纹理线提取 extrication texture line
掌纹线特征提取 Palm-print line feature extraction
纹理中心线提取 venation principal ray extraction
纹线提取
Line extraction
以上为机器翻译结果，长、整句建议使用 人工翻译 。
经过预处理后提取出了纹线，且保留了绞线的关键信息，有利于下一步的特征提取工作。
After the preprocessing, the ridge is extracted and the key information is saved. It is benefit to the work of features extract.
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最后通过计算掌纹图像间的隶属度评价掌纹线的提取效果。
The degree of membership among different images is lastly applied to evaluate the effect.
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