Hybrid Image Compression Algorithm Based on Fractal and JPEG
Guohua Jin · Jisuanji gongcheng · 2011
According to the feature that fractal image compression algorithm has the potential of high compression ratio,this paper presents a hybrid image compression algorithm based on fractal and JPEG.It uses fractal image compression algorithm based on quadtree algorithm for encoding and decoding of 32×32 and 16×16 sub-block area,uses JPEG algorithm for residual regional encoding and decoding.Experimental result shows that this algorithm has better compression ratio and decoded image quality,the mass effect of decoding image obviously weak in JPEG algorithm when the compression ratio is large.