Re: Problem reading JPEG files

[Thomas Weber]

On Mon, Apr 12, 2010 at 04:09:02PM -0400, Anirban Jana wrote:
> Hi,
> I am trying to read JPEG files with Octave on a Itanium 2/SUSE Linux  
> platform. I have installed Octave 3.2.4 with GraphicsMagick-1.3.7 ( to  
> get rid of a semaphore error). But when I try to to read JPEG file, I get
>
> octave:1> ii=imread('optical_illusion_men.jpg');
> error: imread: invalid image file: Magick++ exception: Magick: Unable to  
> access configuration file (magic.mgk) reported by magick/blob.c:1830  
> (GetConfigureBlob)
>
> However, magic.mgk exists in  
> /usr/local/packages/GraphicsMagick/1.3.7/share/GraphicsMagick-1.3.7/config. 
> I am trying to figure out how to tell Octave that. Any suggestions?

Look at GraphicsMagick. That error message comes straight from
GraphicsMagick, not from Octave.

Can you work with GraphicsMagick and that file directly, using the 'gm'
interface?

        Thomas