noether.data.preprocessors.compose

Classes

ComposePreProcess

Compose multiple transforms and support inversion by reversing the sequence and inverting each transform.

Module Contents

class noether.data.preprocessors.compose.ComposePreProcess(normalization_key, preprocessors)

Compose multiple transforms and support inversion by reversing the sequence and inverting each transform.

Example:

from noether.data.preprocessors.compose import ComposePreProcess

normalizer = ComposePreProcess(
    normalization_key="image",
    preprocessors=[
        MyPreProcessor1(),
        MyPreProcessor2(),
    ],
)
processed_data = normalizer(input_data)
original_data = normalizer.inverse(processed_data)

Parameters:

• normalization_key (str) – key to identify on which getitem_ in the dataset/tensor the preprocessor is applied.

• preprocessors (list[noether.data.preprocessors.base.PreProcessor]) – list of PreProcessor instances to compose.

Raises:

• TypeError – If preprocessors is not a list or if any item in the list is not an instance of PreProcessor.

• ValueError – If the preprocessors list is empty.

normalization_key

transforms

inverse(x)

Return a transform that applies the inverse transformations in reverse order. :param x: The input to be denormalized.

Parameters:

x (Any)

Return type:

Any