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Reversible wavelets for image compression

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5 Author(s)
T. Brahimi ; Dept. of Electron. Eng., Univ. of Jijel, Algeria ; A. Bouridane ; A. Melit ; F. Khelifi
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Reversible wavelet transforms that map integer to integer have important applications in lossless representation. In addition, the lifting scheme is a method to improve a given discrete wavelet transform to obtain specific properties of great importance like a exact arithmetic for calculating transform, a smaller word size for storing transform coefficients, leading to reduced memory requirements, and a fast, in-place implementation of the wavelet transform, in this paper, we focus on reversible wavelets, based on the lifting scheme, for a class of biothogonal wavelets. Besides, we analyse the performance of numerous reversible transforms using an embedded image coding system, for grey level and colour image on the basis of their lossless compression performance.

Published in:

Information and Communication Technologies: From Theory to Applications, 2004. Proceedings. 2004 International Conference on

Date of Conference:

19-23 April 2004