SFINX software tree - Image - GIF

GIF ((C) Compuserve) is a image format with built-in compression. Limitations: 8 bit color.

GIF images are often used on the Wold Wide Web, since originally, only GIF and X bitmaps were supported.

GIF image manipulation

For Web pages, one often wants to make GIF images interlaced and transparant for nice effects. This can be done using giftool.

Or, one can convert a GIF image to one of the PNM formats, and then use one of the ImageMagic utilities to modify the image.

Other manipulations, such as colormap changes, can be accomplished with xv.

Creating GIF images

Some programs include GIF as an output device (e.g. PGplot), but most often a GIF image is created by converting from some other image format, using xv or the ImageMagic tools.

Converting to other image types

Converting GIFs to other image formats can be done by xv or the ImageMagic tools.

Printing GIF images

The latest version of xv can do it directly. Otherwise, first convert to PostScript and then print the PostScript file.

David.Jansen@strw.leidenuniv.nl

Last modified: Tue Oct 29 16:27:56 MET 1996