p0402.m

来自「程序代码说明 P0401：用Prewitt算子检测图像的边缘 P04」· M 代码 · 共 6 行

I = imread('bacteria.BMP');
BW1 = edge(I,'log',0.003);  % σ=2
imshow(BW1);title('σ=2')
BW1 = edge(I,'log',0.003,3); % σ=3
figure, imshow(BW1);title('σ=3')