We firstly overview the properties of fractal coding in image domain, then we derive the corresponding formula of scaling factor and offset of affine transform in DCT domain.

首先，综述了图像域中分形编码的特性，然后导出在离散余弦变换(简称DCT)域中仿射变换的伸缩因子和偏移量的对应公式。

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In the coding process, scale factor, fuzzy-control rule and Subordination function are integrated to code in order to complete integral optimizing.

编码过程中对比例因子、模糊控制规则和隶属度函数进行了统一编码，实现了多个因数的整体寻优。

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The human visual weighting factor change the order of coding rather than the value of coding. The algorithm has much faster coding speed and better compression effect.

基于人眼视觉特性的加权因子改变编码位序而不是编码值，该算法有更快的编码速度以及较好的压缩效果。

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