s079.m

简单的数字图像处理程序

% 灰度图像线条特征  s079
I79=imread('3.jpg');
I790=rgb2gray(I79);
h1=[1 0 -1;1 0 -1;1 0 -1];
h2=[1 1 1;0 0 0;-1 -1 -1];
h3=[0 0 -1;0 0 0;1 0 0];
h4=[-1 0 0;0 0 0;0 0 1];
I791=imfilter(I790,h1);
I792=imfilter(I790,h2);
I793=imfilter(I790,h3);
I794=imfilter(I790,h4);
I795=imadd(I791,I792);
I796=imadd(I794,I793);
I797=imadd(I796,I795);
subplot(2,4,1),imshow(im2bw(I781,0.4));
subplot(2,4,2),imshow(im2bw(I782,0.4));
subplot(2,4,3),imshow(im2bw(I783,0.2));
subplot(2,4,4),imshow(im2bw(I784,0.2));
subplot(2,4,5),imshow(im2bw(I785,0.6));
subplot(2,4,6),imshow(im2bw(I786,0.4));
subplot(2,4,7),imshow(im2bw(I787,0.6))