Image compression with interpolation in wavelet-transform domain

Abstract

Wavelets are being used in a number of different applications such as image enlargement and image compression. In order to benefit both applications, we propose a method to estimate the high pass output from the low pass one. Using the predicted high pass output, we would be able to enlarge an image superior to other compared interpolation methods in many situations. Moreover, we utilize the predicted sub-band for a wavelet image coder. It is shown that by using this proposed method we can profit both image enlargement and its compression.