[magick-users] rectangle -< 2 squares

[Al Bogner]

I use ImageMagick 6.4.0 04/14/08 Q16 (Suse Linux 10.3) and would like to do 
the following:


There is an image (rectangle) with a ratio of 2:1 in landscape format.

How can I split it in 2 squares?

IHow can I crop the rectangular to a square by cropping the left and right 
side?

I can imagine to do this by calcualting the size, but is there an easier way?

Al