IPhoto thumbnails full of digital artifacting after Rebuild

Hi,
I rebuilt "all of the photo's thumbnails" in iPhoto and now the thumbnails look terrible! The photos themselves are fine when enlarged.
Should I try rebuilding again to correct this?
I am using iPhoto 9 version 8.1.2 (424)
Thanks,
kevin

Well, I tried that and many (not all) of the thumbnails still look like an 80's video game. Why did I do this in the first place?
Any other suggestions?
Thanks,
kevin

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My iphoto 08 is quitting unexpectedly after uploading photos from two different cameras. This happened a few times last month and after the third time iphoto would not open at all and said that my library was damaged/inaccessible. I followed the directions on this forum and rebuilt the library using iphoto manager. That seemed to do the trick but after the second photo import, iphoto started quitting unexpectedly again. I'm worried that there is still a problem unsolved by the rebuilding.
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Welcome to the Apple Discussions. Have you tried deleting the iPhoto preference file, com.apple.iPhoto.plist, that resides in your User/Library/Preferences folder.
NOTE: If you're moved your library from its default location in your Home/Pictures folder you will have to point iPhoto to its new location when you next open iPhoto by holding the the Option key. You'll also have to reset the iPhoto's various preferences.
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TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto (iPhoto.Library for iPhoto 5 and earlier versions) database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've created an Automator workflow application (requires Tiger or later), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. There are versions that are compatible with iPhoto 5, 6, 7 and 8 libraries and Tiger and Leopard. Just put the application in the Dock and click on it whenever you want to backup the dB file. iPhoto does not have to be closed to run the application, just idle. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.
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I'm guessing this is as it should be?
That looks good, your original image files are still in the iPhoto Library but need reconnecting.
I've tried rebuilding and repairing the iPhoto database by holding down Option/CMD when opening iPhoto and selecting options 3, 4, 1 and 2 in that order but still hasn't helped.
Then try the last resort and rebuild with iPhoto Library Manager. You can download it here, the free trial will suffice for this: Fat Cat Software – iPhoto Library Manager
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Blank thumbnail in iPhoto after rebuilding thumbnail for several times

I have read several suggesdtion to rebuld the thumbnail in iPhoto to recover the picture in iPhoto. I have made several attempt to rebuild through depress Option and Command key ro lauch iPhotos and tick the relevant box to rebuild the thumbnail. The problem of blank thumbnail remians unresilved,.Blank and black in the event screen and photo screen is dotted line and gray in the phoito. Pleasse help. Thanks

download the version of iPhoto Library Manager - http://www.fatcatsoftware.com/iplm/ - taht works with iPhoto '08 and use it's rebuild command to creted a new library leaving the existing one intact if needed in the future
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There are several possible causes for the Black Screen issue
1. Permissions in the Library: Back Up and try rebuild the library: hold down the command and option (or alt) keys while launching iPhoto. Use the resulting dialogue to rebuild. Include the option to check and repair permissions.
2. Minor Database corruption: Back Up and try rebuild the library: hold down the command and option (or alt) keys while launching iPhoto. Use the resulting dialogue to rebuild.
3. A Damaged Photo: Select one of the affected photos in the iPhoto Window and right click on it. From the resulting menu select 'Show File (or 'Show Original File' if that's available). Will the file open in Preview? If not then the file is damaged. Time to restore from your back up.
4. A corrupted iPhoto Cache: Trash the com.apple.iPhoto folder from HD/Users/Your Name/Library/ Caches...
5. A corrupted preference file: Trash the com.apple.iPhoto.plist file from the HD/Users/ Your Name / library / preferences folder. (Remember you'll need to reset your User options afterwards. These include minor settings like the window colour and so on. Note: If you've moved your library you'll need to point iPhoto at it again.)
If none of these help:
As a Test:
Hold down the option (or alt) key key and launch iPhoto. From the resulting menu select 'Create Library'
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Lost all my photos in iPhoto after rebuilding iPhoto libraries is there a way to get them back?

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Hi there,
Is there anyone who can help me with this:
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Sorry but you're post is not very clear. But to rebuild thumbnails:
Back Up and try rebuild the library: hold down the command and option (or alt) keys while launching iPhoto. Use the resulting dialogue to rebuild. Include the option to rebuild the thumbnails. It can take 3 or 4 goes for this to work

