Question

matlab数学形态学图像边缘检测 这个程序是不是需要原文件啊？源文件是什么啊？在matlab中怎么运行？

blood = imread('blood1.BMP'); [x,y]=size(blood); b=double(blood);
N =sqrt(100) * randn(x,y); I=b+N; for i=1:x for j=1:y if (I(i,j)>255) I(i,j)=255;
end if (I(i,j)<0) I(i,j)=0;
end end end
z0=max(max(I)); z1=min(min(I)); T=(z0+z1)/2;
TT=0; S0=0; n0=0; S1=0; n1=0;
allow=0.5; d=abs(T-TT); count=0;
while(d>=allow) count=count+1; for i=1:x
for j=1:y if (I(i,j)>=T) S0=S0+I(i,j); n0=n0+1; end if (I(i,j)<T)
S1=S1+I(i,j); n1=n1+1; end
End end T0=S0/n0;
T1=S1/n1; TT=(T0+T1)/2; d=abs(T-TT);
T=TT; end Seg=zeros(x,y);
for i=1:x for j=1:y if(I(i,j)>=T)
Seg(i,j)=1; end end
End SI=1-Seg; se1=strel('square',3); SI1=imerode(SI,se1); BW=SI-SI1; I=uint8(I);
BW1=edge(I,'sobel', 0.11); BW2=edge(I,'log', 0.015);
figure(1); imshow(I);title('Original') figure(2);
imshow(BW2);title('Soble') figure(3)
imshow(BW1);title('Gauss-Laplace') figure(4)
imshow(BW);title('New algorithm')

Answer 1

不需要，建立新的.m文件，在同目录下添加一张blood1.bmp图像，运行即可

Answer 2

edge.m
具体调用格式记不太清楚了，好像是
fe = edge(f,‘sobel’)；%sobel为检测算子，也可以是‘prewwit’，‘canny’等
自己最好查证下