10.3969/j.issn.1002-137X.2001.12.009
基于局部边缘和变化率检测的无损图像压缩方法
In this paper,a new predictive coding algorithm is presented for lossless image compression. This algorithm considers both the local edge and the variance ratio of pixel value in prediction process. It further reduces the entropy of the predictive error image with error feedback technology. Simulation results show that the performance of this algorithm is better than not only the standard algorithm(LOCO_I)provided by JPEG_LS ,but also CALIC, which is the state-of-art in the literature of image compression.
Image、Lossless compression、Edge、Variance ratio
28
TP39(计算技术、计算机技术)
国家高技术研究发展计划863计划863-317-04-18-99;重庆邮电学院校科研和教改项目A2001-25
2004-01-08(万方平台首次上网日期,不代表论文的发表时间)
共4页
30-32,29