[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Octave Image Processing Question.
From: |
etienne |
Subject: |
Re: Octave Image Processing Question. |
Date: |
Thu, 19 Nov 2009 21:57:17 -0800 |
User-agent: |
Internet Messaging Program (IMP) H3 (4.3) |
Quoting Diyar Saraço?lu <address@hidden> (Thu, 19 Nov
2009 22:30:43 +0200):
Hi Diyar,
I can help a little w/ your 2nd question, but since I use an old
octave, ymmv w/ the latest version.
### As you see, this octave is not brand new
version
ans = 3.0.3
which medfilt2
medfilt2 is the user-defined function from the file
/home/etienne/prog/octave/svn-octave-forge/octave-forge/main/image-1.0.8/inst/medfilt2.m
### Now with the filter, which seems to work
[xx,yy] = meshgrid (1:100); zz = sin(xx/8.*yy/16+xx/12+yy/20); zzn =
zz + randn (size (zz)) .* 0.3; zzf = medfilt2 (zzn,ones(8,8),"ones");
imshow (([zzn, fliplr(zzf)]-min([zzn, fliplr(zzf)](:)))/4)
[xx,yy] = meshgrid (1:100); zz = sin(xx/8.*yy/16+xx/12+yy/20); zzn =
zz + randn (size (zz)) .* 0.3; zzf = medfilt2 (zzn,ones(8,8)); imshow
(([zzn, fliplr(zzf)]-min([zzn, fliplr(zzf)](:)))/4)
Hth,
Etienne
Hi ,
I am new at octave. I am using Image package for image processing.
I have 3 question.
1) Is there a "Wiener" filter at Octave?
2) In medfilt2 filter. It is written that MEDFILT2(A, [domain,
padding]) is format. In this format i could not give second and
third parameter. What is domain and padding.
3) Is there any octave examples, specially in image processing. I
could not find in internet.
Thank you for your help.
diyar
--
"Forse Altri Contera Con Miglior Plettero"
--
http://www.isr.ist.utl.pt/~etienne
----------------------------------------------------------------
This message was sent using IMP, the Internet Messaging Program.