It's a good start. However, some dithering options, even a simple Floyd-Steinberg implementation, would probably help improve the quality a bit. This is a tool

It's a good start. However, some dithering options, even a simple Floyd-Steinberg implementation, would probably help improve the quality a bit. This is a tool I wrote a while back that does a similar thing and there are output examples at the bottom off the classic Lena image which can give you an idea of the difference: https://www.floodgap.com/software/ppmascii/ https://www.floodgap.com/software/ppmascii/