There is a plethora of papers in the subject and are so many scientists who work on this problem and derive a lot of edge detection filters and algorithms that are various degrees of success of different image 因此，众多学者一直致力于图像边缘检测方法的研究，并提出了许多行之有效的边缘检测方法。图像的边缘是指图像中相邻象素点之间的灰度有较显著的变化，这种变化可以用数学上的梯度来刻划其分布。
