El Tue, 11 de Jul de 2006, a las 09:43:11PM +0200, JKD dijo: > > Have anyone detailed information about this subject? I answer to myself: - Image Processing Fundamentals: HTML http://www.ph.tn.tudelft.nl/Courses/FIP/noframes/fip.html PDF http://www.ph.tn.tudelft.nl/People/albert/papers/YoungShading.pdf Jonathan