%?Read?the?file?“ReadMe.txt“?for?more?details?about?this?demo
%?Javier?Portilla?Universidad?de?Granada?Spain
%?Last?time?modified:?14/5/2004

%?Load?original?image
path（path?‘.\Simoncelli_PyrTools‘）
path（path?‘.\Added_PyrTools‘）
path（path?‘.\images‘）
path（path?‘.\denoising_subprograms‘）
clear
%?im0?=?imread（‘images/lena1.png‘）;
%im0?=?imread（‘images/lena.png‘）;???????????%?Other?examples?of?images?（see?the?“images“?folder）
im0?=?imread（‘images/house.png‘）;
im0?=?double（im0）;??%?convert?it?to?double
[NyNx]?=?size（im0）;

%?and?show?it
figure（1）
rang?=?showIm（im0‘auto‘）;title（‘Original?image‘）

%?Noise?Parameters?（assumed?additive?Gaussian?and?independent?of?the
%?original?image）
sig?=?10;		????????%?standard?deviation
PS?=?ones（size（im0））;	%?power?spectral?density?（in?this?case?flat?i.e.?white?noise）
seed?=?0;???????????????%?random?seed

%?Pyramidal?representation?parameters
Nsc?=?ceil（log2（min（NyNx））?-?4）;??%?Number?of?scales?（adapted?to?the?image?size）
Nor?=?3;				????????????%?Number?of?orientations?（for?X-Y?separable?wavelets?it?can?only?be?3）
repres1?=?‘uw‘;?????????????????????%?Type?of?pyramid?（shift-invariant?version?of?an?orthogonal?wavelet?in?this?case）
repres2?=?‘daub1‘;??????????????????%?Type?of?wavelet?（daubechies?wavelet?order?2N?for?‘daubN‘;?in?this?case?‘Haar‘）

%?Model?parameters?（optimized:?do?not?change?them?unless?you?are?an?advanced?user?with?a?deep?understanding?of?the?theory）
blSize?=?[3?3];	????%?n?x?n?coefficient?neighborhood?of?spatial?neighbors?within?the?same?subband
????????????????????%?（n?must?be?odd）:?
parent?=?0;			%?including?or?not?（1/0）?in?the?neighborhood?a?coefficient?from?the?same?spatial?location
????????????????????%?and?orientation?as?the?central?coefficient?of?the?n?x?n?neighborhood?but
????????????????????%?next?coarser?scale.?Many?times?helps?but?not?always.
boundary?=?1;		%?Boundary?mirror?extension?to?avoid?boundary?artifacts?
covariance?=?1;?????%?Full?covariance?matrix?（1）?or?only?diagonal?elements?（0）.
optim?=?1;??????????%?Bayes?Least?Squares?solution?（1）?or?MAP-Wiener?solution?in?two?steps?（0）

%?Uncomment?the?following?4?code?lines?for?reproducing?the?results?of?our?IEEE?Trans.?on?Im.?Proc.?Nov.?2003?paper
%?This?configuration?is?slower?than?the?previous?one?but?it?gives?slightly?better?results?（SNR）
%?on?average?for?the?test?images?“lena“?“barbara“?and?“boats“?used?in?the?cited?article.

%?Nor?=?8;???????????????????????????%?8?orientations
%?repres1?=?‘fs‘;????????????????????%?Full?Steerable?Pyramid?5?scales?for?512x512
%?repres2?=?‘‘;??????????????????????%?Dummy?parameter?when?using?repres1?=?‘fs‘???
%?parent?=?1;????????????????????????%?Include?a?parent?in?the?neighborhood

%?Generate?a?noisy?image
randn（‘state‘?seed）;
noise?=?randn（size（im0））;
noise?=?noise/sqrt（mean2（noise.^2））;
im?=?im0?+?sig*noise;

%?and?show?it?on?the?screen
figure（2）
showIm（imrang）;title（[‘Degraded?image?\sigma^2?=‘?num2str（si

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

?????文件???????2255??2004-01-07?15:25??BLS-GSM\Added_PyrTools\bound_extension.m

?????文件???????1970??2004-10-14?17:55??BLS-GSM\Added_PyrTools\buildWUpyr.m

?????文件???????3918??2002-11-12?16:30??BLS-GSM\Added_PyrTools\daubcqf.m

?????文件???????1083??2004-01-23?17:51??BLS-GSM\Added_PyrTools\expand.m

?????文件???????8192??2004-03-02?12:28??BLS-GSM\Added_PyrTools\mdwt.dll

?????文件???????8704??2004-03-02?12:28??BLS-GSM\Added_PyrTools\midwt.dll

?????文件???????3196??2002-11-12?16:26??BLS-GSM\Added_PyrTools\mirdwt.c

?????文件???????9216??2004-03-02?12:28??BLS-GSM\Added_PyrTools\mirdwt.dll

?????文件???????5210??2002-11-12?16:31??BLS-GSM\Added_PyrTools\mirdwt.m

?????文件??????????0??2009-10-09?21:59??BLS-GSM\Added_PyrTools\mirdwt.map

?????文件????????616??2009-10-09?21:59??BLS-GSM\Added_PyrTools\mirdwt.mexw32.manifest

?????文件???????3922??2009-10-09?21:52??BLS-GSM\Added_PyrTools\mirdwt.obj

?????文件???????2901??2002-11-12?16:26??BLS-GSM\Added_PyrTools\mrdwt.c

?????文件???????8704??2004-03-02?12:28??BLS-GSM\Added_PyrTools\mrdwt.dll

?????文件???????5068??2002-11-12?16:32??BLS-GSM\Added_PyrTools\mrdwt.m

?????文件??????????0??2009-10-09?21:48??BLS-GSM\Added_PyrTools\mrdwt.map

?????文件????????616??2009-10-09?21:48??BLS-GSM\Added_PyrTools\mrdwt.mexw32.manifest

?????文件???????1682??2003-03-19?15:23??BLS-GSM\Added_PyrTools\reconWUpyr.m

?????文件????????977??2004-01-23?17:53??BLS-GSM\Added_PyrTools\shrink.m

?????文件????????248??1996-12-09?16:36??BLS-GSM\Added_PyrTools\snr.m

?????文件???????1250??2005-03-14?16:15??BLS-GSM\change_log.txt

?????文件???????1053??2005-02-23?10:49??BLS-GSM\change_log.txt.$$$

?????文件???????1833??2004-11-26?13:24??BLS-GSM\denoising_subprograms\decomp_reconst.m

?????文件???????2463??2004-11-26?13:22??BLS-GSM\denoising_subprograms\decomp_reconst_full.m

?????文件???????2666??2004-05-14?21:54??BLS-GSM\denoising_subprograms\decomp_reconst_W.m

?????文件???????2930??2005-02-23?10:19??BLS-GSM\denoising_subprograms\decomp_reconst_WU.m

?????文件???????6926??2005-03-14?16:10??BLS-GSM\denoising_subprograms\denoi_BLS_GSM.m

?????文件???????7304??2004-10-14?17:56??BLS-GSM\denoising_subprograms\denoi_BLS_GSM_band.m

?????文件???????3513??2009-10-21?11:16??BLS-GSM\denoi_demo.m

?????文件???????7466??2005-02-23?11:08??BLS-GSM\ReadMe.txt

............此處省略202個文件信息