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Fractal-Mosaics
Fractal Mosaics is a rotation, scale, and translation invariant photomosaic algorithm (i.e., the images can be placed at arbitrary locations, can be scaled to any size, and can be rotated by any angle).
For a detailed description of the algorithm, see my "paper" on it and the documentation links below.
Prerequisites
Fractal Mosaics is implemented in Matlab. You’ll need a copy of Matlab with the Signal Processing toolbox installed (any version should work, most should come with the Signal Processing toolbox).
Getting Started
- Download the demo example. This has all the code you need. Simply modify the example to create your own mosaics.
- Download the example image set (706 MB database of images of San Francisco).
- Unpack zip file with images into the /library_images folder in the demo example.
- Navigate to the /m-files directory
- Run ‘fractal_mosaic.m’
Your mosaic is now rendering.
WARNING: it takes a long time to render a mosaic (~6 to 8 hrs on my macbook pro). If you want to optimize it, please do ;)
The demo example creates a black and white mosaic. This is because color takes ~3X as long. To create a color mosaic, download the color image set, and set Fractal Mosaics to color mode (see the Variables page for info on this).
Documentation
Fractal Mosaic “paper”: academic-style paper explaining how the algorithm works How to create your own mosaic: step-by-step instructions Variables: how to use the 10 variables Fractal Mosaics uses to tweak mosaic output Mosaics: Flickr page containing finished mosaics
Licencing
Fractal Mosaics is licensed under the GNU General Public License (GPL). If you wish to use Fractal Mosaics for proprietary software, let's talk! (seth.benton@gmail.com)