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yet another Microsoft blogger

 Saturday, May 17, 2008

DNG Codec for Vista

Wohoo! At long last there is now a DNG Codec for Vista! Thanks Trevin for the pointer.

What does this even mean Omar?

Glad you asked.

Vista supports a "pluggable" system for Camera Vendors to produce codecs (code that understands a proprietary file) and represents it inside Windows Vista like a file that Vista understands (Jpeg, PNG, Tiff, BMP).

Why is this important?

Digital SLR cameras have a superior method of capturing photos called RAW format. Think of this as a sort of digital negative. It is usually a Lossless (no compression) and unprocessed version of the Photo which allows you to make significant changes to the image (think developing) without any loss in the original image after the changes are made. With JPEG (the typical format most digital cameras take) you are in a compressed format already and any changes typically result in information being thrown away.

Shooting RAW has some big advantages over JPEG (and some drawbacks). Mainly:

  • Uncompressed Images
  • Unprocessed
  • White Balance can be altered (if you screw it up or want to change it)
  • more data, typically 12 or 14 bit color (vs 8 bit for JPG)
  • Can correct exposure

DNG is a format Adobe invented to create a sort of universal RAW format. You can convert images from many camera vendors into DNG. The benefits are that DNGs can often be compressed more than the native RAW files (my Panasonic Point and Shoot created 16MB RAW file and in DNG format they were under 7 MB) and you can alter the images in programs like Lightroom, Photoshop without the need for "sidecar" files (I'm not even going to go into that).

The benefits of having a Vista Codec are that any applications written to support the Windows Imaging Component (WIC) can no read/edit those files. Examples of this are:

  • Windows Vista Shell
  • Windows Photo Gallery (Vista only)
  • Windows Live Photo Gallery (Vista and XP)
  • Expression Media (Vista and XP)
  • any .NET 3.0 application (Vista and XP)

This is great news. Thanks Adobe for finally doing something useful :-). Now if you would just fix Adobe Reader so that thumbnails consistently render in the Vista Shell.

Posted Saturday, May 17, 2008    Permalink    Comments [5]  View blog reactions

 

Saturday, May 17, 2008 1:18:27 PM (Pacific Standard Time, UTC-08:00)
I wish the codec worked on Vista x64. I'm hoping that they'll support it on 64 soon, since the next release of photoshop is supposed to be 64 bit native. Upgrading my current desktop to 8GB of RAM cost barely 140.00, so hopefully everyone will start pushing vendors to support x64 soon.
Bill
Sunday, May 18, 2008 12:33:06 AM (Pacific Standard Time, UTC-08:00)
Bill beat me to it -- Adobe's record on x64 is pathetic.
Tuesday, May 20, 2008 12:20:20 PM (Pacific Standard Time, UTC-08:00)
More "joy of victory. agony of defeat here." I'd bookmarked this post so I could install the codec only to be greeted with the "this is for 32bit windows" dialog. FAIL!

I suppose I'll leave feedback since they state "The DNG Codec will move from a release candidate to a shipping version once sufficient feedback is received." Sort of a bummer, but I've made it this long without it.

Sort of reminds of the Canon RAW codec for Vista. I remember getting a dialog inside of gallery which after clicking through a couple different sites took you to a page telling you the code wasn't released yet.
Friday, May 23, 2008 8:25:05 AM (Pacific Standard Time, UTC-08:00)
"What does this even mean Omar?"
You are such nerd Omar. Grow up.

JJ
Wednesday, May 28, 2008 1:11:02 PM (Pacific Standard Time, UTC-08:00)
We were the first to market with a DNG codec for Vista, and ours has supported 64 bit from the beginning.

We also have 64 bit codecs for NEF and CR2.

http://www.ardfry.com/dng-codec
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