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
First of all you can check this example.
It is possible that a projected point lies beyond the border of the original image. You can use a bigger resulting image to see the projected points.
If you are unsure about the behavior of the function you can check the projection of a point on which the homography is based so sticking to the above example one object point has to be projected to one scene point.
Earlier I have started to work with a really simple case to understand what is going on inside: e. g. an almost identity matrix. Then I have used more and more complex transformations.
Asked: 2012-12-23 06:32:21 -0600
Seen: 9,732 times
Last updated: Dec 23 '12
