电子科线女学光电科学与工程学院 SCHOOL OF OPTOELECTRONIC SCIENCE AND ENGINEERING OF UESTC 3.1 Background Origin g(x,y)=T[f(x,y)】 (x,y) 3 x 3 neighborhood of(x,y) FIGURE 3.1 A3×3 neighborhood about a point (x,y)in an image in the spatial domain.The neighborhood is moved from pixel Image f to pixel in the image to generate Spatial domain an output image. X3.1 Background g x y T f x y ( , ) ( , ) =  