A=imread（‘C:\Documents?and?Settings\Administrator\桌面\郭威200808205130\源代碼\圖片\13.jpg‘）;
B=rgb2gray（A）;
T=0.5*（double（min（B（:）））+double（max（B（:））））;
d=false;
while~d
????g=B>=T;
????Tn=0.5*（mean（B（g））+mean（B（~g）））;
????d=abs（T-Tn）<0.5;
????T=Tn;
end
T
subplot（131）;imshow（A）;
subplot（132）;imshow（B）;
subplot（133）;imshow（g）;

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件????????349??2010-12-23?22:12??matlab大作業(yè)\源代碼\zuoye1_1.m

?????文件????????279??2010-12-23?22:12??matlab大作業(yè)\源代碼\zuoye1_2.m

?????文件????????388??2010-12-23?22:12??matlab大作業(yè)\源代碼\zuoye2.m

?????文件????????163??2010-12-23?22:12??matlab大作業(yè)\源代碼\zuoye3.m

?????文件??????11936??2009-03-17?22:45??matlab大作業(yè)\源代碼\圖片\11.tif

?????文件??????46343??2009-03-17?22:44??matlab大作業(yè)\源代碼\圖片\13.jpg

????..A.SH.?????10752??2010-12-23?22:11??matlab大作業(yè)\源代碼\圖片\Thumbs.db

?????文件????????396??2010-12-24?10:39??matlab大作業(yè)\參考文獻(xiàn)\參考文獻(xiàn).txt

?????文件?????435712??2010-12-24?10:28??matlab大作業(yè)\技術(shù)存檔\Matlab大作業(yè).doc

?????文件??????40448??2010-12-23?22:11??matlab大作業(yè)\技術(shù)存檔\周靜《MATLAB應(yīng)用》大作業(yè)試卷.doc

?????文件?????412160??2010-12-23?22:20??matlab大作業(yè)\效果圖\效果圖.doc

?????目錄??????????0??2010-12-24?12:35??matlab大作業(yè)\源代碼\圖片

?????目錄??????????0??2010-12-24?12:35??matlab大作業(yè)\源代碼

?????目錄??????????0??2010-12-24?12:35??matlab大作業(yè)\參考文獻(xiàn)

?????目錄??????????0??2010-12-24?12:35??matlab大作業(yè)\技術(shù)存檔

?????目錄??????????0??2010-12-24?12:35??matlab大作業(yè)\效果圖

?????目錄??????????0??2011-11-27?22:51??matlab大作業(yè)

-----------?---------??----------?-----??----

???????????????958926????????????????????17