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It is well known in the OpenCV community that the Haar object detector, SIFT & SURF object recognition algorithms are patented.

My question if FACE RECOGNITION is patent-free and can I use it commercially?

Thanks & Kudos OpenCV!

It is well known in the OpenCV community that the Haar object detector, SIFT & SURF object recognition algorithms are patented.

My question if FACE RECOGNITION is patent-free and can I use it commercially?

Thanks & Kudos OpenCV!