基于零树小波与分形图像的编码算法结合研究  

An Encoding Algorithms Together Research Based on Zerotree Wavelet and Fractal Image

作　　者：张剑 

机构地区：[1]广东纺织技术学院,佛山528000

出　　处：《计算机工程》2004年第19期35-37,共3页Computer Engineering

基　　金：国家"863"计划基金资助项目(863-317-01-10-99);国防科技预研项目

摘　　要：通过有机结合零树小波编码、分形图像编码,提出了一种基于零树小波和分形图像的小波图像压缩算法,讨论了基于零树小波图像压缩的编码算法机理,提高了算术编码的性能, 并对JPEG2000与JPEG效果图像的测试实验结果进行了比较,实验结果表明,JPEG2000zj的压缩效果优于目前已有的小波图像压缩算法。By combining Zerotree wavelet, fractal image fractal encoding together, a new fractal image compression algorithm based on Zerotree wavelet and fractal image is presented. The encoding arithmetic mechanism based on Zerotree wavelet fractal image compression is discussed. The efficiency of arithmetic coding is improved, and compared the test experiment result of JPEG2002 with JPEG effect image, experimental results demonstrate that JPEG2000zj performs better compression than the existing wavelet image compression algorithms.

关 键 词：小波系数 零树 图像压缩 分形 小波变换 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]