Re: error: imread: invalid image file

[adama]

Seetha Parameswaran wrote
> This issue is still pending:
> warning: your version of GraphicsMagick limits images to 8 bits per pixel

This is an old thread, but I've been having a similar problem trying to get
Octave to find a compiled version of GraphicsMagick (using a quantum depth
of 16 bits instead of the default 8 bits).  Thought I'd post what worked for
me in case it helps others.  After compiling and installing graphicsmagick,
I had to set the following environment variable before configuring Octave. 
Otherwise, GraphicsMagick++.pc was not found during the configuration.

export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:$PKG_CONFIG_PATH

Adam



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