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Old Jun 26, 2007, 11:51 AM   #1
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Can any body help?! I have a canon 400D and have taken some pics in raw format. These pics I can't view on the computer- win XP Ive tried to use them for photo stitch, they won't open. Please help!!

Thank you
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Old Jun 26, 2007, 12:00 PM   #2
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RAW is unprocessed data from the camera's sensor and is proprietary to a manufacturer.

This data has to undergo a complex demosaic process in order to get red, green and blue values assigned to each pixel location. It's not a standard image format.

Some viewers can convert raw files so you can display them. But, they are using a demosaic (conversion from raw to a viewable format ) process to do it, and they have to support your model's raw files directly. Algorithms used for this conversion process vary between vendors.

Your Canon shipped with software called Digital Photo Professional that can convert your raw files to a standard viewable format (like jpeg or tiff) for further processing. You can see this software described in your model's review here:

http://www.steves-digicams.com/2006_...elxti_pg6.html

There are many third party software packages you can also use to convert your raw files to another format, and many of them are free.

Here are a couple of free raw converters:

http://ufraw.sourceforge.net/

http://www.rawtherapee.com/index.html

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Old Jun 26, 2007, 12:09 PM   #3
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P.S.

Microsoft has an add-on you may want to look at, if you want the ability to browse folders containing raw files using Windows Explorer. Basically, it's using software developer kits supplied by the camera manufacturers to let you see the images.

http://www.microsoft.com/windowsxp/u...photo/raw.mspx

Some image browsers can also display them (Picasa, Faststone Image Viewer and more).

But, you're still going to need to convert the images to a standard image format (like jpeg or tiff) for further processing and viewing by most applications.

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Old Jun 26, 2007, 12:37 PM   #4
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Thanks a lot for the reply JiMC. I'll follow your advise.
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