I have used the MOTION_HOMOGRAPHY function in OpenCV (python3.6, enhanced correlation coefficient) to register a pair of images, and I am trying to interpret the 3 x 3 warp matrix the function returns:
[1.304 6.65e-2 -19.71
3.19e-3 1.163 -22.92
3.84e-5 2.06e-4 1 ]
1.304is the stretching/scaling along x
6.65e-2is the shearing in x
-19.71is translation along x
3.19e-3is the shearing in y
1.163is the stretching/scaling in y
-22.92is the translation along y
Is this right?
3.84e-5is the stretching/scaling in z?
2.06e-4is the shear in z?
1is the translation along z?
I think z is the intensity of my image. As a secondary question, does a homography matrix transform intensity? Thanks in advance.