Permutation coding of images using cosine transform

Abstract

This paper presents the concept of permutatbn coding E). which has typical applications for low bit-rate image compressing and coding. I. INTFiODUCIlONMethods for compressing discrete data via prediction coding. transform coding, or vector quantizalon are well known. in whlch the positions ofdata samples in a se-quencex=k,x,..-%]' are not important becausethey are in the ~t u d order and are known by both the