该模块利用可变大小的窗口滤波插值进行图像像素重采样，能同时适用整数和分数缩放比例的图像缩放。
The module is designed for both integral and fractional scaling ratios and utilizes variable filter window for calculating pixels of a scaled image to realize pixel re-sampling.
采用快速模拟退火算法来计算分形插值函数的关键参数——纵向比例因子，进一步加快了数据压缩的速度。
Fast simulated annealing is used in calculating the key parameter of fractal interpolation function - vertical scaling factor, thus makes further improvement of data compression speed.
在理论分析的基础上给出了自仿射分形插值函数的表达形式和垂直比例因子的显式表达形式。
The expressions of the affine fractal interpolation function and the locally explicit presentation of the vertical scaling factors are presented on the basis of fractal geometry.
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