Looked up some relevant information, ImageMagick is the third party processing picture software, the function is more than GD, powerful, but whether can perfect replace GD, there is no test, insurance, two are installed bar, and will not produce conflict, by default, the system has automatic detection ImageMagick and GD , and priority is given to using ImageMagick.
Installation process:
Yum Install ImageMagick
Yum Install Imagemagick-devel
Yum install php-pear [for PECL]
pecl Install Imagick #注: Prompt during installation ERROR: ' Phpize ' failed, you can perform yum install Php-devel and then reinstall it.
after the final installation is complete, you will be prompted to add the php.ini extension=imagick.so
Vim/etc/php.ini
Extension=imagick.so
Restart PHP-FPM and Nginx
Then you can see Imagick in Phpinfo ().
PHP installation ImageMagick and Imagick picture processing module