Author/Authors :
TERKI, NADJIBA Biskra university - Genie electric department, Algeria , BENTRAH, WAFA Biskra university - Genie electric department, Algeria , SAIGAA, DJAMEL M’sila university - Electronic department, Algeria
Title Of Article :
LOSSY IMAGE COMPRESSION USING A THREE STEP NONLINEAR WAVELET
Abstract :
The wavelet transform is a powerful and complex tool in the context of data compression. The discovery of the lifting schemes structure make à wavelet filters simple, rapid and reversible. The compression field is an open research area. In recent years, a significant development has experienced leading to the emergence of a large number of applications. This work aims to study some adaptive nonlinear wavelet -developed recently- based on three nonlinear steps. These transforms are applied in lossy image compression; in our work, we used a bit allocation algorithm and scalar quantization.
NaturalLanguageKeyword :
Nonlinear wavelet , lifting schemes , lossy image compression , bit allocation algorithm , uniform quantization
JournalTitle :
Courrier Du Savoir
