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Re: Recover corrupted JPG image files



On Sat, 2 Sep 2006, Mike van Hoof wrote:

> i've got a CD with some corrupted image's on it, and was wondering if
> there is anyone who knows a tool (linux or windows... but free) wich can
> recover these (or parts of it).

'Twould be a tough tool to write for jpegs without row markers.
Compression squeezes out redundant information.
If one could pick out the boundaries of valid MCUs,
there would still be the problem of lining them up.

For jpegs with row markers, one might be able
to write a tool that would split an image into
one image for each marked group of rows.

One could then eyeball the results of
decompressing each of the small images.

I think that there are tools that will
let you losslessly merge compatible jpegs.

-- 
Mike   hennebry web cs ndsu NoDak edu
"it stands to reason that they weren't always called the ancients."
                                                      --  Daniel Jackson


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