Do you know of any tool that does a good job of finding files that differ only in their metadata or even better can use a perceptual hash to find possible match

Do you know of any tool that does a good job of finding files that differ only in their metadata or even better can use a perceptual hash to find possible matches? Geeqie's find duplicates seems to do the latter, but afaict you can't run that function from the command line.