tf.contrib.image.flat_transforms_to_matrices

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Converts tf.contrib.image projective transforms to affine matrices.

tf.contrib.image.flat_transforms_to_matrices(transforms)

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

Args:

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

Returns:

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.