An Efficient Compression of Amplitude-Only Images for the Image Trading System

被引：3

作者：

Liu, Shenchuan ^{[1
]}

Sae-Tang, Wannida ^{[1
]}

Fujiyoshi, Masaaki ^{[1
]}

Kiya, Hitoshi ^{[1
]}

机构：

[1] Tokyo Metropolitan Univ, Grad Sch Syst Design, Hino, Tokyo 1910065, Japan

来源：

IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS | 2014年 / E97D卷 / 02期

基金：

日本学术振兴会;

关键词：

digital fingerprinting; trusted third party; random phase flipping; quantization; JPEG; 2000;

D O I：

10.1587/transinf.E97.D.378

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This letter proposes an efficient compression scheme for the copyright- and privacy-protected image trading system. The proposed scheme multiplies pseudo random signs to amplitude components of discrete cosine transformed coefficients before the inverse transformation is applied. The proposed scheme efficiently compresses amplitude-only image which is the inversely transformed amplitude components, and the scheme simultaneously improves the compression efficiency of phase-only image which is the inversely transformed phase components, in comparison with the conventional systems.

引用

页码：378 / 379

页数：2

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Fujiyoshi, Masaaki ;

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