What are these numbers? Where are they from? There is a file format called PGM where the pixels are each represented by a three figure number (plus those under 100). PGM is derived from 'Portable Gray Map' - see: netpbm.sourceforge.net/doc/pgm.html
I created a PGM of a (awful) mugshot of myself then opened into notepad and took a screen grab. Paint Shop Pro's 'spherize' feature helped me create the decimal digital planet me.
To mis-quote the late great Douglas Adams - "I have an ego the size of a planet".