On Thu, Jan 14, 2010 at 11:25 AM, Frank Gore <g...@projectpontiac.com> wrote:
> On Wed, Jan 13, 2010 at 7:36 PM, Frank Gore <g...@projectpontiac.com> wrote:
>> As I mentioned, all the commercial applications I've tried had no
>> problems determining the appropriate color space for these files. It's
>> only open source tools that are unable to, including Gimp.
>> So is this a bug? Or is Pentax really that crazy with their file
>> formats? They can't be that crazy if commercial applications have no
>> trouble with the files.
That's a fallacy, I'm afraid.

We don't know if their formats are crazy.
But they certainly appear to be undocumented. Until they are
documented, or someone reverse-engineers them, we are unlikely to gain
support for them in open-source software.

(OTOH, it could just be attached in the metadata. EXIF / IPTC support
is not complete yet.)

> Someone mentioned I should perhaps post examples of these files, and
> that's a fine idea. Wish I'd thought of it sooner. These were taken at
> seriously-reduced megapixels in the interest of file size. I figured
> the file format was more important than the quality of the picture.

> Here's one straight from my K-7, in Adobe RGB:
> http://picasaweb.google.ca/lh/photo/Wc8Lq42A20qRxDoTj1dNRQ?feat=directlink
> And here's another one in sRGB, taken immediately after the above:
> http://picasaweb.google.ca/lh/photo/c7_78WNLRXvEgHnmb6QM4g?feat=directlink

These could be quite helpful if someone is inclined to reverse
engineer it to spot the difference
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