function?c?=?dct_iv（x）
%?dct_iv?--?Type?（IV）?Discrete?Cosine?Xform
%??Usage?
%????c?=?dct_iv（x）
%??Inputs
%????x?????1-d?signal?length（x）?=?2^J
%??Outputs
%????c?????1-d?cosine?transform?length（x）=2^J
%
%??Description
%????The?form?c?=?dct_iv（x）?computes?c?defined?by
%?????????c_m?=?sqrt（2/N）?*?sum_n?x（n）?cos（?pi?*?（m-.5）?*?（n-.5）?/?N?）
%?????where?
%?????????1?<=?mn?<=?N??N?=?length（x）?=?length（c）
%
%????To?reconstruct?use?the?same?function:
%?????????x?=?dct_iv（c）
%
%??See?Also
%????CPAnalysis?CPSynthesis
%

	n2?=?2*length（x）;
	y?=?zeros（1?4*n2）;
	y（2:2:n2）?=?x（:）;
	z?=?fft（y）;
	c?=?sqrt（4/n2）?.*?real（z（2:2:n2））;

%
%?Copyright?（c）?1993.?David?L.?Donoho
%?????
????
????
?
?
%
%??Part?of?Wavelab?Version?850
%??Built?Tue?Jan??3?13:20:40?EST?2006
%??This?is?Copyrighted?Material
%??For?Copying?permissions?see?COPYING.m
%??Comments??e-mail?wavelab@stat.stanford.edu?

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

?????文件??????44094??2011-07-14?15:22??SegMCA\barbara.jpg

?????文件?????219428??2011-07-14?15:28??SegMCA\barbara.png

?????文件????????916??2006-01-03?13:20??SegMCA\dct_iv.m

?????文件???????1077??2006-01-03?13:20??SegMCA\edgefold.m

?????文件???????1087??2006-01-03?13:20??SegMCA\edgeunfold.m

?????文件???????1010??2006-01-03?13:20??SegMCA\fold.m

?????文件????????853??2006-01-03?13:20??SegMCA\MakeONBell.m

?????文件??????11256??2010-11-05?20:15??SegMCA\MCA2_Bcr.m

?????文件????6181941??2011-07-16?11:19??SegMCA\MCA_lena.fig

?????文件????6180428??2011-07-16?11:19??SegMCA\MCA_lena_process.fig

?????文件??????53248??2008-08-16?03:42??SegMCA\mirdwt.dll

?????文件???????3472??2009-06-19?20:19??SegMCA\mirdwt.m

?????文件??????17076??2008-08-16?03:42??SegMCA\mirdwt.mexmaci

?????文件??????51712??2008-08-16?03:42??SegMCA\mrdwt.dll

?????文件???????3330??2009-06-19?20:19??SegMCA\mrdwt.m

?????文件??????10596??2009-06-19?20:19??SegMCA\mrdwt.mexglx

?????文件???????6825??2009-06-19?20:19??SegMCA\mrdwt.mexlx

?????文件??????13084??2009-06-19?20:19??SegMCA\mrdwt.mexmac

?????文件??????17076??2008-08-16?03:42??SegMCA\mrdwt.mexmaci

?????文件???????7680??2009-06-19?20:19??SegMCA\mrdwt.mexsol

?????文件????????887??2010-10-30?10:57??SegMCA\quadlength.m

?????文件???????1387??2013-04-09?15:43??SegMCA\SegMCAlena.m

?????文件???????3248??2011-07-16?11:03??SegMCA\SegMCAlenametadata.mat

?????文件????????989??2006-01-03?13:20??SegMCA\unfold.m

?????目錄??????????0??2013-04-09?15:43??SegMCA

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?????????????12832700????????????????????25