Quick patch for WordPress version 3.5.x

For those interested, there is a quick patch you can make to this plugin to restore functionality under WordPress 3.5.x due to the recent changes to the core WordPress WP_Image_Editor class.

At approximately line 763 in imagemagick-engine.php, change the following line from:
if (!gd_edit_image_support($post->post_mime_type))

To:
if (!wp_image_editor_supports(array('mime_type' => $post->post_mime_type)))

Save the file, replace it in your plugin folder, and you should be good to go.

http://ww.wp.xz.cn/extend/plugins/imagemagick-engine/