摘要
该文算法以整数小波变换和EZW算法为基础,在多种EZW算法改进形式的基础上,综合并提出了一种新的高频子带重要系数优先扫描机制,充分利用了同一分辨率高频子带间和同一子带内重要系数的相关性,通过与当前流行的静态图像标准JPEG及JPEG2000比较,结果表明,此算法取得了较好的编码效果,具有一定的可行性。
Based on integer wavelet transform and a lot of existing EZW optimized algorithms,the paper combines all these and brings forward a new mechanism which is the important coefficient in high frequency bands is firstly scanned and encoded,the relation between them with the same resolution and themselves are full used.Through the comparison with JPEG and JPEG2000,the result shows that the algorithm in this paper gets better compressing efficiency and feasible.
出处
《计算机工程与应用》
CSCD
北大核心
2005年第30期91-93,共3页
Computer Engineering and Applications
作者简介
胡涛(1956-),女,教授,研究方向:彩色图像处理及多媒体信息处理。刘改进(1980-)男,硕士研究生,研究方向:多媒体信息处理。