http://radeff.red/akademia/diagram.php
kimagemapeditor - an HTML image map editor for KDE
sudo apt-get install kimagemapeditor
sudo apt-get install kompozer
The GIMP also has a tool for this under Filters —> Web —> ImageMap. Tutoriel en français
http://webdesign.about.com/od/imagemaps/a/aabg051899a.htm