pairwise_object_stats

Compute the TP, FP, FN objects from a boolean contigency table.

Parameters

matches : np.ndarray
    A pairwise boolean matrix where True values at pos (i, j)
    indicate correctly detected objects for the corresponding
    labels i and j. Shape: (n_labels_gt, n_labels_pred).
sum_reduce : bool, default=True
    Reduce the boolean indice arrays by summing to get the correct
    number of TP, FP, and FN objects.

Returns

Tuple[int, int, int]:
    The number of TP objects, FP objects, and FN objects in
    a labelled mask.