Using a CNN for custom png image dataset

I have a set of black and white images with three classes (0,1,2).

My images are 256 × 176.

I want to find code that uses a CNN (any works) to train a model to classify this type of image into one of the three classes.

I am very frustrated since I have not been able to find well-documented code that helps me know where exactly to put my image files and how to work with the dimensions.

Any help would be GREATLY appreciated :slight_smile: !