How to mark up data for computer vision?

Question

Python

How do you mark up data for CV?
I'm starting to learn CV and used Matlab for markup, but I don't understand how to use it with Python to train the model on this data. Are there other tools for this?

Answer 1

For object detection, I marked it with labelImg, if I'm not mistaken. Simple and convenient application. Saves adequate annotations to a text file.
For classification, I wrote a simple python script so that it would show me about 10 pictures in a row, and I would write 10 letters associated with classes in the input field. For the evening 10 thousand so marked.