Random Penta-Thread Weaver 8k (No AI)

The algorithm works like this:

• Pick a color and set a pixel to this color.
• Repeat step 1 as many times as desired.
• Pick a color.
• Find the colored edge pixel closest in color to this color.
• Set one of its uncolored 8-adjacent pixels to this color.
• Go to step 3 unless all pixels have been colored.

Command line used:

./color -o2048x8192x8_5-starts.ppm -s2048:8192:8 -p1506,3613 -p714,3488 -p350,4202 -p917,4769 -p1631,4405

Generated with C code (Public Domain) from Christopher Wellons:

github.com/skeeto/every-rgb