skimage and opencv

[Dipankar Ganguly]

I have another question...
If I use SciPy functions within Python 3.5 code how hard will be convert 
that code using JPython?

On Friday, 28 December 2012 00:25:07 UTC-8, Emmanuelle Gouillart wrote:
>
>         Hi Fran�ois, 
>
>         that's an excellent question, and not a troll :-). Opencv is a 
> very powerful library, but it focuses primarily on computer vision 
> (feature detection and extraction, classification, ...), as opposed to 
> image processing in general (with other tasks such as denoising, 
> segmentation, ...). 
>
>         The other big difference is that skimage builds on numpy 
> ndarrays, and uses the full power of the numpy API (including of course 
> the basic facilities for processing arrays as images that come with 
> numpy), as well as some of scipy functions (you could have added 
> scipy.ndimage to your list -- a few functions in skimage are wrappers 
> around scipy.ndimage, that exist for the sake of completeneness). One 
> important consequence is that algorithms working for 3-d or even n-d 
> images can be easily implemented in 3-d/n-d in skimage, whereas opencv is 
> restricted to 2-D images (as far as I know). Thanks to the use of numpy 
> arrays, the API of skimage is also quite pleasant for a numpy user, more 
> than the API of opencv. 
>
>         A related difference is that skimage is written in python and 
> cython, whereas opencv is a C++ library. The two libraries attract a 
> different crowd of developers, and a Python/Cython toolkit based on numpy 
> arrays is easier to develop and maintain inside the Scientific Python 
> ecosystem. 
>
>         I'm sure that other devs/users will have things to add to this 
> discussion! 
>
>         Cheers, 
>         Emmanuelle 
>
> On Thu, Dec 27, 2012 at 02:06:08PM -0800, Fran�ois wrote: 
> >    Hi users and devs, 
>
> >    It came to my knowledge that another python library (based on C++ and 
> C 
> >    codes) for image processing exists too : opencv 
> >    I understand that numpy intregrates some basic features and we need 
> some 
> >    advanced features but I have the feeling that skimages is redoundant 
> with 
> >    opencv in some ways. 
> >    What's the position of skimage about that? (Don't read this question 
> as a 
> >    troll but like a real question). 
> >    I mean that similar features exist in both. Would not be possible to 
> >    reuse/integrate opencv or merge? what's the reason for keeping them 
> apart? 
>
> >    My observation is there is 4 libraries to manipulate images: 
> >    * PIL 
> >    * numpy 
> >    * skimages 
> >    * opencv 
> >    That's a lot. 
>
> >    Cheers, 
>
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