Duplicate search

Ideas for improvements and requests for new features in XnView Classic

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Jonstec
Posts: 1
Joined: Mon Jan 06, 2014 3:55 pm

Duplicate search

Post by Jonstec »

I have some suggestions to search for duplicates, to the process of improving a little bit if posiadmy a large collection of images that it does not scan every time all the images, the program creates the database something like in this free program https://tn123.org/simimages/ if something to do besides if duplicate files were shown as in this program at all if they were able to reproduce the functionality of the program used in Xnview or even part of it would be ideal. Best regards :D
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omniplex
Posts: 127
Joined: Thu Feb 10, 2011 1:52 pm
Location: Hamburg
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Re: Duplicate search

Post by omniplex »

FFmpeg (the command line video/audio/image tool) uses another approach, it has a MD5 filter for its internal (raw) format. The same picture in different formats (after lossless conversions) would yield the same MD5 hash. I have a small script, in essence a one liner, for this job:

Code: Select all

ffmpeg -i "IMAGE" -f md5 - -v warning 
IMAGE is an image in one of the formats supported by ffmpeg; -v warning removes the banner from the output.
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