Re: first steps on octave

[Søren Hauberg]

Okay, that's your problem then. Does Suse provide an octave-forge 
package? If so, I'd recommend installing that. If not then I think you 
have to install octave + the image package from source.

Søren

Damien SIRJACOBS skrev:
> Hi,
> Yes you're right I downloaded imread from the octave website, to try running
> an octave function just to check octave works well before trying to find why
> my matlab routines do not work.
>
> Damien
>
> -----Message d'origine-----
> De : Søren Hauberg [mailto:address@hidden
> Envoyé : lundi 18 juin 2007 18:27
> À : address@hidden
> Cc : octave help
> Objet : Re: first steps on octave
>
>
> Hi,
>    How did you get 'imread.m'?  It seems to me that you're using an
> older version of Octave with a new version of imread? But I'm guessing
> here...
>
> Søren
>
> Damien SIRJACOBS skrev:
> > Hi,
> >
> > THanks for your answer!
> >
> > Yes I hope the informatic center will upgrade octave, I asked them.
> >
> > Meanwhile I tried your suggestion.
> > Indeed, modifying to IMAGEPATH changed the reaction of octave to:
> >
> > octave:11> imread("Noamneige.jpg");
> > sh: line 1: identify: command not found
> > error: `regexp' undefined near line 155 column 7
> > error: evaluating assignment expression near line 155, column 5
> > error: called from `imread:re_grab' in file
> > `/home/gher/sirjacob/Lib/octave/image/imread.m'
> > error: evaluating assignment expression near line 75, column 11
> > error: called from `imread' in file
> > `/home/gher/sirjacob/Lib/octave/image/imread.m'
> >
> > as often, behind a problem, some others..
> > any clue?
> >
> > Thanks again
> >
> > Damien
> >
> > -----Message d'origine-----
> > De : Søren Hauberg [mailto:address@hidden
> > Envoyé : lundi 18 juin 2007 17:11
> > À : address@hidden
> > Cc : address@hidden
> > Objet : Re: first steps on octave
> >
> >
> > Hi,
> >    First of all v2.1.64 is quite old, so you might consider upgrading.
> > But now to you problem...
> >
> > 'loadimage' can't load jpeg images. Basically I think it just handles
> > Octaves own image format (so it isn't that useful for most purposes).
> >
> > The problem with imread is a known bug that has been fixed in more
> > recent versions of octave-forge. The fix is however quite simple. Just
> > open the 'imread' file (in your case,
> > '/home/gher/sirjacob/Lib/octave/image/imread.m') in a text editor and
> > replace all appearances (I think there is only one of 'IMAGE_PATH' with
> > 'IMAGEPATH' (just remove the underscore).
> >
> > Hope that helps,
> > Søren
> >
> > Damien SIRJACOBS skrev:
> > > Hello,
> > >
> > > I am discovering octave v2.1.64 (x86-64-suse-linux), just installed on
> the
> > > sun cluster computer of our university by the informatic team.
> > > As first simple check of its functionning, I have problems with opening
> of
> > > files, even with the octave included function loadimage:
> > >
> > > trying opening jpeg image with loadimage returns the following problem:
> > >
> > > octave:11> loadimage('Noamneige.jpg');
> > > error: load: /home/gher/sirjacob/Lib/octave/image/Noamneige.jpg:
> > > inconsistent number of columns near line 2
> > > error: load: unable to extract matrix size from file
> > > `/home/gher/sirjacob/Lib/octave/image/Noamneige.jpg'
> > > error: called from `loadimage' in file
> > > `/usr/share/octave/2.1.64/m/image/loadimage.m'
> > >
> > >
> > > trying opening jpeg image with the attached imread returns the following
> > > problem:
> > >
> > > octave:9> imread("Noamneige.jpg");
> > > error: `IMAGE_PATH' undefined near line 45 column 23
> > > error: evaluating argument list element number 1
> > > error: evaluating assignment expression near line 45, column 8
> > > error: called from `imread' in file
> > > `/home/gher/sirjacob/Lib/octave/image/imread.m'
> > >
> > > Could you please help me in finding the source of the problem?
> > >
> > > Thanking you in advance,
> > >
> > > Sincerely,
> > >
> > > Damien Sirjacobs
> > >
> > > Research Engineer - Project RECOLOUR-BELCOLOUR
> > > GeoHydrodynamics and Environmental Research  - GHER
> > > Department of Astrophysics, Geophysics and Oceanography
> > > Liège University
> > > Allée de la Physique, B5
> > > B-4000 Sart-Tilman (Liège)
> > > Belgium
> > > phone: +32 4 366.36.48
> > > fax: +32 4 366.23.55
> > > email: address@hidden
> > > http://modb.oce.ulg.ac.be/
> > >
> > >
> > > ------------------------------------------------------------------------
> > >
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