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Sometimes, an image travels multiple paths before it ends up on my disk, and thus gets saved under different names. But that's a waste of disk, so I want to eliminate duplicates where I can. At first I was using a simple tool that computed the MD5 hash of each image in my collection, and eliminated the duplicates easily.
But frequently, the image has been scaled or maybe even re-rendered at a different JPEG quality, or converted from JPEG to PNG. In that case, the actual bits are not the same, even though the image is nearly the same on my screen.
Notabene: this is Perl code, only a little Image::Magick to read the images...
And then there is pcomp (and the KDE GUI frontend kpcomp for it)
And let's not forget the stunning imgSeek. Awesome, if you happen to have Linux somewhere. Also a webinterface/deamon thingie is planned
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Martin Spernau
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