[CentOS] Image resize, convert

yum install ImageMagick

Usage:

convert example.png example.jpg

convert example.png -resize 200 example.png

#width

convert example.png -resize x200 example.png

# height

If you have any problems try command below

yum install php-gd glib glib2 libpng libjpeg libtiff ghostscript freetype ImageMagick ImageMagick-perl