p0402.m

《visual c++matlab图像处理与识别实用案例精选》源码

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')