各种算法实现边缘的提取 %调入与显示RGB图像 RGB = imread('123.jpg'); isrgb(RGB); figure(1); imshow(RGB); %RGB图转换为灰度图像 I = rgb2gray(RGB); figure(2); imshow(I); %边缘检测 ED = edge(I,'sobel',0.08); figure(3) imshow(ED); %sobel边界探测器 BW1 = edge(I,'sobel'); %canny边界探测器 BW2 = edge(I,'canny'); figure(4) imshow(BW1) figure, imshow(BW2)