多小波图像变换的自适应预滤波

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Abstract A simple and efficient method to design adaptive prefilters based on minimizing the high pass energy of the signal multiwavelet decomposition is presented in this paper. This method can be generalized to 2-dimensional images by processing rows and columns respectively. In this way adaptive prefiltering can be performed for images so that the reconstructed image quality is greatly improved. The experimental result shows that the adaptive prefilter given in this paper is superior to the other prefilters available.

Key words： Multiwavelet Adaptive prefilter Image compression

Received: 16 November 1999

PACS:	TN713
	O177.6

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	Wang Ling
	Wang Weiwei
	Song Guoxiang

Cite this article:

Wang Ling,Wang Weiwei,Song Guoxiang. ADAPTIVE PREFILTER FOR MULTIWAVELET IMAGE TRANSFORM[J]. , 2001, 23(10): 949-953 .

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http://jeit.ie.ac.cn/EN/ OR http://jeit.ie.ac.cn/EN/Y2001/V23/I10/949