repair corrupt jpeg

Discussion in 'Digital Photography' started by pit29, Jul 22, 2010.

  1. pit29 macrumors 6502a

    pit29

    Joined:
    May 23, 2006
    Location:
    The Golden State
    #1
    Hi all,

    Not sure whether I should have posted this to the Design and Graphics forum... Anyways.

    I've got a problem with a jpeg file that apparently is corrupted. It's not a memory card issue. (I got this file via email.) If I open it in Preview, I see the upper third, and the rest is grey. Photoshop doesn't open it at all (says it's corrupted), and GraphicConverter and Pixelmator do the same as Preview. Judging by it's size, the information should be there; pixel count is 2550 x 3510, and that's definitively portrait.

    Are there any tools to try to repair this file? (I'm on a Mac.) I can't get this file a second time, and, unfortunately, it's kinda confidential, so I cannot attach it here.

    I'd welcome any suggestions!
    Pit
     
  2. compuwar macrumors 601

    compuwar

    Joined:
    Oct 5, 2006
    Location:
    Northern/Central VA
    #2
    The file is likely missing information, so there's no recovery possible.

    Paul
     
  3. pit29 thread starter macrumors 6502a

    pit29

    Joined:
    May 23, 2006
    Location:
    The Golden State
    #3
    That's what I thought initially as well... Would that be possible, given that the file size looks big enough for a complete picture?
     
  4. FourCandles macrumors 6502a

    Joined:
    Feb 10, 2009
    Location:
    England
    #4
    If there's one corrupt byte/pixel at some point in the file, this can cause the remainder of the file to be unreadable, hence the "grey area".

    If you have access to a Windows machine, there seem to be many more utilities available for fixing corrupt jpegs than in OS X. I've used irfanview in the past but there are probably better alternatives.
     
  5. pit29 thread starter macrumors 6502a

    pit29

    Joined:
    May 23, 2006
    Location:
    The Golden State
    #5
    Thanks. Tried that, and any programs I could find on available windows machines... None worked, though.

    Guess I'll have to write that off.
     

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