基于otsu算法的图像分割算法实现，经过多次验证，程序无错误。-Based on Otsu algorithm for image segmentation algorithm, after repeated verification, error-free program.

利用httpclient下载图片,然后可以利用OCR对图像验证码进行解析-Use httpclient download pictures, then you can use OCR to parse the image verification code

Previous works have shown that the ear is a promising candidate for biometric identification. However, in prior work, the preprocessing of ear images has had manual steps and algorithms have not necessarily handled problems caused by hair and ear