256色模式下图形图像处理系统中对不规则区域的处理

PROCESSION OF IRREGULAR REGION IN GRAPH IMAGE PROCESSING SYSTEM UNDER 256-COLOR MODE

概述了图形图像处理系统中关于不规则区域的基本算法，包括：区域填充，边界跟踪，边界标志，几何处理，区域分割等等．并且，根据２５６色模式的特殊性，对传统的算法做了有针对性的改进，加快了处理速度，使其更适合于电影电视字幕、动画卡通人物等不规则图形图像区域．同时还给出了改进算法的程序设计的技巧．

Algorithms about irregular region procession in graph image processing system under 256-color mode are discussed. Aiming at the peculiarity of 256-color mode, improvements that basing upon the traditional algorithms including region filling,border following, edge flag,geometrical processing and region dividing are presented.Some basic skills on programming are also available.