GIF Files

GIF is a data directory which contains examples of GIF files.

GIF File Characteristics:

• binary
• Color (but no more than 256 colors, from a palette)
• 2D
• Lossless compression
• multiple images

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Reference:

1. Graphics Interchange Format, version 87a
   Compuserve,
   June 15, 1987
2. Graphics Interchange Format, version 89a
   Compuserve,
   31 July 1990

Sample Files:

• apollonian_gasket.gif, an image of the fractal shape known as the Apollonian gasket.
• apollonian_gasket.png, a PNG version;
• aquarium.gif, a model of Greg Hood's new surf aquarium;
• aquarium.png, a PNG version;
• autumn_leaves.gif, a frieze of autumn leaves.
• autumn_leaves.png, a PNG version;
• bali.gif, a hillside in Bali;
• bali.png, a PNG version.
• bell_206.gif, the Bell 206 helicopter;
• bell_206.png, a PNG version.
• bell_430.gif, the Bell 430 helicopter;
• bell_430.png, a PNG version.
• bell_v22.gif, the Boeing-Bell V22 Osprey;
• bell_v22.png, a PNG version.
• brain.gif, a brain;
• brain.png, a PNG version.
• brain_top_view.gif, a brain;
• brain_top_view.png, a PNG version.
• clockspeeds.gif, a graph of computer processor clockspeeds;
• clockspeeds.png, a PNG version.
• czoch.gif, an image of Czochralski crystal growth;
• czoch.png, a PNG version.
• dla.gif, an image of a structure created by diffusion-limited aggregation.
• dla.png, a PNG version.
• fish.gif, a little fish cartoon.
• fish.png, a PNG version.
• flattened_brain.gif, an flattened image of a brain.
• flattened_brain.png, a PNG version.
• fool.gif, a screenshot from "The Fool's Errand".
• fool.png, a PNG version.
• fractal_tree.gif, a photograph of a tree suggesting a fractal structure.
• fractal_tree.png, a PNG version.
• hershey.gif, a candy bag;
• hershey.png, a PNG version.
• lineup_16.gif, how to line up 16 things;
• lineup_16.png, a PNG version.
• math_emporium.gif, the layout of Virginia Tech's Math Emporium;
• math_emporium.png, a PNG version.
• move3.gif, an optical illusion of movement;
• move3.png, a PNG version.
• mri.gif, an MRI;
• mri.png, a PNG version.
• polyfish_lines.gif, a "drawing" of a fish;
• polyfish_lines.png, a PNG version.
• prototein.gif, a schematic of some "proto-teins";
• prototein.png, a PNG version.
• scan_blobs.gif, some cells on a checkerboard;
• scan_blobs.png, a PNG version.
• scan_groups.gif, some cells merged into groups;
• scan_groups.png, a PNG version.
• sc_logo.gif, the logo for the Department of Scientific Computing.
• sc_logo.png, a PNG version.
• scs_logo.gif, the logo for the former School of Computational Science.
• scs_logo.png, a PNG version.
• sierpinski.gif, the Sierpinski triangle.
• sierpinski.png, a PNG version.
• underwater_bmx.gif, a slightly blurred image of a bicycle rider on a diving board.
• underwater_bmx.png, a PNG version.
• usa_graph.gif
• usa_graph.png, a PNG version.
• visual_tract.gif, the connection between the eyes and the brain.
• visual_tract.png, a PNG version.
• worms.gif
• worms.png, a PNG version.

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