中文说明：该程序是对输入的数字图片进行特征提取，以得到图片对应的向量，从而为下一步的识别提供帮助。
English Description：
The program is the input of digital image feature extraction, in order to get the corresponding image vector, so as to provide help for the next step of recognition.
Feature extraction of the input digital image
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中文说明：该程序是对输入的数字图片进行特征提取，以得到图片对应的向量，从而为下一步的识别提供帮助。
English Description：
The program is the input of digital image feature extraction, in order to get the corresponding image vector, so as to provide help for the next step of recognition.