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I have ~ 900 pictures (mostly photos) of varying sizes.

Now I want to create one big picture that includes all 900 pictures in a small thumbnail-like resolution. The tool should automatically resize the thumnails so that everything fits. All pictures should be added next to each other, so there should be no border/padding.

Each picture should be included exactly one time! (however, it would be okay to omit a few so that there is no empty space)

I'm looking for a tool (FLOSS, for GNU/Linux) that can do the job.

I tried Metapixel, but

  • it needs an input image that should be "resembled" by the thumbnails, and
  • it only uses a selection of all pictures.

I found montage, but couldn't get a result yet, because my system was unresponsible for hours after starting it. Maybe there are some tweaks?

AndreaMosaic is recommended in this answer, but it's not FLOSS (and needs Wine to run it on GNU/Linux).

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marked as duplicate by Kaze, Mokubai, Tog, HackToHell, Renan Mar 15 '13 at 13:39

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

up vote 1 down vote accepted

You can try imagemagick to at least resize all the images with a script. On you can find a small guide of its uses. You can install it from the repo with apt or with Software Center on Ubuntu.

To place all of them on a single big one, once resized, as you said, montage should work. It is part of imagemagick so maybe it is not working because you didn't install the full imagemagick package?

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You should be able to do this using a combination of the ImageMagick tools and GIMP scripting.

You will need to read the docs and adapt it to your needs.

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What about of wosaic? It can use local pictures to recreate the one you need.

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