Built in function to combine affine transforms in OpenCV?

Question

Is there any built-in function in Opencv which combines affine transforms?
I can write it by myself too, but I'd stick to using library functions when possible.

Cheers.

Answer 1

Right now I do this:

• I allocate a1, a2, r matrices, all 3x3 eyes,
• I replace the top part of the first two with the transformation matrices a1aff, a2aff.
• r = a2*a1
• return the first two rows of r.

This solution will do for now.