R vs Python: Image Classification with Keras

Many data professionals are strict on the language to be used for ANN models limiting their dev. environment exclusively to Python. I decided to test performance of Python vs. R in terms of time required to train a convolutional neural network based model for image recognition. As the starting point, I took the blog post by Dr. Shirin Elsinghorst on how easy it is to build a CNN model in R using Keras.