message: Fixed non-statically shape verification
diff: @@ -1818,7 +1818,7 @@ def grayscale_to_rgb(images, name=None):
  The converted grayscale image(s).
  """
  with ops.name_scope(name, 'grayscale_to_rgb', [images]) as name:
  - _AssertGrayscaleImage(images)
  + images = _AssertGrayscaleImage(images)
  images = ops.convert_to_tensor(images, name='images')
  rank_1 = array_ops.expand_dims(array_ops.rank(images) - 1, 0)
  