A fast algorithm of image fractal coding compression based on wavelet subbands
Yide Ma · Journal of Lanzhou University · 2002
A rapid algorithm of image fractal coding compression based on wavelet subbands is presented in this paper.Matching blocks′searching was first restricted to a neighborhood of subtrees based on the structural characteristic of wavelet subtrees,effectively reducing coding time.To improve the quality of image reconstructed,coding on the basis of the subbands reconstructed and directly coding to blocks with higher errors are also presented.Experiments indicate that this scheme can not only reduce coding time effectively but also improve the quality of the reconstructed image.