1 | initial version |
To make it short: Afaik, you have to write that yourself (two for loops sliding over large matrix and using submat with the correct indices).
If you just need the points and a step-size of 6 (I think 6 is the default) suits you, you can use FeatureDetector.create(DENSE)
(note: under C++ you could specify the step size, etc.).