Keras ImageDataGenerator's 'flow' Methods, and When to Use Them

ImageDataGenerator is Keras's go-to class for pipelining image data for deep learning. It allows easy access to your local file-system and multiple different methods for loading in data from different structures. It also has some pretty powerful data pre-processing and augmentation capabilities. For the purposes of this tutorial, we won't be doing much data augmentation, we will primarily be focusing on the different methods for reading data in using ImageDataGenerator. If you already have your own image data simply need a quick tutorial on a single method, review the'Methods and use-cases' section, and continue down to the appropriate tutorial.