I have trained a keras OCR model on MNIST and have to train apply it in order to extract the grade out of images like this one (one digit at a time):
Now, the problem is that the size and the distance differs from image to image, so my sliding window approach fails.
Can you give me any hint/clue on how I can extract those 3 digits that make up the grade? Thanks!
PS: Some other examples of grades:
