Installazione

The Imagick extension can be compiled directly into PHP or as a shared library. As it is a PECL extension, it can simply be installed with the following command line.
pecl install imagick
Following installation from PECL this line needs to be added to the php.ini file.
extension=imagick.so
With the Imagick extension installed, the system is now right for image creation, processing, and manipulation.
OR use yum if you are using Fedora Core/CentOS/RHEL 5:
# yum install ImageMagick