사진을 연필스케치로 전환

본문  http://www.slrclub.com/bbs/vx2.php?id=user_lecture&no=8967

최초원문(아별닷컴) : http://www.abyul.com/zbxe/84819

SLR클럽 게시물 : http://www.slrclub.com/bbs/vx2.php?id=user_lecture&no=8888