mitk.split_label_value_mapping_by_source_and_target_group

mitk.split_label_value_mapping_by_source_and_target_group(source: mitk.MultiLabelSegmentation, target: mitk.MultiLabelSegmentation, label_mapping: collections.abc.Iterable) → dict[int, dict[int, list[tuple[int, int]]]]

Partition a label-value mapping by source-group and target-group pair.

Used internally by transfer_labels() to schedule cross-group transfers correctly.

Parameters:

• source – Source MultiLabelSegmentation.

• target – Target MultiLabelSegmentation.

• label_mapping – Iterable of (source_value, destination_value) pairs.

Returns:

A mapping keyed by (source_group_index, target_group_index) to the subset of label_mapping whose endpoints live in those groups.