计算机工程与应用2001，Vol.37Issue(7)：75-78,4.
基于自适应四叉树分块和DCT变换的大幅面图像分形压缩算法
Large-scale Image Fractal Compression Algorithm Based on Adaptive Quadtree Partition and DCT
摘要
Abstract
Since Barnsley presented the concept of fractal image compression,especially after Jacquin proposeda fully automatic image compression algorithm and Fisher gave a method of adaptive quadtree image partition,fractal imagecoding has attracted a great deal of research. However,it also needs much time,thus it is difficult to put it into effect especially for large-scale image. After this paper introduces Fisher＇s fractal image compression,an improved method is developed based on adaptive quadtree partition and Discrete Cosine Transform(DCT). Experimental results show that this new approach needs less coding time with no obvious depression on the quality of the reconstructed image and high compression ratio,so it is practicable to large-scale image fractal compression.关键词
分形离散余弦变换图像编码数据压缩分类
信息技术与安全科学引用本文复制引用
邓炜,赵荣椿..基于自适应四叉树分块和DCT变换的大幅面图像分形压缩算法[J].计算机工程与应用,2001,37(7):75-78,4.
