TY - BOOK AU - Esraa Mohammed Hashem Elhariri AU - Aboulella Hassanien , AU - Amr Badr , AU - Nashwa Elbendary , TI - Content-based image retrieval for agricultural crops / PY - 2015/// CY - Cairo : PB - Esraa Mohammed Hashem Elhariri , KW - Agricultural crops KW - Content-based image KW - Image classification N1 - Thesis (M.Sc.) - Cairo University - Faculty of Computers and Information - Department of Computer Science; Issued also as CD N2 - This thesis presents an automated classification approach based on machine learing techniques for estimating and classifiying the different maturity / ripeness stages of tomato and bell pepper . The proposed approach consists of three phases that are pre-processing, feature extraction . and classification phascs . Surface color of tomato and bell pepper is the most important characteristic to observe ripeness ER -