Inverts an affine transformation

iM = cv.invertAffineTransform(M)

Input

• M Original affine transformation, a 2x3 floating-point matrix.

Output

• iM Output reverse affine transformation, same size and type as M.

The function computes an inverse affine transformation represented by 2x3 matrix M:

 [a_11, a_12, b_1; a_21, a_22, b_2]

The result is also a 2x3 matrix of the same type as M.