Or aalib <https://en.wikipedia.org/wiki/AAlib> https://en.wikipedia.org/wiki/AAlib>, which I my opinion gives better results than libcaca for monochrome images.

Or aalib <https://en.wikipedia.org/wiki/AAlib> https://en.wikipedia.org/wiki/AAlib>, which I my opinion gives better results than libcaca for monochrome images. You might also enjoy their demo program bb (sudo apt-get install bb).