What libraries are there for recognizing a picture object in a picture?

Question

Neural networks

It is necessary, for example, to recognize the card 6 of Hearts, the fool in the game. What are the solutions .
For example, I know the approximate coordinates of finding objects for recognition, and I can compare my image and the area on the screen by bytes with an error.

Answer 1

For this task, a neural network is not needed, just take opencv .