Combined Hierarchical Wavelet-Coefficient Structures For Grayscale Image Compression

Abstract

A suitable algorithm suggested with wavelet compression for gray scaleimages based on one- and two-dimension combined hierarchical structure, in thesub-band which has been generated by the aid of several types of waveletfunctions. It is shown that the using of combined based hierarchical structuresallows us to reduce the calculations complexity of compression anddecompression at constant values of compression coefficients.