A New Hybrid Wavelet and Fractal Image Coding
Jing Ping Yuan · Microprocessors · 2006
Along with the rapid development of information processing,people attach more and more importance to image compression.In this paper,a new wavelet and fractal image coding is put forward.It imports the concept of wavelet-tree,transforming the matching of fractal blocks in conventional fractal coding into the matching of wavelet-trees.According to the different texture information in different directions,different wavelet-trees are defined. When coding the wavelet-trees,zerotree is using neatly,which improves the compression efficiency.Assign different code to the wavelet-trees of different complicated degrees.It is self-adaptive.The result shows,it has better compression effect,contrasting with the conventional fractal coding based on wavelet transform.