Gmagick is a PHP extension to create, modify, and obtain meta-information of images using the GraphicsMagick API. GraphicsMagick prides itself as the swiss army knife of image processing. It works with over 88 major formats including DPX, GIF, JPEG, JPEG-2000, PNG, PDF, PNM, and TIFF. Gmagick consists of a main Gmagick class, a GmagickDraw class that is in effect a drawing wand, and a GmagickPixel class of which instances represent a single pixel of an image (color, opacity).
Sxwd is a multi-purpose tool for dealing with xwd images. Xwd is a C++ class which was created by merging xwd.c and xwud.c from the X11R6 distribution and porting them to GNU C++. Sxwd is a command line wrapper to exercise the member functions of xwd. Sxwd was created to manipulate the colormaps of 8-bit PsuedoColor XWD images in the production of custom USGS topographical maps. A few additional features have been added.