Study of the Dependence of Image Compression Efficiency on the Choice of Wavelet Filter Type

Abstract

Currently, methods of image compression based on wavelet transforms, introduced by Grossman and Morlet in the mid-80s of the last century, are becoming increasingly widespread. The main disadvantage of Fourier transforms and DCT in particular is that their harmonic basis functions work poorly with non-periodic signals, as a result of which some useful information is irretrievably lost. As a result, with high compression ratios, images acquire a mosaic appearance, greatly deteriorating their quality.