piecewise linear normalization function
...分段线性归一化函数 模糊梯度特征[gap=1196]Key words: handwritten character recognition; gradient normalization; piecewise linear normalization function; fuzzy gradient feature..
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piecewise linear normalization function
分段线性归一化函数
以上为机器翻译结果，长、整句建议使用 人工翻译 。