Expressing with Gifs

.GIF" (tm) is CompuServe's standard for defining generalized  color
raster   images.    This   'Graphics  Interchange  Format'  allows high-quality, high-resolution graphics to be displayed on a  variety  of graphics  hardware  and is intended as an exchange and display mechanism for graphics images.  The image format described  in  this  document  is designed  to  support  current  and  future image technology and will in addition serve as a basis for future CompuServe graphics products.The main focus  of  this  document  is  to  provide  the  technical information  necessary  for  a  programmer to implement GIF encoders and decoders.  As such, some assumptions are made as to terminology relavent to graphics and programming in general.