作　　者： ; ;

机构地区： 复旦大学

出　　处： 《工程图学学报》 1999年第2期61-66,共6页

摘　　要： 本文提出了一种基于数学形态学算子的分形图像编码方法．首先用AMSS算子对原图像进行作用，得到的结果作为DomainPool．在此基础上，再对图像进行分割、搜索并获得仿射交换族，形成相应的PIFS（PartitionedIteratedFunctionSystem）．本文对该方法下的压缩变换、解码算法、Collage定理等相关的理论进行了讨论．在编码过程中，采用AMSS图像作为DomainPool的意义在于，AMSS算子拓宽了DomainPool的边缘范围，使经过采样后的Domain块具有与Range块类似的边缘宽度，增加了两者之间匹配的可能性．实验表明，采用改进后的DomainPool，使Range块和Domain块得到了比较好的匹配，提高了压缩比． A fractal image coding based on morphological operators is presented in this paper. First Domain Pool is produced by an AMSS operator which is acting on the original image. Then PIFS (Partitioned iterated Function System) is obtained by partitioning the image, searching domain block and obtaining affine maps. In this paper, theory implements about the new approach such as contractive map, decoding algorithm and Collage theory are discussed. In the process of encoding, the sense using AMSS image is to widen the edges of Domain Pool and to make sampled Domain blocks have similar character of Range blocks. By using the improved Domain Pool, Range blocks get better matching with Domain Blocks and high compression ratio is obtained.

关 键 词： 分形 图像编码 形态学算子 图像处理 压缩

领　　域： [自动化与计算机技术] [自动化与计算机技术]