Astronomy work with Krita

[Stephen Williams]

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I'm planning to do so image stacking/composition plugins for some
image processing application in order to support my Astro-photography
habit without having to stoop to Windows. I already have code to
align and stack images, so mostly I'm looking for a tool that can
carry this software as a plugin. I'd also provide FITS plugins.

I've rejected gimp because of its weak (non-existent) support for
high bit depths. Images from astronomy cameras is typically 16bits,
and after stacking can be higher. So I need support for at least
16bits per component.

Cinepaint is a possibility, but its mac port is pretty weak. I want
to natively support Mac and Linux.

Photoshop does not exist for Linux. I'd be willing to spend some
money, and I do most of my astrophoto work on mac, but I would like
the option to run under Linux. Oh well.

So Krita survives the major cuts in my mind. (I'm having trouble
getting kde4 and koffice2 compiled for my Mac, but I believe it
is doable.) But is this really a reasonable thing for me to want
to do with Krita? Here is some more detail:

The images I work with are RGB48 from a Nikon D80 camera, so they
are fairly large. Then I will want to build up a stack of them,
typically a half dozen or dozen images, and also combine a few
dark field shots. The processing would amount to aligning each
image, adding them to a stack, subtracting out the dark-field
images, then tone-mapping the results.

I have been thinking along the lines of importing the images into
an image stack layer group, and the dark fields into another layer
group. Within each layer group, it would be nice to be able to turn
individual frames on/off.

So does this all sound doable in Krita? I expect to write plugins
to do stacking and dark field correction. (And of source I/O of
FITS files.)

- --
Steve Williams                "The woods are lovely, dark and deep.
steve at icarus.com           But I have promises to keep,
http://www.icarus.com         and lines to code before I sleep,
http://www.picturel.com       And lines to code before I sleep."
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