摘要
误差扩散算法最早是由Floyd-Steinberg提出,并在当时成为处理效果最好的算法之一。它可以输出视觉效果良好的半色调图像,因而得到了广泛的推广。为改善该传统误差扩散算法均易在中频区域产生结构性纹理现象,提出了一种基于跳跃扫描路径的误差扩散半色调算法。算法在对像素点进行扫描时会根据一定的条件进行跳跃扫描,直接处理若干像素点之后的像素,并将处理后的误差扩散至相邻但还未经处理的像素点上。大量的实验表明,合理的跳跃距离能够帮助有效地抑制半色调图像中的结构性纹理,得到效果更好的半色调图像,具有更深远的意义和实际应用价值。
The algorithm of error diffusion is first proposed by Floyd-Steinberg and has become one of the best algorithms of dealing result at that time. It can output a better visual halftone picture,so it is extended widely. To improve the phenomenon that traditional error diffusion causes structure texture easily in the mid-frequency,a halftone algorithm of error diffusion based on jump-scanning is put forward. When the algorithm is scanning the pixel point,it will jump to the point which is behind several points according to some certain condition,deals with the current pixel point and diffuse the dealing error to the around pixel point that is not coped. A number of experiments show that reasonable jumping distance can help repress the structure texture effectively and have better half tone dealing result,and can have more reality significance.
出处
《微型机与应用》
2016年第18期48-51,共4页
Microcomputer & Its Applications
基金
国家自然科学基金(61170102)
关键词
跳跃扫描
误差扩散
中频区域
结构性纹理
jump scanning
error diffusion
mid-tone area
structure texture
