Comment by rixrax

On stock rPi5 running this takes > 3 seconds. Three seconds to render 370 x 370, 8-bit/color RGBA image to ASCII on a 2.4GHz CPU. And this is my lead-in to rant about neofetch, which takes about 0.2 seconds to run on the same Pi (see below), which would also be the time it would slow down opening a shell should I put neofetch into my .profile. Lastly, it takes cat to cat output of neofetch to /dev/null about ~0.01 seconds, which also is the time that neofetch should probably take to run (and really, this tool too).

  $ time ascii-silhouettify -i neofetch-1.png > /dev/null
  real 0m1.817s
  user 0m3.541s
  sys 0m0.273s
  $ time neofetch > out.txt
  real 0m0.192s
  user 0m0.118s
  sys 0m0.079s
  $ time cat out.txt > time
  real 0m0.001s
  user 0m0.001s
  sys 0m0.000s