possible bug in Homography

[Mona77]

@edgarriba To calculate homography matrix you have solved for Ah=x0 where h is [8x1] vector and then you append 1 to this vector.
I would try solving for Ah=0 where h is [9x1] then divide each element of h by the last one. Something similar to opencv

Please let me know if it works.

[edgarriba]

@Mona77 this is because to transform points with the homography we need homogeneous coordinates (3x3 * 3x1). If you want you can check the maths from this tensorflow implementation:
http://kindoblue.nl/neural-network/tensorflow-homography.

I've also been comparing to OpenCV results and I get the same results.

[bhack]

https://ekrim.github.io/computer/vision,pytorch,homography/2018/08/07/deep-homography-estimation.html