Build homography from array of matched points

[cpaniaguam]

I have gone over the documentation looking for a method to use the data returned by match_keypoints to return a homography matrix as in ImageFeatures.qd_rigit with no success. Does there exist such a method in the package? I know I can set up a linear system to get the matrix, but this seems (to me) like natural feature to include in the package.

[ashwani-rathee]

Hey @cpaniaguam, I can see why it might be needed, would you be interested in contributing?

Couple of resources that kind of do it already:

• https://gist.github.com/ashwani-rathee/de006063818ddb8102b79ff9022b2be6
• https://learningjulia.com/2018/08/25/image-stitching-part-2.html#RANSAC-Improving-Homography-Estimation
• https://github.com/peterkovesi/ImageProjectiveGeometry.jl/blob/d753fb832c4bfb07980b31e5db058b1e1cca632b/src/projective.jl#L929

[cpaniaguam]

I'll look into this. Thanks @ashwani-rathee :)

[timholy]

See CoordinateTransformations in case it helps.