IMAGE COMPRESSION BASED ON LOSSLESS WAVELET WITH HYBEID 2D_DECOMPOSIYION

Abstract

ABSTRACT:- This paper introduces a proposed method for hybrid 2D wavelet transform,and applies this method on the field of lossless image compression method. Wavelets in 2D orhigher dimensions are often generated by a decomposition scheme from 1D wavelets. There aretwo decomposition schemes; the standard (rectangular) and the nonstandard (square)decomposition. A hybrid 2D wavelet transform is a result of mixing these two decompositions inorder to improve the compression performance and compression ratio.KEYWORD: Hybrid 2D wavelet transform, Discreet wavelet transform, Lossless compression.