Quote:
Originally Posted by Odang
What is the difference between openCV methode to compare pixel/images and "pure" pixel/image search(what do you mean with pure?)? Shouldnt they all use the same way of comparisom(template matching)?
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I have used openCV templateMatch in past (on CPU as well as GPU) and speed of finding object on full-hd pic was about 40-400ms (depends on maaany settings)...with simple ImageSearch which go 1 by 1 in pixel array (and comparing just simple pixel values) you can get match in 4-40ms.
The main difference there is in "match"..openCV has some more comlicated algorithms for that which take more time.
Here is explained OpenCV templateMatch:
PS: I havent work with OpenCV for about 2 years now...maybe some really significant improvements were made.