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，并用，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。-Summarizes the image processing system the basic algorithm about irregular area, including: area filling, boundary tracking, boundary mark, geometry processing, and regional segmentation and so on, and, according to the particularity of the 256 color mode, the traditional algorithm targeted improvement, to speed up the processing speed, make it more suitable for film and TV subtitles, animated cartoon characters irregular image area.