How can I get an absolute value that tells me how much the template matched in the place it matched the best? I know about minMaxLoc() but that only tells me what the biggest value is, but I have no idea what the MAXIMUM value is so that I can get some kind of idea about how good a match it is.
I've seen people saying that you can get a percentage using normalization, but that doesn't really help me since the biggest value will always be 100%. Am I missing something?