great news with regards to OpenCV support...

[Zachary Pincus]

Fantastic! This is great news.


On Oct 8, 2009, at 3:37 PM, Chris Colbert wrote:

> At least I think it is great!
>
> I've managed (with the help of the community) to get ctypes function
> pointers to play nice with cython.
>
> I've also re-implented the IplImage struct in cython and figured out
> how to populate the struct with numpy stride information and the numpy
> data pointer.
>
> This all means that we now have the ability to to call OpenCV
> functions with plain numpy arrays as arguments, and the array gets
> modified in place!. And since i'm using ctypes to grab the function
> handle, OpenCV is not required to be on the users machine during build
> time, but if and when  they install the opencv lib, they automagically
> work!
>
> I've a got a working (albeit ugly) example attached. You'll obviously
> need opencv installed if you want to test it.
>
> Just use PIL to open any image on your system then dump it into a
> numpy array then call testnumpy.test(arr) on that array.
>
> Dump the array back into a PIL image and call show() on it. Voila!
> your image has been guassianed blurred courtesy of OpenCV.
>
>
> So, now that I have the logistics of this figured out and I know it
> actually works, looks like I'll have plenty to implement during the
> upcoming sprint.
>
> Cheers!
>
> Chris
> <testnumpy.pyx>