• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2005, Vol. 27 ›› Issue (12): 30-31.

• 论文 • 上一篇    下一篇

基于非线性软阈值化的小波图像压缩方法

余胜生 郑心炜 周敬利   

  • 出版日期:2005-01-01 发布日期:2010-06-22

  • Online:2005-01-01 Published:2010-06-22

摘要:

针对传统硬阈值和软阈值化过程中因信号锐变导致图像质量变差的问题,本文对小波压缩中的软阈值算法进行了改进,提出了非线性软阈值压缩算法,使得图像压缩质量有了 较大提高。

关键词: 非线性软阈值 小波 图像压缩

Abstract:

To resolve the problem of bad image quality because of sudden signal changes during the process of traditional hard and soft thresholding, this paper   presents an improved soft thresholding method named non-linear soft thresholding, and this method highly improves the quality of compressed images.

Key words: (non-linear soft thresholding, wavelet, image compression)