In various applications, we often haveto deal with sets of images of a certain type; for example,X-rayimages, traffic sceneimages,etc.Eachimage in the set may be different from all the others, but at the same time all images may share certain common characteristics. We need the statistical description of images so that we capture these common characteristics and use them in order to represent an image with fewer bits and reconstruct it with the minimum error “on average”. ... - tailieumienphi.vn