Fractal image compression coding based on Mandelbrot collection and Logistic mapping
Dongwei Zhang · Jisuanji gongcheng yu sheji · 2008
A fixed compression dictionary is created to change the fact that an image has one-to-one compression dictionary and advance the fractal image compression algorithm based on Mandelbrot collection and Logistic mapping. The function = 2+ with different z can create different curves. The paper use the quantification table which comes from Logistic mapping to make the curves quantification and then obtain many image blocks, thus abundant compression dictionary is built. During the encoding, match to the image blocks in the compression dictionary, then the image block satisfied the condition will be carried on encoding; During the decoding, reading from compression and restructing the former image. Using this algorithm, it can obtain a nice result because of the abundant compression dic- tionary. It has higher compression ratio, faster decoding and perfect decoded image.