Method and apparatus for image coding
    11.
    发明授权
    Method and apparatus for image coding 失效
    图像编码方法和装置

    公开(公告)号:US06980693B2

    公开(公告)日:2005-12-27

    申请号:US10046827

    申请日:2002-01-17

    申请人: Hitoshi Horie

    发明人: Hitoshi Horie

    摘要: An image coding method that compresses an image read through an optical system. An image separation section carries out image area decisions in tile (macro block) units to separate the image into photographic image tiles and character image tiles. A layer separation section performs layer separation pixel by pixel to separate each pixel into pixels belonging to a background and pixels belonging to a foreground. Approximation processors alleviate an increase of entropy, due to layer separation through approximation processing, and carry out JPEG-like processing on photographic images.

    摘要翻译: 一种压缩通过光学系统读取的图像的图像编码方法。 图像分离部分在图像(宏块)单元中执行图像区域决定以将图像分离成摄影图像瓦片和角色图像瓦片。 层分离部逐像素地进行层分离,将各像素分割为属于背景的像素和属于前景的像素。 近似处理器由于通过近似处理的层分离而减轻了熵的增加,并且对照相图像进行JPEG样处理。