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1. make a back up. No matter how long it takes.
Most Simple Back Up:
Drag the iPhoto Library from your Pictures Folder to another Disk. This will make a copy on that disk.
Slightly more complex: Use an app that will do incremental back ups. This is a very good way to work. The first time you run the back up the app will make a complete copy of the Library. Thereafter it will update the back up with the changes you have made. That makes subsequent back ups much faster. Many of these apps also have scheduling capabilities: So set it up and it will do the back up automatically.
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2.
Option 1
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Regards
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Hello,
I recently reinstalled my system fresh and ending up exctracting master copies of my old iphoto library (show package contents > masters). I imported all of those pictures into the new iphoto via file import. This was just fine (it took awhile but it worked. I haven't been able to verify with ALL of my pics survived the jump). Anyway my question or problem is when looking through the pictures (under "photos" on the left side bar). Most of the pictures work, but there seems to be like blasts of pictures that have a preview of 1 pic or several (extracted from a specific event) and then once opened displays an entirely different event. I'm not sure if there is a way to fix a problem such as this.
I did some reasearch on here and there was a similiar problem not the same I believe. ikarus84 mentioned a solution to that problem not sure if this will work for me, or if this was out of context.
"Finally I found the solution myself.
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Thumb64Segment.data,
ThumbJPGSegment.data and
the folder "Thumbnails"
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Rebuild all of the photo thumbnails
https://discussions.apple.com/message/17019661?searchText=iphoto%20thumbnails%20 not%20correct#17019661
any help will be apprciated.
Thanks.

Back Up and try rebuild the library: hold down the command and option (or alt) keys while launching iPhoto. Use the resulting dialogue to rebuild. Include the option to rebuild the thumbnails. It can take 3 or 4 goes for this to work
Regards
TD

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I am running iphoto version 5.0.4 and some of my pictures have the wrong thumbnail linked to them.
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Hi diverdan,
a rebuild should have fixed the thumbnail problem. Since you have so few photos in your library, you can create a new library and have new thumbnails created when the images import.
Close iPhoto
Rename your messed up iPhoto Library to "iPhoto Library_old"
Drag this library to your desktop
Hold down the Option key and launch iPhoto
This is the window you will get
Create a new library or choose a library to open
Choose to create a new library
Once this new empty library is open it is time to import the images from your old library
Go to File>add to library
Navigate to the old library on your desktop and highlight it in the window, then click the "open" button.
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Your images will be imported in nice dated rolls. (make sure your view is set to sort by rolls to see it) There are a couple of caveats to this. You will get rolls named "Originals" These rolls will contain your video clips and your original images that you had edited. If you had RAW files they would be in those rolls too (I don't do RAW, so I don't know for sure) Delete what you don't want from those rolls. You will also get the jpeg pointer files to your video clips imported. They will just be jpegs and will not point to the video clips anymore as iPhoto made new ones when the clips were imported again. You can delete those. they should be in a roll right next to the newly imported video clips so they are not hard to find. The thumbnail files don't get imported as iPhoto makes new ones when the images are imported.
Once all you images have been imported, check through the library and make sure everything looks ok.
You can now start making your Albums, and do your keywords or any other organizational steps.
You can also delete the old library on the desktop.
It is also a good time to backup this new library to CD/DVD by burning the iPhoto LIbrary folder in the Finder, or copying the iPhoto Library folder to an external drive formatted for Macs, or copying the iPhoto LIbrary folder to an iPod.
Good luck!

Thumbnails can not be viewed after upgrade & update to 08 (7.1)

after upgrading to 08 and updating software and opening it I can not see any of the thumbnails in events or in photos folder. Seems only two people have posted Qs similar to mine. I tried toad's suggestion of opening package content but no data folder was there yet the thumbnails tell me how many pics and size in each event.
has anyone heard from Apple on this issue?

bjtoft
Try rebuilding the database. Hold down the apple and option (or alt) keys and launch iPhoto. Use the resulting dialogue to rebuild. Choose all the options.
Regards
TD

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To repair the Library:
Option 1
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If that fails:
Option 2
Download iPhoto Library Manager and use its rebuild function. This will create a new library based on data in the albumdata.xml file. Not everything will be brought over - no slideshows, books or calendars, for instance - but it should get all your albums and keywords back.
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I am working on an animation project. I have talent that is chroma keyed in the animated background (animation in DV-NTSC mov. at highest setting in fcp).
When the DV tape plays with talent in fcp - no digital artifcats. When the animation is rendered in with/or without the chroma key digital artifacts appear at intermittent parts of the rendered piece. It appears on the viewer window in FCP and on an external monitor as well. It's green and pink blocks that show up as flashes on the screen.
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Just in case you're doing this in a DV sequence, my first advice is: don't. I don't know if editing in say 8-bit uncompressed will help your specific woes with the animation, but it should keep away additional ones with the chroma key. The key will be very difficult already given the source is DV.
You'd have to say more about what the animation is, what it was produced with, whether it has seen any compression yet, and what your render settings are. Then of course there will be more questions.
Do set up for full level renders and do a render on the animation for assessment. Just because you see it and can play it back doesn't mean it's truly rendered.
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Digital artifacts appears on image

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12 GB 1333 Mhz DDR3
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Everything was working fine then one day started to appear small digital artifacts i dont know if this was after an update, but this only works on Aperture .
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They are always random artifacts. Hope this helps.
Thks

IPhoto thumbnails full of digital artifacting after Rebuild

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