计算机工程2012，Vol.38Issue(21)：221-225,236,6.DOI:10.3969/j.issn.1000-3428.2012.21.059
基于颜色聚类的计算机桌面图像压缩算法
Compression Algorithm for Computer Desktop Image Based on Color Clusering
摘要
Abstract
This paper proposes an image compression algorithm based on color clustering to compress computer desktop image. It divides computer screen image into 16×16 non-overlapping blocks, then each block is classified into text/graphic block, hybrid block or picture block. For text/graphic blocks with rich color, a color clustering method is used to reduce the number of colors, then text/graphic block is coded by lossless compression. Natural image block is coded by H.264 intra prediction coding method. Hybrid block is coded by hybrid coding method. Experimental results show that the image by proposed algorithm has higher PSNR and SSIM than traditional algorithms.关键词
计算机桌面图像/混合图像/块分类/颜色聚类/图像压缩/图像编码Key words
computer desktop image/ compound image/ block classification/ color clustering/ image compression/ image coding分类
信息技术与安全科学引用本文复制引用
卢毓海,沈燕飞,王春洁,朱珍民..基于颜色聚类的计算机桌面图像压缩算法[J].计算机工程,2012,38(21):221-225,236,6.基金项目
国家自然科学基金资助项目(61001123) （61001123）
广东省中国科学院全面战略合作基金资助项目(2011B090300070) （2011B090300070）
