Using the SIFT and SURF descriptors in detector_descriptor_matcher_evaluation.cpp

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Hi,

I'm conducting a comparison of descriptors using the code in (Example) detector_descriptor_matcher_evaluation.cpp. I managed to get FREAK, ORB, BRISK and BRIEF running, but I can't seem to get SIFT and SURF to work. The problem is that when calling

descriptor = DescriptorExtractor::create(descriptor_name);

The function "create" doesn't have SIFT and SURF in the list of algorithms.

Can someone please explain to me how can I use SIFT and SURF in that framework?

Thanks in advance!

Gil.