[HDR-photo] Measuring *really* small values.

[Blochi]

Hi Dan,

The color picker in Photoshop CS3 returns 0.0004 for the rectangle,  
but 20 for the outside frame (which is odd, because it still fully  
black). Hard to tell what it is supposed to be.

Blochi

On Jun 1, 2007, at 8:41 AM, Dan Reetz wrote:

> Hi all,
>
> I have a Radiance encoded HDR file, and I want to know the values of
> the pixels within. The problem is that they seem to exceed the
> 3-decimal place accuracy of the tools that I usually use. (Meaning, if
> I use the Info tool in Photoshop or HDRview, they show up as all
> zeros).
>
> Can anyone suggest a tool that can accurately read back the values in
> the center rectangle of this image?
>
> http://danreetz.com/for_HDR-photo/4cdm.hdr (170kb)
>
> Thanks,
> Dan Reetz
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