How to use the Computer Vision System Toolbox OpenCV Interface?

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I've download the OpenCV 3.1.0 and correctly installed the Computer Vision System Toolbox OpenCV Interface. I followed these instructions:
The whole process was ok, the examples run properly.
Now, I'm very confused, because I'm trying to run the built-in functions of OpenCV in Matlab, but I can't understand how. It seems like there is no way to do this. Some sources tell that I have to write the C++ code myself, but I don't know the C++ language. Instead this link confirms that it is possible:
My purpose is to use the feature detector, to extract keypoints from an image using the Harris corner algorithm.
Please, could someone help me? I need a guide... which OpenCV functions I have to call? How?
Thank you very much, kind regards.

Accepted Answer

Tohru Kikawada
Tohru Kikawada on 21 Feb 2017
If you just want to use Harris corner detection algorithm, try detectHarrisFeatures function to do this. You don't need coding a C++ wrapper.

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