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Help, please

397 Views 7 Replies Latest reply: Jan 31, 2013 1:21 PM by léonie RSS
Alec Thomas Calculating status...
Currently Being Moderated
Jan 31, 2013 5:56 AM

Anyone know how to make these weird lines go away?


OS 10.2.8

Macbook pro 2.4 core 2 duo, 8 gb memory

Aperture 3.4.3







  • Kirby Krieger Level 6 Level 6 (11,590 points)
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    Jan 31, 2013 6:08 AM (in response to Alec Thomas)

    Reboot.  Launch Aperture.  Export Originals to Desktop or somewhere convenient.  Open w. Preview (the built-in OS X viewer).  Are the bands there?


    What adjustment have you applied to the Images that are corrupted?


    Are you running out of space on your system drive?


    (PS, and relatively unimportant: in the future, put important information in your subject line, e.g.: "Adjusted Images corrupted with bands of color".)


    Message was edited by: Kirby Krieger

  • Kirby Krieger Level 6 Level 6 (11,590 points)
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    Jan 31, 2013 6:58 AM (in response to Alec Thomas)

    Alec -- a quick clarification.  You exported the _Originals_ to the desktop, opened them in Preview, and saw they were corrupt, but :

    Alec Thomas wrote:


    The originals, which are tucked away in the "Pictures" folder of my HD are not having this problem.

    How are you viewing the Originals?


    Have you had any problems with your video card?

  • léonie Level 8 Level 8 (46,700 points)
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    Jan 31, 2013 9:05 AM (in response to Alec Thomas)


    just some remarks in addition to Kirby's questions: great rectangular blocks of corruption are frequently caused by data corruption of jpeg previews.


    For example, these patterns I see in my library are due to defective jpeg originals:

    Screen Shot 2013-01-31 at 17.56.28.png

    Since your originals are raw and not jpeg, I'd check if the jpeg previews or thumbnails  need rebuilding.


    The weirdest thing is, I shot these a while back (in RAW with a Nikon SLR and they are 5+ mb per photo) and when I edited, cropped, sharpened, pulled shadows, all my basic stuff, it was fine. No bands.

    "a while back" - did you upgrade Aperture or your raw support since then? If you installed a new raw support, it might help to reprocess the raw images.




  • léonie Level 8 Level 8 (46,700 points)
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    Jan 31, 2013 1:21 PM (in response to Alec Thomas)

    in RAW with a Nikon SLR

    Thanks for your help, but on trying to reprocess the jpegs, it says none of them need reprocessing...

    But have you tried to reprocess the raw?  (From the "Photos" menu > Reprocess original)?


    And tried the other commands from the same menu? Generate Thumbnails, Update Previews (Hold down the options key, while you select the command to force the regeneration of the previews).


    Does it happen to all images, Alec, or only to a few?

    Do the same images sometimes look corrupted, and sometimes o.k.?

    If it is a problem, that occurs occasionally, but is not reproducable, I'd recommend a hardware check. Intel-based Macs: Using Apple Hardware Test


    It might help to boot once into Safe Mode - this will reset the graphics card. Aperture does not run in Safe Mode, so you have to reboot again.  Mac OS X: Starting up in Safe Mode


    Kirby, do you have any other suggestions?


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