GradientFiltering1 4.0 Image Gradients and Gradient Filtering In this class, we will learn about Image Gradients and Gradient Filtering. ● Image Edge We can view an image as a 2D function. How can we detect an edge? What kinds of filter should we use? ● Forward Difference We have learned the formula above in high school. The derivative of a function f at a point x is defined by the limit. The formula above is the approximation of the derivative when h is s.. 2020. 8. 4. 이전 1 다음
