CNN | Keras/PyTorch | CAPTCHA recognition（卷积神经网络、Keras/PyTorch框架、验证码识别）
Switch to branch pytorch to see big changes! It uses PyTorch as framework and uses a more robust method!
Convolutional Neural Network using Keras for CAPTCHA recognition.
Recognition for this type of CAPTCHA:
Actually these CAPTCHAs are generated from repo CAPTCHA_generator.
Using about 5000 samples, Obtain 95% single letter accuracy.