About GraphicsMagick QD Error (your version of GraphicsMagick limits images to 8 bits per pixel)

[Chan Kim]

Hello, 



when I read an image in octave, I get error like this



 



octave:1> I=imread('redbar.jpg')



warning: your version of GraphicsMagick limits images to 8 bits per pixel



I =



 



ans(:,:,1) =



 



 Columns 1 through 17:



 



　255  255  255  255  255  255  255  255  255  255  255  255  255  255  255  255 
 255



　…



 



I searched the net and found this link : http://wiki.octave.org/GraphicsMagick



It tells me to rebuild GraphicsMagick with suggested configure command but 
never tell me about the source. Do I have to get GraphicsMagick source from net 
net?



And in my CentOS, I have it installed (I guess it was installed when I yum 
install octave), so I have to yum remove first and do ‘config, make, make 
install’ for the GraphicsMagick?



And the link above says the octave needs to be recompiled. Then Do I have to 
receive octave source and rebuilt and install in my machine (after yum remove 
first).



I think the link should give more kind explanation about the procedure.



I have GraphicsMagick 1.3.24-1 and octave 3.4.3-2 installed.



 



Regards,



Chan