灰度图象的二值显示研究

Research for Two-Level Rendition of Gray Level Images

在计算机图象处理中,来自自然界的灰度图象往往不得不在计算机系统中进行二值显示或打印,这已成为该领域中一个重要的研究课题。本文分析了当前最广泛使用的、也是最有效的两种灰度图象的二值显示方法并提出了相应的改进方法。改进后的方法无论在图象显示的清晰度方面还是在处理速度方面都有所改善。

In computer image-processing, two-level rendition of gray level pictures isan important field and should be researched. In this paper, two efficient methods fortwo-level rendition of gray level pictures are analysed and presented based on this two im-proved methods. They are improved in both gray level resolution and execution speed.