scikit-image/scikit-image — pull request #1254 by matejak (2014-12-02 21:48:23+00:00)
Title: Label3d

This pull request features two things:

1. 2D labelling refactoring. This has resulted in:
* Higher readability of the code by breaking large functions into smaller ones.
* More exhaustive documentation of the code.
* Better performance (I have observed a 50% time reduction in 2D).

2. Addition of support for 3D arrays (including tests)

And as a bonus, an undocumented limitation has been removed (degenerated 2D arrays of shape (x, 1) where x > 1 didn't work with the algorithm). Tests cases for this were also added.

This PR #1208 has been there before and grew quite long as I have progressed to satisfy requirements of @stefanv and @jnl. And as these gentlemen have suggested, I have closed it and created this new one.