I\'ve been searching for a way to install Image Magick on my Mountain Lion setup (where I use MAMP Pro). I did find this article, but it isn\'t specific to ML. Also found a coup
Make sure you check out Joel Farris' answer if you're using an up-to-date version of MAMP
I finally managed to get it installed properly using Homebrew and the instructions here: http://egoco.de/post/23167969231/installing-imagemagick-for-php-and-mamp
I did have to run brew doctor and brew link a couple of times to fix dependencies (and change permissions on a file or two), and use
brew install php54-imagick
rather than the one mentioned at the url.
The extension he mentions at the end (the bit you have to paste in your different ini files) is:
[imagick]
extension="/usr/local/Cellar/php54-imagick/3.1.0RC2/imagick.so"
Hope it helps!