Hybrid fast method for fractal image coding
Lijuan Liu · Jisuanji gongcheng · 2004
The nowadays fractal image compression schemes suffers from long encoding time. A hybrid fractal image encoding technique was given,which combined the classifying technique and the tree structure,in order to make the structure of the domain pool more reasonable. It could reduce the number of the searched blocks considerably. At the same time,the time complexity of fractal image coding was analysed. Abstractly this method is effective. Experiments indicate that compared to the old method,this method can speed up the fractal encoding dramatically. Compared with no speeding-up coding,when e=6,the hybrid fractal image coding can improve 57 times with rotation and reflection transformations,and can improve 420 times without rotation and reflection transformations.