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ÎÒÏë¶ÔÕâ·ùͼÏñÖеÄË®µ¾½øÐÐͼÏñ·Ö¸î£¬²ÉÈ¡ÁË»ùÓÚ¿ØÖƱê¼ÇµÄ¾àÀë±ä»»·ÖË®Áë·Ö¸î³ÌÐòÈçÏÂ
rgb = imread('C:\Users\chenxuan\Desktop\µ¾×Óԭͼ.jpg');
if ndims(rgb) == 3
I = rgb2gray(rgb);
else
I = rgb;
end
hy = fspecial('sobel');
hx = hy';
Iy = imfilter(double(I), hy, 'replicate');
Ix = imfilter(double(I), hx, 'replicate');
gradmag = sqrt(Ix.^2 + Iy.^2);
L = watershed(gradmag);
wr=L==0;%·ÖË®Áë¼¹Ïß
subplot(121),imshow(rgb),subplot(122),imshow(wr)
rm=imregionalmin(I);whos rm
figure,imshow(rm)
im2=imextendedmin(I,27);
figure,imshow(im2)
fim=I;fim(im2)=175;figure,imshow(fim)%ÒÔ»ÒÉ«À´ÏÔʾÕâЩ¡°¾Ö²¿×îÐ¡ÇøÓò¡±
fim=I;fim(im2)=175;figure,imshow(fim,[])
temp=bwdist(im2);%¾àÀë±ä»»
figure,imshow(temp,[])
Lim=watershed(temp);
em=Lim==0;
figure,imshow(em) %em=external marker£¬Íⲿ±ê¼Ç·û
whos em
max(em()
temp=bwdist(~im2);figure,imshow(temp,[])
Lim=watershed(temp);em=Lim==0;figure,imshow(em)
I(em)=255;figure,imshow(I,[])
fim(em)=255;figure,imshow(I,[])
g2=imimposemin(g,im2|em);
g2=imimposemin(gradmag ,im2|em);
L2=watershed(g2);
f2=I;f2(L2==0)=255;
figure,imshow(f2,[])

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