DNG thumbnail colors are wrong - RAW Shooting and Processing - CHDK Forum

DNG thumbnail colors are wrong

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DNG thumbnail colors are wrong
« on: 13 / February / 2009, 02:03:55 »
I recently switched over from using the CRW raws to DNGs with my SD700 IS. Using CHDK r705.  I've noticed that the DNG thumbnail previews have the wrong colors -- specifically the whites are off.  Yet, when you open up the jpeg and dng in photoshop, they look basically the same.  After Photoshop has tweaked the DNG settings and re-saved it, the thumbnail is then correct.  Bug?

Attached are samples of what I'm talking about.
PowerShot SD700 IS


Offline ewavr

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Re: DNG thumbnail colors are wrong
« Reply #1 on: 13 / February / 2009, 06:10:52 »
Correct colors in thumpbnail requre additional calculations - DNG saving time will be significantly increased.
If anyone can offer fast algorithm, it will be included in CHDK.


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