matlab image noise detection

这里使用图像去噪。我想从一些有噪声的图像中滤除噪声。噪声介绍一些matlab代码

DEMO_PYF_online.m
Handlehtml
.svn
Contents.html
Contents.m
DEMO_NLMSAP_cameraman.html
_readmefirst_.txt
cdw.html
cdw.m
expandstr.html
expandstr.m
getfilenum.html
getfilenum.m
jsalmon.xsl
lsw.html
lsw.m
publish_jo.m
rdelete.html
rdelete.m
rdir.html
rdir.m
renamefile.html
renamefile.m
renumberfile.html
renumberfile.m
rrmdir.html
rrmdir.m
LICENSE.txt
README.txt
data
CurvedBand.bmp
Ridges.png
USA_flag.png
barbara.png
barbara256.png
blob.png
boat.png
bridge.png
cameraman.png
chessboard.png
couple.png
fingerprint.png
flinstones.png
hill.png
house.png
lena.png
man.png
mandrill_gray.png
peppers256.png
swoosh.png
functions
EdgeMirror.m
LF.m
NLM.c
NLM.mexglx
Wavelet_cycle_denoising.m
YF_Curvelet_fast_precompute.m
YF_LF_fast_precompute.m
YF_WaveletCycle_fast_precompute.m
YF_yann.c
YF_yann.mexglx
tools
.svn
MSE.m
max2.m
mean2.m
min2.m
plotimage.m
psnr.m
ssim.m
sum2.m