GRAPH BASED SOLUTION FOR SEGMENTATION TASKS IN CASE OF OUT-OF-FOCUS, NOISY AND CORRUPTED IMAGES Topics: Digital Image Processing; Image Enhancement and Restoration; Mathematical Morphology In Proceedings of the International Conference on Imaging Theory and Applications and International Conference on Information Visualization Theory and Applications - Volume 0VISIGRAPP, 100-105, 2011 , Vilamoura, Algarve, Portugal