[D] CNN predicts one class well but not the other two
I have 300 images, 100 are of class 1, 100 are of class 2 and 100 are of class 3.
My CNN model can differentiate between class 1 and class 2 & class 1 and class 3 well. However it gets confused between class 2 and class 3.
How can I make it identify these classes better?