Special Effects

Development Platform:

Matlab

P0404.asv：Code Content

							I=imread('E:Download多种图像边缘检测与分割处理blood1.tif');
imhist(I);          % 观察灰度直方图， 灰度140处有谷，确定阈值T=140
I1=im2bw(I,140/255); % im2bw函数需要将灰度值转换到[0,1]范围内
figure,imshow(I1);
I = imread('E:Download多种图像边缘检测与分割处理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')

						