function?Demo_CS_CoSaMP（）
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%?the?DCT?basis?is?selected?as?the?sparse?representation?dictionary
%?instead?of?seting?the?whole?image?as?a?vector?I?process?the?image?in?the
%?fashion?of?column-by-column?so?as?to?reduce?the?complexity.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%------------?read?in?the?image?--------------
img=imread（‘lena.bmp‘）;?????%?testing?image
img=double（img）;
[heightwidth]=size（img）;


%------------?form?the?measurement?matrix?and?base?matrix?---------------
Phi=randn（floor（height/3）width）;??%?only?keep?one?third?of?the?original?data??
Phi?=?Phi./repmat（sqrt（sum（Phi.^21））[floor（height/3）1]）;?%?normalize?each?column


mat_dct_1d=zeros（256

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

?????文件???????3209??2012-11-21?15:21??software\Demo_CS_CoSaMP.m

?????文件???????8278??2010-07-15?10:02??software\Demo_CS_GBP.m

?????文件???????2898??2012-11-15?14:31??software\Demo_CS_IHT.m

?????文件???????2877??2012-11-15?14:31??software\Demo_CS_IRLS.m

?????文件???????3340??2010-07-16?14:47??software\Demo_CS_OMP.m

?????文件???????3434??2010-07-15?10:03??software\Demo_CS_SP.m

?????文件??????66614??2010-05-11?20:29??software\lena.bmp

?????目錄??????????0??2012-01-08?12:32??software

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

????????????????90650????????????????????8