[Insight-users] ITK images to floating-point HDR formats

[Jim Miller]

Zachary,

I am not familar with the HDR formats and tools.  When I looked at the HDR
stuff a few years ago, I just re-implemented the reported algorithms :)

If you can some details on these formats, we could consider adding them to
ITK.  Our only high dynamic range formats are 16 bit png/tiff and then the
floating point variants of meta, nrrd, analyze(?).  People are introducing
new microscope formats which may be 16 bits but I suspect they are not
higher than that.

Jim

On 5/2/06, Zachary Pincus <zpincus at stanford.edu> wrote:
>
> Hi folks,
>
> I'm interested in using some visualization tools developed for
> "HDR" (high dynamic range) images from the computer graphics world.
>
> Unfortunately, the HDR image formats developed by these people, now
> increasingly standard for HDR imaging, are pretty unrelated to the
> formats for medical imaging that have supported high dynamic ranges
> for years.
>
> My question is whether anyone knows any intermediate floating-point
> formats that both ITK and some HDR conversion tool or another can
> read. Right now, I've can write unsigned shorts out from ITK as
> tiffs and can convert them to Radiance HDR formats via ra_tiff; I
> unfortunately can't find an analogous path for floating-point images.
>
> Anyone have any experience/leads/thoughts in this direction? Tools
> for nrrd images perhaps?
>
> Zach
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