Although there are lots of other things that do this,
but this one goes straight to a google image search of the album and artist,
you could also put this in /Library/iTunes/Scripts/ so that it will run from the iTunes script menu, you may have to turn it on though.
and lets you select what ever image you want.
- Select the track (or select the whole album)
- Run the script
- Follow the link to the image you want.
- drag the image to the album art box in iTunes.
tell application "iTunes"
set theAlbum to album of item 1 of selection as string
set theartist to artist of item 1 of selection as string
end tell
try
set thestring to theAlbum & "+" & theartist
set thestring to do shell script "echo " & thestring & " | sed 's/ /+/g'"
end try
set theUrl to "http://images.google.com/images?client=safari&rls=en&q=" & thestring
tell application "Safari"
open location theUrl
activate
end tell