Matching images with rotation/scaling invariant match

Hrishi Ganu hrishikeshvganu at
Thu Jan 15 06:28:54 EST 2015

I have a template image and want to match it with a set of images. Since
the template could be in a rotated position or scaled in the image I want
to use ORB.

I have extracted the ORB descriptor for the template image and for each of
the images to be matched.

Question-how should I assess the degree of match between the template's ORB
descriptor and that for the image?
Can I use len()  ndarray returned by match_descriptors since I'm specifying
the same # keypoints for both the templete and the images?

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