U ?hF@sddlmZddlmZddlZddlmZddlm Z ddl m Z ddl m Z edddddddddd d ddddddgZeddddddd d d d d d d d dddgZeddddddddd d ddddddgZeddddddd d d d d d d dddgZedddddddddddg dddddddddddg ddd d dddddddg dd d d dddddddg dd d ddddddddg ddd ddddddd dg dddddddddd dg dddddddddddg dddddddddddg dddddddddddg g Zed d d d d d dddddg d d d d d d dddddg d d d d d d d ddd dg d d d d d d d d d d d g d d d d d d dd d d d g d d d d d d d d d d d g d d d d d dd d d d d g d d d d d ddd d d d g ddd ddddd d d d g dddddddddd dg g Zedddddddddddg dd d d d ddddddg d d d d d ddddddg d d d d d ddddddg d d d d d dddd d d g d d d d ddddd d d g dd d d ddddd d d g ddddddddd d d g dddddddddddg dddddddddddg g Zedddddddddddg dddddd d ddddg ddd d dd d ddddg dd d d dd dddddg ddd ddddddddg gZed d d d d d d d d d dg d d d d d d d d d d d g d d d d d d d d d d d g d d d d d d d d d d dg d d d d d d d d d d dg gZeddddgdd ddgddddgddddggddddgdd d dgddddgddddggddddgdd ddgddddgddd dggddddgddddgddddgddd dgggZed d d d gd d d d gd d d d gdd d dggd d d d gd d d d gd d d d gdd d d ggd d d d gd d d d gd d d d gd d d d ggd d d dgd d d dgd d d d gd d d d gggZedd ddgd dddgdd ddggZe d eed feed feedfeed feedfeed fgddZe dd d ge dedddZddZdS))ndimage)dataN)measure) expand_labels)testing)assert_array_equalz-input_array, expected_output, expand_distanceg?cCst||}t||dS)N)rr)Z input_arrayZexpected_outputZexpand_distanceexpandedr_/var/www/html/venv/lib/python3.8/site-packages/skimage/segmentation/tests/test_expand_labels.pytest_expand_labelss rndimdistancec Cstjdd|d}t|}t||d}|dk}t||||||t}t |}||}|j dkr~t ||ks~t ||t} | j dkrt | |kst dS)a2Check some invariants with label expansion. - New labels array should exactly contain the original labels array. - Distance to old labels array within new labels should never exceed input distance. - Distance beyond the expanded labels should always exceed the input distance. @g?)lengthZblob_size_fractionZn_dim)rrN)rZ binary_blobsrlabelrrZastypeboolndiZdistance_transform_edtsizenpallAssertionError) rrZimglabelsr Z original_maskZexpanded_only_maskZ distance_mapZexpanded_distancesZbeyond_expanded_distancesrrrtest_binary_blobss      rcCs.ttd}ttjd}t||jkr*tdS)a Check edge case behavior to detect upstream changes For edge cases where a pixel has the same distance to several regions, lexicographical order seems to determine which region gets to expand into this pixel given the current upstream behaviour in scipy.ndimage.distance_map_edt. As a result, we expect different results when transposing the array. If this test fails, something has changed upstream. r N)rSAMPLE_EDGECASE_BEHAVIOURTrrr)r Zexpanded_transposerrrtest_edge_case_behaviours  r!) ZscipyrrZskimagernumpyrrZ#skimage.segmentation._expand_labelsrZskimage._sharedrZskimage._shared.testingrarrayZSAMPLE1DZSAMPLE1D_EXPANDED_3Z EDGECASE1DZEDGECASE1D_EXPANDED_3ZSAMPLE2DZSAMPLE2D_EXPANDED_3ZSAMPLE2D_EXPANDED_1_5Z EDGECASE2DZEDGECASE2D_EXPANDED_4ZSAMPLE3DZSAMPLE3D_EXPANDED_2rZ parametrizerrangerr!rrrrs      ,,**                                  (