On Sunday, November 09, 2014 11:39:53 AM Aneesh Sathe wrote:
> Yes, Images does read it okay but only if i cut out the substack. If i
> don't, then it interprets the three channels as a time dimension, which
> isnt a pain at the moment but will be if i start using it for work.

Hmm, that sounds like an annotation problem.

> I realized that both the convert and the g[:] would slow me down but the
> hist function just wouldn't work without that kind of dance. Also,
> graythresh (http://www.mathworks.com/help/images/ref/graythresh.html) uses
> reshape to make it all one image which might also add to speed.
> 
> The pull request is well and good but personally i would rather have a
> dedicated image histogram function like
> imhist: http://www.mathworks.com/help/images/ref/imhist.html
> which would give histograms based on input images. To me that's the only
> way to make life easier. ....maybe i'll write one :)

imhist is necessary in matlab largely because hist works columnwise; in a 
sense, Julia's `hist` is like imhist. Is there some specific functionality 
you're interested in? There's no reason Images can't provide a custom version 
of `hist`.

> Something about Images: do you think it possible to use the bio formats'
> .jar file to import images from a microscope format to Images?
> Opening a microscope format image file in the relevant software and then
> exporting it as tiff takes too long and i'd rather be able to access the
> images directly.

Yes, expansion of Images' I/O capabilities would be great. I've wondered about 
Bio-Formats myself, but not had a direct need, nor do I know Java (but see 
JavaCall.jl, if you haven't already).

The other way to go, of course, is Julia native support. Our support for NRRD 
is a reasonable model of this approach. However, the reason we use ImageMagick 
is because the reality is that there are a lot of formats out there; Bio-
Formats would fill a similar need for vendor-specific file formats. Out of 
curiousity, what's the original format you're using?

--Tim

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