so… strictly line drawings, users can’t vary line thickness, no solids/floodfill/stickers/brushes.
Yes, at least for now. So far my idea was to only allow changing colors, but I might add more later if the original image comparison will continue to work.
you should look for such DNN approaches
Does OpenCV have any such DNN’s I can just plug and use? Or do you know where I can get a pre-trained model for this?
At least for now, I dont want to draw and tag thousands of images so that I can train a basic NN.
Or is there any algorithm or OpenCV function(s) I can try out that could give me a half decent drawing comparison?
What you are saying makes a lot of sense, but it is a little too abstract.
I would love it if you could give me a more practical/direct example of one way I could try and solve my problem, even if it is “bad”.
I mentioned in the OP that histogram comparison is probably not a good solution, but could it work? Any other such simple image comparison I could do with OpenCV or similar tools without too much work, at least to get me started?
And thanks for all the help so far 