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Size of ORB descriptor window/ neighbourhood?

Asked by Markus Weißflog on 17 Jun 2019
Hi,
I would like to use the orb descirptor implemented by the extractFeatures-function as a hollistic desriptor. Therefore I need to resize the image and create a ORBPoints-object at the center location. Now, my question is: to what scale/ resolution do I have to resize? Or is there a way to specify the size of the neighbourhood used by the orb descirptor? Or could it be, that my approach is somehow wrong? I already read the documentation, but as far as I understand, the 'BlockSize' property does not apply to orb.
Thank you very much

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