function?NC=nc（wv）
%------------------------計算兩個矩陣的相似度系數----------------------------
%------------------------NOTES---------------------------------------------
%?Written????:??30/04/07
%?Contact????:?zxxyj0506@sina.com
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
[wrowwcol]=size（w）;
[vrowvcol]=size（v）;
if?wrow<1||wcol<1||vrow<1||vcol<1
????error（‘輸入有誤--------維數不能小于一‘）;
elseif?wrow~=vrow||wcol~=vcol
????error（‘輸入矩陣維數不相等！‘）;
end
NC=sum（sum（w.*v））./（sqrt（sum（sum（w.*w）））.*sqrt（sum（sum（v.*v））））;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????2678??2010-06-02?23:06??DCT\getmark.bmp

?????文件?????148534??2002-11-13?13:53??DCT\lena.bmp

?????文件????????382??2010-05-05?17:35??DCT\mark.bmp

?????文件????????576??2010-05-09?11:15??DCT\NC.m

?????文件????????964??2010-05-11?14:35??DCT\PSNR.m

????..A.SH.?????28160??2010-05-11?15:06??DCT\Thumbs.db

?????文件?????148534??2010-06-02?23:08??DCT\whitenoise.bmp

?????文件?????148534??2010-06-02?23:06??DCT\withmark.bmp

?????文件???????4150??2010-05-11?14:58??DCT\zongchengxu.m

?????文件?????148534??2010-05-30?14:57??DCT\gaussian.bmp

?????目錄??????????0??2010-05-29?15:59??DCT

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

???????????????631046????????????????????11