Two bit/pixel full color encoding

Realism in computer graphics typically requires using 24 or more bits/pixel to generate an image. This paper describes a method developed by the authors called "Color Cell Compression" or "CCC" that preserves at least a limited animation and local update capability yet yields ext...

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Bibliographic Details
Published in:Computer graphics (New York, N.Y.) N.Y.), 1986-08, Vol.20 (4), p.215-223
Main Authors: Campbell, Graham, DeFanti, Thomas A., Frederiksen, Jeff, Joyce, Stephen A., Leske, Lawrence A., Lindberg, John A., Sandin, Daniel J.
Format: Article
Language:English
Subjects:
Animation
Communication hardware, interfaces and storage
Computer graphics
Computing methodologies
Displays and imagers
Graphics systems and interfaces
Hardware
Image compression
Rasterization
Rendering
Signal processing systems
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Summary:Realism in computer graphics typically requires using 24 or more bits/pixel to generate an image. This paper describes a method developed by the authors called "Color Cell Compression" or "CCC" that preserves at least a limited animation and local update capability yet yields extraordinary-looking color images in approximately two bits/pixel independent of image complexity. Three intermediate methods of compressing images to six, four and three bits/pixel respectively are also described. The CCC encoding process for a 640 × 480 image averages 11 seconds on a VAX 11/750, however, the CCC method does permit real-time decoding of these images using software look-up tables and conventional display hardware. The three intermediate methods may also be decoded in real time but have the added advantage of requiring only 3-4 seconds for encoding on a VAX 11/750.
ISSN:0097-8930
1558-4569
DOI:10.1145/15886.15910