因此，一幅图像的分形编码就是寻找一个合适的压缩仿射变换，它的不动点是原始图像尽可能好的近似。
Thus, encoding an image by fractal techniques consists of finding an appropriate contractive transformation whose fixed point is the best possible approximation of the original image.
第四章，在赵耀，袁保宗提出的新型仿射变换的基础上，和自适应四叉树编码方法结合，提出了一种新的压缩编码方法。
On the basis of the new affine transformation and Self-adapted quadtree im-age compression method, we bring forward a new image compression method.
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