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1 September 1990 Color image transmission system for prepress with ADCT compression algorithm
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Proceedings Volume 1360, Visual Communications and Image Processing '90: Fifth in a Series; (1990) https://doi.org/10.1117/12.24167
Event: Visual Communications and Image Processing '90, 1990, Lausanne, Switzerland
Abstract
This paper outlines the compression and transmission system developed for high- quality color image data for prepress. This system has resulted in highly-efficient compression of color image data by using DCT(Discrete Cosine Transform) - SQ(Scalar Quantization) coding scheme adopted as the basic algorithm of the international standard for color and still picture coding in ISO. This system allows selection of a compression ratio in the range of 1/2 - 1 /50. As a result of evaluations a quality image picture for printing is obtained at a data compression ratio ranging from 1/5 - 1/10. By using the newly-developed high-speed CODEC LSIs, this system has enabled real-time data transmission to 64Kbps digital lines.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hiroyuki Hasegawa, Masashi Sugiura, Hideyuki Ono, Naoki Kurakami, and Takao Omachi "Color image transmission system for prepress with ADCT compression algorithm", Proc. SPIE 1360, Visual Communications and Image Processing '90: Fifth in a Series, (1 September 1990); https://doi.org/10.1117/12.24167
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