the segmentation number is 0 when the segmentation array is the same object

[jingpengw]

fragments_chunk, seg_num = cc3d.connected_components(
                    np.ones(3,3,dtype=np.uint32), connectivity=6, return_N=True
                )

the seg_num is 0, which should be 1!

[william-silversmith]

Oh dang, that's a great catch. Thank you Jingpeng! I recently introduced some early-exit changes but forgot to account for size_t& N in some of them.

In the mean time, you can use seg_num = np.max(fragments_chunk)