Automatic generation of pen-and-ink drawings from photos.

Jiatao Song Zheru Chi Jilin Liu Hong Fu Automatic generation of pen-and-ink drawings from photos. 1185-1188 2004 ICIP http://dx.doi.org/10.1109/ICIP.2004.1419516 db/conf/icip/icip2004-2.html#SongCLF04