Julia曲线"与分形图像压缩编码  

Julia Curves" and Fractal Image Compression Coding

作　　者：朱志良[1] 赵德平[1] 朱伟勇[1] 

机构地区：[1]东北大学信息工程学院,沈阳110006

出　　处：《中国科学院研究生院学报》2002年第2期177-181,共5页Journal of the Graduate School of the Chinese Academy of Sciences

摘　　要：将 Julia曲线"按正方形形状以多种方式进行量化,并将量化的 Julia曲线 "用于分形图像压缩编码,改变了分形图像压缩编码以变化的压缩编码字典进行编码的缺点。此外,还建立了一个小型的常用字典,用以加速分形图像的压缩编码。实验结果表明, Julia曲线 "能很好地拼贴所要编码的图像,并具有分形图像的解码优点。The traditional fractal image compression coding that was designed by Barnsley is to divide an image that wants to be coded, then fractal image compression coding is begun with a compression dictionary that is made up from the image. For this reason, the compression dictionary is always changeable. Firstly, this paper measures 'Julia curves'with square patterns by many ways, then 'Julia curves'of measurement apply to coding fractal image and eliminate the defect that fractal image compression coding depends on changeable code compression dictionary. In addition, this paper also builds a small common dictionary that applys to speeding up fractal image compression coding. The experimental results show that the 'Julia curves'can collage fractal image to be encoded very well and has some fractal image merit decoding.

关 键 词：分形图像 Julia曲线 图像编码 图像压缩字典 解码 分形压缩编码 量化 

分 类 号：TN919.81[电子电信—通信与信息系统]