Re: Problem with eig in Octave 3.2.4

[Martin Helm]

Am Freitag, 30. Juli 2010 14:48:19 schrieb Liviu Vladutu:
> Yes is Graphics Magick 1.3.12 and is a known issue (bug) with Octave. 3.2x.
> Probably I'll build external C++ code for accessing images inside Octave.
> I'll get back to you.
> Have a nice weekend.
> L.
> 
> On Fri, Jul 30, 2010 at 2:28 PM, Martin Helm <address@hidden> wrote:
> > Am Freitag, 30. Juli 2010 12:44:42 schrieb Liviu Vladutu:
> > > Yes it worked, sorry Martin .
> > > But I still have problems reading (with imread) a valid bmp
> > > file. I get:
> > >
> > > error: imread: invalid image file:
> >
> > /usr/local/libexec/octave/3.2.4/oct/i686-pc-linux-gnu/__magick_read__.oct:
> > > undefined symbol: _ZTIN6Magick9ExceptionE
> > > error: called from:
> > > error:   /usr/local/share/octave/3.2.4/m/image/imread.m at line 74,
> >
> > column
> >
> > >  7
> > >
> > > On Fri, Jul 30, 2010 at 1:27 PM, Martin Helm <address@hidden> wrote:
> > > > Am Freitag, 30. Juli 2010 12:00:10 schrieb Liviu Vladutu:
> > > > > V = [-0.818395 -0.315302 -0.480434
> > > > > 0.434733 0.207055 00.876433
> > > > > -0.375818 0.926128 0.032380]
> > > >
> > > > I cannot really see why this should be wrong
> > > >
> > > >  v*l*v'
> > > > ans =
> > > >
> > > >   1.0000   3.0000  -2.0000
> > > >   3.0000   5.0000   1.0000
> > > >  -2.0000   1.0000   4.0000
> > > >
> > > > (with the v you posted) gives the original matrix as it should.
> > > >
> > > > l =
> > > >
> > > > Diagonal Matrix
> > > >
> > > >  -1.5120        0        0
> > > >        0   4.9045        0
> > > >        0        0   6.6076
> > > >
> > > >
> > > > - mh
> >
> > Can you check which graphicsmagick version is installed on your system? I
> > remember there is a problem with the 1.3 versions (on my machine I work
> > with
> > 1.2.10).
> > There is also an old thread with that "undefined symbol" problem which
> > mentions libjpeg and libpng, can you check this libs as well
> >
> > http://old.nabble.com/imread-imwrite-td18142037.html
> >
> > - mh
> 
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