Class Identity

monai/transforms/utility/array.py:117–130

Do nothing to the data. As the output value is same as input, it can be used as a testing tool to verify the transform chain, Compose or transform adaptor, etc.

class Identity(Transform):
    """
    Do nothing to the data.
    As the output value is same as input, it can be used as a testing tool to verify the transform chain,
    Compose or transform adaptor, etc.
    """

    backend = [TransformBackends.TORCH, TransformBackends.NUMPY]

    def __call__(self, img: NdarrayOrTensor) -> NdarrayOrTensor:
        """
        Apply the transform to `img`.
        """
        return img


class RandIdentity(RandomizableTrait):