Faces shows incorrect thumbnails

As a test depress teh option key and launch iPhoto - create a new library - iomport a few photos into it and see if the issue is repeated in the test library

LN

Hence the suggested test - what are the results?

As a test depress the option key and launch iPhoto - create a new library - import a few photos into it and see if the issue is repeated in the test library

LN

Have you purchased IPLM or are you using the demo? If you own it try deleting the photos you imported into the test library and merging yuor existing library into the new (working) library

LN

I'm at a loss too - weird issue

LN

Dan,

I had and still have the same problem. Here is what partially soved it for me.

1. Go through all your photos for one person. Flag any that have a problem.

2. Open Flagged album.

3. For each photo delete all found faces.

4, Select all Flagged photos, then Photos > Detect Missing Photos.

5. Open each photo and assign the correct name to the found Faces.

When the original found faces become corrupt no rebuilting by iPhoto or iPhoto Library Manager will fix the problem. Deleting the corrupt found face boxes, then redetectiing the faces creates uncorrupted data structures.

A major problem is that the data corruptions appears to be associated with the photo and not restricted to the found faces which have obvious issues. If you delete only the incorrect found face boxes but leave those which seem correct, I have observed that applying Detect Missing Photos may result in the originally correct found faces being changed to have something wrong.

Another problem is that if you delete a correct found face box and then applying Detect Missing Photos finds exactly the same box, iPhoto remembers you have deleted it and does not replace it. In my hands this has happened in about a quarter of the photos. At least some of my photos have been repaired.

An observation that may confirm we are seeing similar coruption is the shape of the incorrectly placed found face box. In many cases I have seen a vertical rectangle which is offset from the found face. For different corrupt found faces this rectangle may be in differnt places in the photo, or of a different size, but the height to width proportions seem similar. Do you see found face boxes like this?

Dan,

Glad to see my suggestion worked for you. Over the last week I have been similarly trying to remove more corrupt data from my library of over 25,000 photos. The corruption I see is as described earlier, plus the small square boxes you describe, plus more:

tiny boxes with essentially no area at the lower left corner of the photo

photos with no found face box yet the Info pane lists names of found faces

large square boxes labled with a correct name but in the wrong locations in the photo

found face boxes appear correct but the thumb is from some other part of the photo

found face boxes appear correct but the thumb is rotated 90 degrees

Probably there are others that I do not remember right now.

As might be expected with this level of incorrectly identified faces, prediction of matching faces has been poor. As I have deleted obvious corruption from the database I have also verified correct predictions and marked incorrect predictions. Predictions are now much better.

This corruption remained after merging three libraries using iPhoto Library Manager, then doing all of iPhotos internal rebuilds several times, then rebuilding the library using iPhoto LIbrary Manager. When I finish removing what corruption I can manually I plan to rebuild everythng once again. Even with all this cleaning I am concerned that I will miss some corrupt data, and the corruption will propagate.

I have not heard of using MySQL on Faces or iPhoto. Directly manipulating internal iPhoito structures sounds like asking for trouble, but we already have lots of trouble with no apparent solution. I will investigate. Thanks for the tip. Have you tried it?

Tom

I also described this issue to Brian a few days ago. He said if there was more demand he might look into it. Good that you asked, and gave him your data to examine. I will stop manually editing my faces and wait to see if an automated fix can be created.