10 Replies Latest reply: Mar 18, 2013 9:02 AM by Steven B. Weinberg
Steven B. Weinberg Level 1 Level 1 (0 points)

Screen Shot 2013-03-10 at 4.18.50 PM.png

All of my photos are referenced to a library on my hard drive. I have rebuilt the library after Aperture has crashed. I have deleted the photos and reimported, and attempted to update the preview. The problem persists.

 

I have the full Nik Software plug in suite, as well as the Photomatix plug-in and Photomatix stand alone product.  The above problem does not seem to be isolated to plug-in use.  The problem exists for both RAW and Jpegs. 

 

Can anyone tell me what is going on and how to fix it? 


Aperture 3, Mac OS X (10.7.5)
  • 1. Re: Some of my photos in Aperture appear as "hot pixels."
    léonie Level 9 Level 9 (51,645 points)

    This looks like corrupted image files. Have you checked, if the original master image files are still o.k.? Since your images are all referenced, you can use "File > Show in Finder" to access the original files in question. Do they display correctly in Preview?

  • 2. Re: Some of my photos in Aperture appear as "hot pixels."
    Steven B. Weinberg Level 1 Level 1 (0 points)

    The images appear corrupted in Preview.  I have corrupted images taken with two different cameras and two different memory cards.  What could be causing the corruption and what could be the solution? 

     

    -Steven

  • 3. Re: Some of my photos in Aperture appear as "hot pixels."
    léonie Level 9 Level 9 (51,645 points)

    The images appear corrupted in Preview.

    That is no good news. They are all on the same hard drive, right? I'd run a disk check on that drive with Disk Utility and make a backup of the drive, just in case it might be failing.

     

    How did you import from your cameras? Were all images imported using the same card reader or the cable?

    Do you have backups of the original files, that you can compare with your current versions, so that you can find out, when the corruption happened?

  • 4. Re: Some of my photos in Aperture appear as "hot pixels."
    Steven B. Weinberg Level 1 Level 1 (0 points)

    I keep the pictures on my computer hard drive as well as making a back-up on an external drive using time machine.  At least one of the pictures on both the hard drive and the external hard drive, going back to the very first back up, is corrupted. 

     

    I have not run a disc utility yet on either the computer's hard drive or the external hard drive.

     

    I import the pictures using the card reader that is built into the side of my iMac. 

  • 5. Re: Some of my photos in Aperture appear as "hot pixels."
    léonie Level 9 Level 9 (51,645 points)
    At least one of the pictures on both the hard drive and the external hard drive, going back to the very first back up, is corrupted.

     

    But are there image files, that are o.k. in the backup, but now are corrupted? Then that excludes the card reader as the source of the problem. I'd run a disk check.

     

    (15800)

  • 6. Re: Some of my photos in Aperture appear as "hot pixels."
    Kirby Krieger Level 6 Level 6 (11,915 points)

    Also confirm that the camera sensor works reliably.  Just to be sure.

  • 7. Re: Some of my photos in Aperture appear as "hot pixels."
    léonie Level 9 Level 9 (51,645 points)

    Also confirm that the camera sensor works reliably.  Just to be sure.

    Good idea, Kirby, but sadly, that kind of corruption does not only happen to camera sensor generated image files. I just discovered a similar corruption on a stitched panoramic shot (jpeg) from 2006:

    Shanghai.jpg

    It is broken in all backed up libraries, back to the first from 2006, only the backup of the original master files is o.k.

  • 8. Re: Some of my photos in Aperture appear as "hot pixels."
    Steven B. Weinberg Level 1 Level 1 (0 points)

    I ran a disc check on my computer hard drive and everything is ok.

     

    I ran a disc check on my external hard drive and received a message that it could not be repaired and I need to back everything up. 

     

    At least one of the photos is corrupted in the original back up. All other photos are ok in the original back up.  That means the other photos became corrupted at a later date. 

     

    It sounds like my external hard drive crapped out.  But, if photos are getting corrupted on my computer hard drive, what do I do?

  • 9. Re: Some of my photos in Aperture appear as "hot pixels."
    léonie Level 9 Level 9 (51,645 points)

    It sounds like my external hard drive crapped out.  But, if photos are getting corrupted on my computer hard drive, what do I do?

    You need to rescue the data from your external  while the drive is still working and to replace it as soon as possible. I would not trust it with any important files any longer.

     

    my computer hard drive

    Do you mean your system drive? They will fail eventually. Every three or four years I had to replace the system drive in one of my machines. It helps to be prepared for such an emergency and to have a good backup strategy. I always have a Time Machine backup and a bootable clone of the system drive, so that I can boot from a second drive, should the system drive fail. And the most important documents are mirrored in iCloud and on a second laptop.

     

    At least one of the photos is corrupted in the original back up.

    How old is this photo? This can be a coincidence. Sometimes the cards will not be read correctly.

  • 10. Re: Some of my photos in Aperture appear as "hot pixels."
    Steven B. Weinberg Level 1 Level 1 (0 points)

    My iMac was purchased in November 2011 so it is pretty new so I don't think the system hard drive is broken . . . yet.

     

    All of the photos that are corrupt were taken on March 6, 2013. Again, the corrupt photos were taken with two different cameras and saved on two different memory cards and transferred to the computer using the cardreader that is built into the side of the iMac. 

     

    Presumming that I have corrupt files, what do I do to prevent the corruption from spreading?

    Do I simply delete the corrupt file? 

    Do I have to worry about something systemic, that is, the entire computer is "infected"? 

    How do I determine what caused the corruption, i.e., the computer itself or the memory cards?