clc;
clear;
close?all;
%?Test_img=imread（‘.\TestPic\1.jpg‘）;??%%?讀入圖像?
Test_img=imread（‘.\Picture\4.jpg‘）;
%Test_img=imresize（Test_img[168256]）;%改變尺寸
tic;
[Test_widthTest_highthTest_path]=size（Test_img）;
img_gray=rgb2gray（Test_img）;??????
[level?EM]=graythresh（img_gray）;
if?level<0.5
????level=2*level;
else
????level=EM;
end
img_bw=im2bw（img_graylevel）;%二值化
toc;


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