The large image of a Hasidic boy created from a repeating image of Toulouse-Lautrec's head is a creation of a processing application I wrote for artist, Brian Moss, and an upcoming exhibit in Los Angeles. The program can recreate any image with any other image and has a series of variables that allow for calibration of contrast, image size, angle of the grid, and other features for color.

One of the test renderings at full resolution can be downloaded here.

and the Application itself is available here.