function?D?=?odctdict（NL）
%ODCTDICT?Overcomplete?DCT?dictionary.
%??D?=?ODCTDICT（NL）?returns?the?overcomplete?DCT?dictionary?of?size?NxL
%??for?signals?of?length?N.
%
%??See?also?ODCT2DICT?ODCT3DICT?ODCTNDICT.

%??Ron?Rubinstein
%??Computer?Science?Department
%??Technion?Haifa?32000?Israel
%??ronrubin@cs
%
%??April?2009


D?=?zeros（NL）;
D（:1）?=?1/sqrt（N）;
for?k?=?2:L
??v?=?cos（（0:N-1）*pi*（k-1）/L）‘;
??v?=?v-mean（v）;
??D（:k）?=?v/norm（v）;
end

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

?????文件?????648192??2011-03-18?22:10??DCT\6圖像變換—DCT.ppt

?????文件????????472??2011-05-09?15:31??DCT\odctdict.m

?????文件?????192512??2011-03-18?22:22??DCT\第3章3.3離散余弦變換.ppt

?????目錄??????????0??2011-05-11?15:39??DCT

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

???????????????841176????????????????????4