了多种不同种类的双层到多层转换装置。 基于输入双层数据的类型,改变了双层到多层次的转换系统。 M级数据经受边缘增强,放大率变化和伽马校正。 通过颜色分色产生的彩色图像数据按颜色进行处理,然后送入打印机。