aart converts PNM (PGM, PBM, PPM) images into colored ASCII. It
supports user-defined color palletes, PSF fonts, and character sets. It
generates a PPM image file or a text file.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
Thread support has been added to speed up the conversion process on SMP systems. An XML output module was added, along with a sample XSLT stylesheet for converting the output to HTML.