[SciPy-User] 2D phase unwrapping

Ralf Gommers ralf.gommers@googlemail....
Sat May 12 04:58:17 CDT 2012


On Fri, May 11, 2012 at 9:29 PM, Gregor Thalhammer <
gregor.thalhammer@gmail.com> wrote:

> Hi all,
>
> I have beend searching for an implementation for phase unwrapping in 2D
> (and possibly also 3D). I found this old thread in the numpy mailing list
>
> http://mail.scipy.org/pipermail/numpy-discussion/2008-November/038873.html
>
> which mentions the C implementation from GERI:
> http://www.ljmu.ac.uk/GERI/90202.htm
>
> While searching I found remarks by the authors that these algorithms have
> been incorporated into scipy, however I am unable to find them in current
> scipy or numpy. Am I missing something obvious?
> Instead I found this wrapper: https://github.com/pointtonull/pyunwrap
> This seems to be based on a wrapper already mentioned in the above
> mentioned discussion, but the links mentioned there are dead. I added some
> setup.py, and with some small modifications I managed to compile the
> extension both on OS X and Windows.
>
> I would like to see these algorithms included in scipy, and I am willing
> to work on this.


Great!


> So now my questions: In the old numpy-discussion thread licensing issues
> are raised, can anybody tell more? On the GERI homepage they distribute
> their code under a non-commercial-use license, but the authors seem to
> agree on incorporating their code into scipy.
> Except from this, what else would be required?
>

The emails about the license seem to be very clear to me, there's no issue.
So all it would take is someone submitting a complete wrapper (with the
normal requirements on docs/tests). The only things to decide are then: do
we want it in scipy (+1 from me), where to put it and what the API should
look like.

Ralf
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