metapixel:  Metapixel (program for generating photomosaics)
metapixel:
metapixel: It can generate classical photomosaics, in which the source image
metapixel: is viewed as a matrix of equally sized rectangles for each of
metapixel: which a matching image is substitued, as well as collage-style
metapixel: photomosaics, in which rectangular parts of the source image at
metapixel: arbitrary positions (i.e. not  aligned to a matrix) are substituted
metapixel: by matching images.
metapixel:
metapixel: Homepage: http://www.complang.tuwien.ac.at/schani/metapixel/
metapixel: