img_flat_transforms_to_matrices {tfaddons}

Flat transforms to matrices

Description

Converts projective transforms to affine matrices.

Usage

img_flat_transforms_to_matrices(transforms, name = NULL)

Arguments

transforms

Vector of length 8, or batches of transforms with shape '(N, 8)'.

name

The name for the op.

Details

Note that the output matrices map output coordinates to input coordinates. For the forward transformation matrix, call 'tf$linalg$inv' on the result.

Value

3D tensor of matrices with shape '(N, 3, 3)'. The output matrices map the *output coordinates* (in homogeneous coordinates) of each transform to the corresponding *input coordinates*.

Raises

ValueError: If 'transforms' have an invalid shape.