哪位大神解答下这块代码是啥意思
xyimg=b;
yyimg=im2bw(xyimg,0.5);
xximg=~yyimg;
forii=0:1;
e(ii+1)=0
cboxs=256/e(ii+1)
for i=1:cboxs
xi=(i-1)*e(ii+1)+1;
for j=1:cboxs
yi=(j-1)*e(ii+1)+1;
ne_tp=0
for xk=xi+e(ii+1)-1
for yk=yi+e(ii+1)-1
if xximg(xk,yk)==0
ne_tp=1
end
end
end
if ne_tp==1
ne(ii+1)=ne(ii+1)+1;
end
end
end