【摘要】 计算机图形图象处理中，半调（ｈａｌｆｔｏｎｅ）技术是增加图形图象色彩的有效方法。本文介绍了一种实用的搜索算法，同时适用于灰度和彩色处理，易于用软件实现，可以极大地提高计算机图形系统表达色彩的能力。更多还原

【Abstract】 In the computer graphics and image processing.the half tone technology is a very important method to increace the number of colors of graphics and image. This paper introduces a search algorithm which fits to the processing of the gray and color. It can greatly enchance the ability of computer graphics systems to show the gray and color.更多还原