Hi,

Thanks for admiring the blog and regarding writing blog on the classification of 13 band images, I got busy with my research in university so it became difficult to write a blog on same. But the code is still there in my GitHub repo(https://github.com/sachinsharma9780/Mapping-Infrastructure-and-Monitor-Urbanization-in-Europe-using-Deep-Learning-/blob/master/Code/exp2_c1.ipynb). The link can help you here, Keras can only read upto3 band images, therefore you have to write your own Data preprocessing pipeline which can handle 13 band images in Keras, this is shown in the link. I hope the link will help you. For further questions just ping me again. Happy Hacking!