Another is to intenerate the input vectors by hyperbola tangent function.

二是采用双曲线正切函数柔化输入矢量。

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For edge areas, the input vectors are quantized with large-size codebook to maintain the image quality.

对于边缘区域，用较大的码书去量化当前输入矢量以保证图像质量。

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Once the input vectors have passed the "equal size" and "size greater than 1" tests, the heart of the algorithm is executed.

一旦输入向量通过了“大小相等”和“值大于1”测试，就执行算法的核心部分。

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