[magick-users] Re: extent not using background color

[John J Foerch]

"Neil Aggarwal" <neil at JAMMConsulting.com> writes:
> Hello:
>
> I used yum to install ImageMagick.x86_64.6.2.8.0-3.el5.4 
> on one of my servers running CentOS 5.1
>
> I have an image which is 650 x 385 and am trying to make 
> it into a 650 x 650 image with the current content centered 
> on a white background.
>
> Here is the command I am using (All on one line):
> /usr/bin/convert -background white -extent 650x650! 
> 	+repage myImage.jpg newImage.jpg
>
> The new image has the original image at the top instead
> of centered and it filled in the new areas with black
> instead of white.
>
> Here are links to the images:
> http://jamm10.jammconsulting.com/myImage.jpg
> http://jamm10.jammconsulting.com/newImage.jpg
>
> I tried using backdrop but that does not seem available
> in the version of ImageMagick I am using.
>
> Any ideas how to get what I want?
>
> Thanks,	
> 	Neil
>
> --
> Neil Aggarwal, (832)245-7314, www.JAMMConsulting.com
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Extent supported -background and -gravity since around 6.3.0 or so.
You can achieve the same effect with earlier versions like this:

convert -size 650x650 xc:white myImage.jpg -gravity northwest -compose
over -composite newImage.jpg

John Foerch