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I'm rotating an image using findHomography, now I want to use transform a single point using the homography matrix. Using perspectiveTransform returns 0 and making homography*matPoint returns a value outside the origina image. What else should I do? Thanks

I'm rotating an image using findHomography, now I want to use transform a single point using the homography matrix. Using perspectiveTransform returns 0 and making homography*matPoint returns a value outside the origina image. What else should I do? Thanks

I'm rotating an image using findHomography, now I want to use transform a single point using the homography matrix. Using perspectiveTransform returns 0 and making homography*matPoint returns a value outside the origina image. What else should I do? Thanks