What application can generate an image mosaic of my other images?

Mazaika can do this, I used it once a few years ago for a friend’s birthday present. Just use it on the trial basis. There are a few more out there.

I have done this in photoshop. Create a background of the photos you have, I didnt’ worry about the color arrangement, I just put them together helter skelter. Then create a new layer with the photo you want on top, decrease the opacity of that layer until you can see the little pics in the background but can still see the main image in the front. Works fine.

Do a search for “mosaic” on sourceforge, there are easily over a dozen.

PyMos uses Python. I haven’t tried it so I can’t give much of an opinion of it. It’s run from the CLI though so it’d be one of my first choices if I ever needed such a thing. The example images look pretty good too…

www.mosaickr.com
www.mosaizer.com
www.sixdots.de/mosaik/en/index.php

MacOSaiX for mac is pretty good.

Thanks for the answers everybody. I also have to mention I’m quite stupid, as I didn’t know how this type of software was called, and then I mindlessly asked it on Fluther while of course I’d come across the meaning while asking it… So I’ve now used metapixel which has worked fine :)

@phoenyx Ha, SourceForge, long time ago since I was looking for software there… :)