We need the following paper: author = Cord, A. and Bach, F. and Jeulin, D. year = 2010, title = Texture classification by statistical learning from morphological image processing: Application to metallic surfaces, journal = Journal of microscopy, volume = 239, number = 2, pages = {159-166}, doi = { http://dx.doi.org/10.1111/j.1365-2818.2010.03365.x -- Arup Raychaudhury ------------------------------------------------- Indian Statistical Institute 203 BT Road Kolkata 700108 Phone:0-33-2575-2106 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.