计算机工程与应用 ›› 2014, Vol. 50 ›› Issue (21): 195-199.

• 图形图像处理 • 上一篇    下一篇

基于EMD和自适应提升小波分析的图像增强

李广琼,陈荣元   

  1. 湖南商学院 计算机与信息工程学院,长沙 410205
  • 出版日期:2014-11-01 发布日期:2014-10-28

Image enhancement based on EMD and adaptive lifting wavelet transform

LI Guangqiong, CHEN Rongyuan   

  1. College of Computer and Information Engineering, Hunan University of Commerce, Changsha 410205, China
  • Online:2014-11-01 Published:2014-10-28

摘要: 针对经典和提升小波变换共同的缺陷,提出基于EMD和自适应提升小波分析的图像增强算法。对二维图像信息作EMD分解,提取出图像信息的IMF分量,对此IMF分量进行自适应提升小波分解并重构,得到增强图像。仿真及实验结果表明该方法具有有效性和实用性。

关键词: 提升小波变换, 经验模式分解, 自适应提升小波变换, 图像增强

Abstract: An effective algorithm of image enhancement based on empirical mode decomposition and adaptive lifting wavelet analysis is presented. The image signal is decomposed to a number of IMF function via EMD; each IMF function is processed by adaptive lifting wavelet transform. The experiments of image enhancement show that this method is efficient and practical.

Key words: lifting wavelet transform, Empirical Mode Decomposition(EMD), adaptive lifting wavelet transform, image enhancement