Setup ImageMagick on CentOS 6

source: Install ImageMagick on CentOS 6

First install dependencies:
yum -y groupinstall 'Development Tools'
yum -y install bzip2-devel freetype-devel libjpeg-devel libpng-devel libtiff-devel giflib-devel zlib-devel ghostscript-devel djvulibre-devel libwmf-devel jasper-devel libtool-ltdl-devel libX11-devel libXext-devel libXt-devel lcms-devel libxml2-devel librsvg2-devel OpenEXR-devel php-devel

Download the source
# wget http://www.imagemagick.org/download/ImageMagick.tar.gz

Now for the installation routine
# tar xvf ImageMagick.tar.gz
# cd ImageMagick*
# ./configure
# make
# make install

Verify that the compile and install were successful:
# convert --version
Troubleshooting: if convert command did not show up try logging out and in.