voxel_connectivity_graph and contacts can not be applied in 2D label about connected-components-3d HOT 5 CLOSED

Solve it by expanding 2D to 3D by adding one axis

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I wasn't sure if anyone was going to use voxel connectivity graph in 3d let alone 2d. I'm glad you found it helpful! It was made for a very specific purpose I had in mind (and still have yet to do). I'll consider fixing it up in 2D.

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Can you share an example of the code that broke? Nevermind, I think voxel_connectivity_graph should work, but I can see why contacts and region_graph are breaking in 2D.

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Can you share an example of the code that broke? Nevermind, I think voxel_connectivity_graph should work, but I can see why contacts and region_graph are breaking in 2D.

Thank you for your reply. A 2D input array with dimension (h,w) can produce such a bug. However, I make contacts work by expanding one axis using such a command: a = np.expand_dims(a, axis=2).

I develop an greedy algorigm to convert a segmentation map with a lot of labels to a map with specific number of labels, and I find your contacts is useful to find the neighbor for each label

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The new version of cc3d should have this fixed. Let me know if you need more help!

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