Image enhancement based on EMD and adaptive lifting wavelet transform

Abstract

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

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

LI Guangqiong, CHEN Rongyuan. Image enhancement based on EMD and adaptive lifting wavelet transform[J]. Computer Engineering and Applications, 2014, 50(21): 195-199.

李广琼，陈荣元. 基于EMD和自适应提升小波分析的图像增强[J]. 计算机工程与应用, 2014, 50(21): 195-199.

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Image enhancement based on EMD and adaptive lifting wavelet transform

基于EMD和自适应提升小波分析的图像增强

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