@article{MAKHILLAJIT2006585187, title = {A New Approach Based on Shapiro`s Embedded Zerotree Wavelet (Ezw) Algorithm for Image Compression}, journal = {Asian Journal of Information Technology}, volume = {5}, number = {8}, pages = {893-900}, year = {2006}, issn = {1682-3915}, doi = {ajit.2006.893.900}, url = {https://makhillpublications.co/view-article.php?issn=1682-3915&doi=ajit.2006.893.900}, author = {Ouafi, A.,Z.E. Baarir,A. Taleb Ahmed and}, keywords = {Image compression,shapiro`s EZW algorithm,MEZW,entropy,coding,PSNR,compression ratio,SPIHT and SPECK algorithms}, abstract = {In this paper, we propose a new study to image compression based on the principle of Shapiro`s Embedded Zerotree Wavelet (EZW) algorithm. Our study, the modified EZW (MEZW), distributes entropy differently than Shapiro`s and also optimizes the coding. This study can produce results that are a significant improvement on the PSNR and compression ratio obtained by Shapiro, without affecting the computing time. These results are also comparable with those obtained using the SPIHT and SPECK algorithms.} }