Handwritten digit Captcha

• Objective : A simple solution for replacing traditional captcha with a handwritten digit recognition using deep learning model.

• Solution : MNIST dataset is used to train a simple CNN based model, the model is then saved and further exposed as a REST api using Flask. With javascript code input image is obtained and processed.

• Results : Test accuracy of 90% was obtained on MNIST dataset using the CNN based model.

• Run : python main.py to launch the application

Sample output :