ANN: imageio v1.0

Juan Nunez-Iglesias jni.soma at gmail.com
Fri Nov 14 22:48:52 EST 2014


Hi Almar,

Thanks for this. Our own IO is much improved thanks to a few PRs by Steven
Sylvester, so I care a little bit less than I would have if this had come a
few months ago. =P

Generally, though, I do agree with you that a dedicated package might be
the better spot for this. Part of Steven's improvements was to make PIL a
dependency. If imageio is easy enough to install, and complete enough, it
might replace that dependency. What I'm looking for in an IO package is
proper treatment of less-common data types that are nonetheless common in
scientific imaging, such as uint16 and 3D tiffs. (Prior to Steven's PRs,
skimage did a poor job with those.) Can you comment on that?

Thanks for the post, and for the library! -- I think it will lead to good
places. =)

Juan.

On Fri, Nov 14, 2014 at 9:40 AM, Almar Klein <almar.klein at gmail.com> wrote:

>
>  Thanks for the announcement!  Can you expand on how you see the
>> eco-system of scikit-image, imread and imageio interacting?
>>
>
> Since imageio has a pretty good plugin system, it could be a good place to
> implement io for all the weird scientific file formats that exist. Next to
> imread(), volread(), etc. imageio also provides the read() function, which
> returns a reader object specific to the plugin. This reader object can have
> additional methods and may yield other data then just 2D/3D numpy arrays if
> this makes sense for the format.
>
> So I suppose I am hoping for skimage devs to embrace imageio and help move
> it further.
>
> With that, I suppose skimage could focus on the processing rather than the
> io, since ideally, we'd have one library for processing images, and one for
> reading/saving images.
>
> <rant>
> Developers tend to have a fear for dependencies. I understand this, and I
> try to minimize dependencies myself, but reading/writing images is a task
> that warrants a standalone package IMO. It troubles me a bit that different
> libraries are each rolling their own image io  functionalities.
> </rant>
>
> As for the imread package: Zach and I considered it when discussing plans
> for imageio, but imread is based on C++, which is harder to maintain and
> makes it a harder dependency. imageio is pure Python with ctypes bindings
> to some libs that are auto-downloaded.
>
> - Almar
>
> PS: some fancy stuff that imageio can do which might be interesting for
> skimage users: stream images from webcam, export visualizations to animated
> gif or mp4.
>
>
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