BradLarson/GPUImage — pull request #90 by fattjake (2012-05-01 07:37:25+00:00)
Title: GPUImageMosaicFilter

The mosaic filter replaces the input image with a tile based on the
luminance of the input image. It requires a tile set that is
structured by luminance in ascending order. The idea is to replicate
the ASCII video images, but any tile set can be used.