Generate a photo mosaic
# Create mosaic of portrait.png from Photos as tiles
# displayed on a 32x32 grid. Output to be written on Mosaic directory
$ mosaic portrait.png Photos 32,32 Mosaic
...
Source grid: [1021] {126 50 76} Closest img: [01] { 87 59 110}
Source grid: [1022] {117 43 72} Closest img: [01] { 87 59 110}
Source grid: [1023] {117 38 66} Closest img: [01] { 87 59 110}
Output written to : Photos/portrait_out.png