Two bit/pixel full color encoding

G. Campbell, T. DeFanti, Jeffery E. Frederiksen, S. A. Joyce, L. Leske
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引用次数: 115

Abstract

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.
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2位/像素全彩色编码
计算机图形学中的真实感通常需要使用24位或更多的比特/像素来生成图像。本文描述了一种由作者开发的称为“彩色细胞压缩”或“CCC”的方法,该方法至少保留了有限的动画和本地更新能力,但却能以大约2比特/像素的速度生成与图像复杂性无关的非凡彩色图像。还描述了将图像分别压缩到6位、4位和3位/像素的三种中间方法。640x480图像的CCC编码过程在VAX 11/750上平均为11秒,然而,CCC方法允许使用软件查找表和传统显示硬件对这些图像进行实时解码。这三种中间方法也可以实时解码,但在VAX 11/750上编码只需要3-4秒的额外优势。
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