常用的opencv图像特征提取算法。包括直方图、边缘检测、角点检测、直线提取、圆形提取等。并包括不太成熟的BP神经网络识别纯底色数字。-Commonly used opencv image feature extraction algorithm. Including histograms, edge detection, corner detection, line extraction, circular extraction. And includes less mature pure b

利用神经网络进行标准印刷体数字识别，对0-9十类数字进行准确分类。(The neural network is used to identify the standard print numbers, and the 0-9 and ten types of digits are classified accurately.)