Re: Cannot read an image with imread() on Mac

[Przemek Klosowski]

On 03/07/2011 09:09 AM, conahorse wrote:
> Hi, I'm using octave 3.2.4 on a Mac with Snow Leopard. When I try to read an 
> image in the current directory I do something like:
>
> I = imread('cell.jpg')
>
> but an error occurs:
>
> Assertion failed: (semaphore_info != (SemaphoreInfo *) NULL), function 
> LockSemaphoreInfo, file magick/semaphore.c, line 525.
> panic: Abort trap -- stopping myself...


It's the same problem that plagues the Linux (Fedora) versions of 
Octave: ImageMagick requires now an initialization call 
InitializeMagick(), which wasn't done by Octave's interface to IM.

http://savannah.gnu.org/bugs/?29474
https://bugs.launchpad.net/ubuntu/+source/graphicsmagick/+bug/636021
https://bugzilla.redhat.com/show_bug.cgi?id=655569

THe distributions need to fix this in the packages, or you can compile 
your own version. I don't have a Mac, but other people on this list can 
point you to the procedure for Snow Leopard.