Build requirements

[Chris Colbert]

Hey Tony,

Thanks for the report.

Can you paste the error you are getting so I know exactly what
decorator it is concering?, there may be a way to change it to work
with Python 2.5

There is some overlap between scipy.ndimage and the OpenCV stuff. But
realize, the OpenCV in the scikit are just wrappers for the OpenCV
libraries, of which you need at least version 2.0 (there were some
backwards incompatible changes made in 2.0). That said, my personal
experience is that OpenCV is much faster than the routines in ndimage.
I have timed the OpenCV 2D convlution at 100x - 1000x faster than
ndimage.

OpenCV is not a HARD requirement for the scikit. You can still install
it and use everything else without having the opencv libs on your
machine, but if and when you add them, the wrappers will "just work",
you wont need to rebuild the scikit.

Cheers!

Chris

On Thu, Nov 5, 2009 at 2:46 AM, Tony S Yu <tsyu80 at gmail.com> wrote:
>
> Hi,
>
> I tried running scikits.image on Python 2.5 and noticed that Python 2.6 is
> required. (I got some errors for enhanced property decorators, which were
> introduced in 2.6.) I'm not arguing against this requirement, but this error
> made me think it'd be nice to have a list of requirements.
>
> I've added a "doc" branch with a requirements list. I don't really know the
> internals of the scikit, so the list is pretty rough.
>
> On a side note, I'm curious about the overlap of functionality in the opencv
> module and scipy.ndimage. Since scipy is already required, is there an
> advantage to using the duplicated functions in scikits.opencv? (Most of the
> functions in that module have no ndimage counterpart, but I'm curious about
> the ones that do.) Similarly, some of the filters provided by CellProfiler
> (listed as suggested code to adapt on the "How to contribute" page) have
> counterparts in scipy.ndimage.
>
> Cheers,
> -Tony
>
>