function?[PSNR?y_est]?=?BM3D（y?z?sigma?profile?print_to_screen）
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%??BM3D?is?algorithm?for?attenuation?of?additive?white?Gaussian?noise?from?
%??grayscale?images.?This?algorithm?reproduces?the?results?from?the?article:
%
%??[1]?K.?Dabov?A.?Foi?V.?Katkovnik?and?K.?Egiazarian?“Image?denoising?
%???by?sparse?3D?transform-domain?collaborative?filtering“?
%???IEEE?Transactions?on?Image?Processing?December?2006?in?review
%???preprint?at?http://www.cs.tut.fi/~foi/GCF-BM3D.
%
%??FUNCTION?INTERFACE:
%
%??[PSNR?y_est]?=?BM3D（y?z?sigma?profile?print_to_screen）
%
%??!?The?function?can?work?without?any?of?the?input?arguments?
%???in?which?case?the?internal?default?ones?are?used?!
%?
%??BASIC?USAGE?EXAMPLES:
%
%?????Case?1）?Using?the?default?parameters?（i.e.?image?name?sigma?etc.）
%?
%??????[PSNR?y_est]?=?BM3D;
%?
%?????Case?2）?Using?an?external?noisy?image:
%
%??????%?Read?a?grayscale?image?and?scale?its?intensities?in?range?[01]
%??????y?=?im2double（imread（‘Cameraman256.png‘））;?
%??????%?Generate?the?same?seed?used?in?the?experimental?results?of?[1]
%??????randn（‘seed‘?0）;
%??????%?Standard?deviation?of?the?noise?---?corresponding?to?intensity?
%??????%??range?[0255]?despite?that?the?input?was?scaled?in?[01]
%??????sigma?=?25;
%??????%?Add?the?AWGN?with?zero?mean?and?standard?deviation?‘sigma‘
%??????z?=?y?+?（sigma/255）*randn（size（y））;
%??????%?Denoise?‘z‘.?The?denoised?image?is?‘y_est‘?and?‘NA?=?1‘?because?
%??????%??the?true?image?was?not?provided
%??????[NA?y_est]?=?BM3D（1?z?sigma）;?
%??????%?Compute?the?putput?PSNR
%??????PSNR?=?10*log10（1/mean（（y（:）-y_est（:））.^2））
%??????%?show?the?noisy?image?‘z‘?and?the?denoised?‘y_est‘
%??????figure;?imshow（z）;???
%??????figure;?imshow（y_est）;
%?
%?????Case?3）?If?the?original?image?y?is?provided?as?the?first?input?
%??????argument?then?some?additional?information?is?printed?（PSNRs?
%??????figures?etc.）.?That?is?“[NA?y_est]?=?BM3D（1?z?sigma）;“?in?the
%??????above?code?should?be?replaced?with:
%?
%??????[PSNR?y_est]?=?BM3D（y?z?sigma）;
%?
%?
%??INPUT?ARGUMENTS?（OPTIONAL）:
%
%?????1）?y?（matrix?M?x?N）:?Noise-free?image?（needed?for?computing?PSNR）
%???????????????????????????replace?with?the?scalar?1?if?not?available.
%?????2）?z?（matrix?M?x?N）:?Noisy?image?（intensities?in?range?[01]?or?[0255]）
%?????3）?sigma?（double）??:?Std.?dev.?of?the?noise?（corresponding?to?intensities
%??????????????????????????in?range?[0255]?even?if?the?range?of?z?is?[01]）
%?????4）?profile?（char）??:?‘np‘?-->?Normal?Profile?
%??????????????????????????‘lc‘?-->?Fast?Profile
%?????5）?print_to_screen?:?0?-->?do?not?print?output?information?（and?do?
%????????????????????????????????not?plot?figures）
%??????????????????????????1?-->?print?information?and?plot?figures
%
%??OUTPUTS:
%?????1）?PSNR?（double）??????????:?Output?PSNR?（dB）?only?if?the?original?
%?????????????????????????????????image?is?available?otherwise?PSNR?=?0???????

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

?????文件??????21697??2009-06-17?14:55??BM3D\BM3D.m

?????文件??????17116??2009-06-17?14:54??BM3D\BM3DDEB.m

?????文件??????17668??2009-06-17?14:58??BM3D\BM3DSHARP.m

?????文件?????180038??2009-06-17?13:08??BM3D\bm3d_thr.mexa64

?????文件?????198707??2009-05-27?10:31??BM3D\bm3d_thr.mexglx

?????文件?????200704??2007-01-17?14:17??BM3D\bm3d_thr.mexw32

?????文件?????195584??2008-10-17?14:52??BM3D\bm3d_thr.mexw64

?????文件?????110712??2009-06-17?13:08??BM3D\bm3d_thr_color.mexa64

?????文件?????158284??2008-11-18?11:41??BM3D\bm3d_thr_color.mexglx

?????文件?????151552??2008-11-18?17:34??BM3D\bm3d_thr_color.mexw32

?????文件?????124928??2008-10-17?15:32??BM3D\bm3d_thr_color.mexw64

?????文件?????175956??2009-06-17?13:08??BM3D\bm3d_thr_colored_noise.mexa64

?????文件?????260360??2008-11-18?11:44??BM3D\bm3d_thr_colored_noise.mexglx

?????文件?????217088??2008-11-18?19:14??BM3D\bm3d_thr_colored_noise.mexw32

?????文件?????196608??2008-10-16?19:06??BM3D\bm3d_thr_colored_noise.mexw64

?????文件?????144444??2009-06-17?13:08??BM3D\bm3d_thr_sharpen_var.mexa64

?????文件?????235818??2008-11-18?11:49??BM3D\bm3d_thr_sharpen_var.mexglx

?????文件?????188416??2008-11-18?17:11??BM3D\bm3d_thr_sharpen_var.mexw32

?????文件?????158208??2008-10-17?12:26??BM3D\bm3d_thr_sharpen_var.mexw64

?????文件?????204696??2009-06-17?13:08??BM3D\bm3d_thr_video.mexa64

?????文件?????166577??2008-11-20?12:11??BM3D\bm3d_thr_video.mexglx

?????文件?????196608??2007-03-12?00:03??BM3D\bm3d_thr_video.mexw32

?????文件?????193536??2008-11-19?23:25??BM3D\bm3d_thr_video.mexw64

?????文件?????122697??2009-06-17?13:08??BM3D\bm3d_wiener.mexa64

?????文件?????129108??2009-05-27?10:31??BM3D\bm3d_wiener.mexglx

?????文件?????131072??2007-03-06?15:51??BM3D\bm3d_wiener.mexw32

?????文件?????144896??2008-10-17?14:56??BM3D\bm3d_wiener.mexw64

?????文件?????122779??2009-06-17?13:08??BM3D\bm3d_wiener_color.mexa64

?????文件?????170317??2008-11-18?11:41??BM3D\bm3d_wiener_color.mexglx

?????文件?????159744??2008-11-18?17:50??BM3D\bm3d_wiener_color.mexw32

............此處省略25個文件信息