Computer Science ›› 2015, Vol. 42 ›› Issue (4): 302-305.doi: 10.11896/j.issn.1002-137X.2015.04.062

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Improved SPIHT Image Coding Algorithm Based on Hybrid Domain

WANG Xue-chun, LIU Shen-xiao and CHANG Chao-wen   

  • Online:2018-11-14 Published:2018-11-14

Abstract: In order to make image compression algorithm have higher compression ratio and better visual effect,this paper proposed an hybrid domain image coding scheme based on wavelet transform and Contourlet.On the basis of the analysis of the SPIHT algorithm,we cancelled the classification of LIS tables in the SPIHT algorithm,and made image coding uniformly according to the first offspring after sun generation wavelet space tree coding sequence.The comparing results show that the new image compression scheme is superior to that of SPIHT in the recovery image quality and coding time.

Key words: Image coding,Contourlet transform,Wavelet transform,SPIHT algorithm

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