误差扩散半色调技术中图像插值方法的比较  

Comparison of Image Interpolation Method in Error Diffusion Halftoning

作　　者：易尧华[1] 于晓庆[1] 胡元超[1] 

机构地区：[1]武汉大学印刷与包装系,武汉市珞喻路129号430079

出　　处：《武汉大学学报（信息科学版）》2009年第5期535-538,共4页Geomatics and Information Science of Wuhan University

基　　金：国家973计划资助项目(2009CB723900);武汉大学印刷与包装系青年基金资助项目(200703)

摘　　要：比较分析了最近邻插值、双线性插值和双立方插值3种图像放大方法得到的误差扩散半色调图像的质量,并通过基于人眼视觉模型的方法来评价半色调图像质量。实验结果表明,采用图像最近邻插值放大方法得到的误差扩散半色调图像质量最佳。Error diffusion algorithm is one of the commonly used image hafltoning methods. The quality of the halftoning image is directly affected by the different image interpolation methods. We mainly analyzed the quality of error diffusion halftoning images using the nearest neighbor interpolation, bilinear interpolation, and bicubic interpolation. The image quality method based on human visual model was used to evaluate the qualities of the half- toning images. Experiment shows that the image of error diffusion halftoning using the nearest neighbor interpolation is the best.

关 键 词：误差扩散半色调 图像插值 人眼视觉模型 

分 类 号：TP751.1[自动化与计算机技术—检测技术与自动化装置] P288[自动化与计算机技术—控制科学与工程]