摘要
从验证码识别的角度设计并采用VC实现了一种检验验证码安全性的方法。该方法首先对验证码图片进行灰度化、二值化、字符分割、重新排版等预处理,然后调用微软MODI组件完成对验证码图片的识别。通过对多个不同网站批量的验证码图片进行识别,表明该系统对于字符规整易于分割的验证码图片具有较好的识别效果。
From the perspective of the code identification,a security checking method of authentication code is designed and implemented with VC. This method first codes pictures by graying, binarization,character segmentation,re-typesetting and other pre-proeessing, and then calls the Microsoft MODI component to complete the verification code image recognition. Tests show that the system is high in recognition accuracy of decoding CAPTCHA image in which characters are well-positioned and easy-separated.
出处
《北京信息科技大学学报（自然科学版）》
2010年第1期85-88,共4页
Journal of Beijing Information Science and Technology University
