Below is a useful script for taking all photos selected and comparing them to all other photos for similarity. Note that it only compares pictures with very similar dimensions (off by 5 pixels at most) and uses the thumbnails for faster image processing. Was a good lesson in how to do things with AppleScript, I think I’m far more capable after writing this.
set ImageMagickHome to “/Users/cknight/ImageMagick-6.6.3″
tell application “iPhoto”
set curPhotos to selection
if (count of curPhotos) ≤ 1 then
display alert “You need to select the photos you want me to process.”
else
set similarityLimit to text returned of (display dialog “Enter similarity limit (0-65,536, similar pictures have low similarity metrics), and click GO” buttons {“GO”} default answer “10000″ default button 1)
repeat while length of curPhotos > 0
set thisPhoto to item 1 in curPhotos
repeat with thatPhoto in rest of curPhotos
set thisWidth to width of thisPhoto
set thisHeight to height of thisPhoto
set thatWidth to width of thatPhoto
set thatHeight to height of thatPhoto
if thisWidth < thatWidth + 5 and thisWidth > thatWidth – 5 and thisHeight < thatHeight + 5 and thisHeight > thatHeight – 5 then
set diffstr to (do shell script “DYLD_LIBRARY_PATH=’” & ImageMagickHome & “/lib’&& export DYLD_LIBRARY_PATH && ” & ImageMagickHome & “/bin/compare -dissimilarity-threshold 1 -metric mae ‘” & thumbnail path of thisPhoto & “‘ ‘” & thumbnail path of thatPhoto & “‘ /dev/null 2>&1 | cut -f 1 -d ‘ ‘”) as text
set diff to diffstr as number
if diff < similarityLimit then
set comment of thisPhoto to comment of thisPhoto & ” duplicate of ” & name of thatPhoto
set comment of thatPhoto to comment of thatPhoto & ” duplicate of ” & name of thisPhoto
– set keywords of thisPhoto to keywords of thisPhoto & {“duplicate”}
–display alert “this: ” & image filename of thisPhoto & ” and that: ” & image filename of thatPhoto
end if
end if
end repeat
set curPhotos to rest of curPhotos
end repeat
display alert “All done!”
end if
end tell
This was followed by “
Friday – Left work early, visited the 
the Old People”, which were HDTV’s turned sideways and arranged side-by-side, playing slow video loops of classic scenes being set as if they were turn-of-the-century photos of frontier folk and Native Americans in their staged b/w photos common in that era. (A-la 
Also jumped over to the Discovery meadow to check out “Homouroboros” by 
Vietnamese food for dinner (uninspired, alas), then on to the SubZero fair. The museums on First were a good way to spend the remaining hours of light while the fair was finishing setup, probably my favorite pieces were at the 
The fair was definitely the highlight of the 01SJ this time around, there was so much to see and do and to take in. Folks were very happy to chat about their art, and I enjoyed watching the works of the graffiti artist 
Saturday – Spent recovering from the busy week, going to a friend’s wedding (Chinese seafood feast!), and a quick visit to the VIP reception on top of the Tech for some photos and taking in the view.
occasional weird positioning of horns when they echoed off a side wall, and a bit of muddyness to the sound, but still quite good for a free (well, sorta free) seat. It was great to hear the history of the composition of the piece, woven with the orchestra playing excerpted passages compared with traditional tunes played on traditional instruments. After the intermission, the whole Rite of Spring was played straight through by the orchestra, a very fine performance, true to the Stravinsky Conducts Stravinsky take, and generally well played and conducted. It was quite surprising to me how loud a full orchestra can play, I can imagine how that must have felt for the first time, when the riots erupted. (I enjoyed the end-note of the symphony so much that I bought my wife and I two tickets for the Russian Piano Competition happening on the 14th of June.)
Zzzzzzzzzzzz….Gauhwha, oh, something interesting you say? I’m sorry, I fell asleep during the “geek love fest” about how wonderful it would be to have an open platform. Boy howdy, I see so many desktop computers running Linux and using Java for their UI’s. 
The built in timer is nice on the phone, but it lacks something critical: second resolution. For brewing