clear I=imread('bai.jpg');
q=imadjust(I,[.2 .3 0;.6 .7 1],[]);
j=rgb2gray(q);
j1=im2bw(q,230/255);
se90=strel('line',3,90);
se0=strel('line',3,0);
BW2=imdilate(j1,[se90 se0]);
BW3=bwareaopen(BW2,100);
BW3=~BW3;
BW4=bwareaopen(BW3,20);
BW5=bwperim(BW4);
[imx,imy]=size(BW5);
L=bwlabel(BW5,8);
a=max(max(L));
BW6=bwfill(BW5,'hole');
I2=I;
for i=1:3; I2(:,:,i)=I2(:,:,i).*uint8(BW6);
end imshow(I2); 有大神能逐条解释一下语句吗,本人是菜鸟啊,跪求!!