摘要
半色调技术是一种将具有多灰度等级的图像转换成二值图像的方法，它利用人类视觉系统的特点来重构一幅灰度图像，主要应用于图像的硬拷贝上。本文提出了一种半色调处理的算法，它结合了误差分散技术及半色调模对应方法来生成半色调图像。在文章的最后我们给出了一个算法应用的例子。
igital halftoning is a technique for converting an image with multiple levels of grey into a bilevel (bitmap) image typically in preparation for printing in paper and film. It employs characters ofthe human visual systems to reconstruct a new image from original grey image. This paper rendersan algorithms which combines error diffusion technique and different halftone patterns to generate ahalftone image. Results obtained by using a laser printer is presented.
关键词
半色调图像
灰度图像
二值图像
计算机
halftone image
continuous tone image
halftone pattern
error diffusion
