TY - JOUR AU - TERKI, NADJIBA. AU - BENTRAH, WAFA. AU - SAIGAA, DJAMEL. PY - 2014 TI - LOSSY IMAGE COMPRESSION USING A THREE STEP NONLINEAR WAVELET JF - Courrier du Savoir; Vol. 12 (2012): Courrier du Savoir KW - N2 - 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. UR - https://revues.univ-biskra.dz/index.php/cds/article/view/447