• Morphology denotes the biological branch that deals with the form and structure of animal and plants
• We use mathematical morphological as a tool for extracting image that is useful for representation and description of image shape such as boundaries extraction , skeletons, convex hull , pruning , thinning
• Binary image belong to $Z^2$ and Gray image $Z^3$
• SE : Small sets or sub image used to probe an image under study of interest called SE
• Khatay dekho