[baiyangyang]

这个代码不知道为什么错了，请帮忙看看吧。谢谢！
I_Gray=imread('0157.tif');
[m,n]=size(I_Gray);
if min(m,n)>2000
[m_shrink,n_shrink,I_shrink]=shrink3(I_Gray);
else
I_shrink=Array;
end
[m_Array,n_Array]=size(I_shrink);
org_im=double(i_shrink)/255;
result=zeros(m_Array,n_Array);
for i=1:m_Array-2
for j=1:n_Array-2
dg1=abs(org_im(i,j)-org_im(i+1,j));
dg2=abs(org_im(i,j)-org_im(i-1,j));
dg=([dg1 dg2]);
temp=dg(sort(dg));
if temp(1)>50
result(i,j)=255;
else
result(i,j)=0
end
end
end

期中shrink3是图像缩小的M文件
运行后说??? Subscript indices must either be real positive integers or logicals.