MNIST digit recognition with CNN and Keras

In this post I will briefly go through application of CNN (Convolutional Neural Networks) to well known MNIST dataset. I will use Keras for this. There is a well-known example at Keras repo: mnist_cnn.py, and I will use its code for this blog post. So there is nothing new in this blog post. Rather it is a try to put some basics into my head for further use.