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but if you use knnMatch, it will return a list of (the best) K matches.

using match instead will return a single list of matches. (that's probably, what you expected)

but if you use knnMatch, it will return a list of (the best) K matches.matches instead of a single DMatch.

using match instead will return a single list of matches. (that's probably, what you expected)

if you use knnMatch, it will return a list of (the best) K matches instead of a single DMatch.DMatch. (K=2 was chosen in your example)

using match instead will return a single list of matches. (that's probably, what you expected)