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Re: advice for data recovery

Dave Stevens wrote, On 11/10/2008 04:56 PM:
Hello All,

I am trying to recover .jpgs that were on a SATA drive that was formatted by mistake. No backup of course. Foremost has done a wonderful job of recovering several tens of thousands of files. Unfortunately many of them are either irrelevant (cached web fragments, etc.) or damaged. The most common type of damage is shown when trying to view them in Nautilus, when I get a message saying, "unsupported marker type."

It seems about 30% - 40% of the files recovered are damaged in this way.

Assuming that all the data is really there but you have extra on the end, then you might be able to use convert to read the input and only output picture data.

identify might be able to help you sort images from not images, and corruption.

They aren't my images and I am not able to gauge what is worthwhile or not but I would like to do some triage by only considering those of a certain minimum size (easy to do) and not damaged (no idea.)

So does anyone know of a program I can use to only copy files that are not damaged? I can sort out the teenies, but don't see how to proceed after that.

man ImageMagick
man identify
man convert

Todd Denniston
Crane Division, Naval Surface Warfare Center (NSWC Crane)
Harnessing the Power of Technology for the Warfighter

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