Title

一種基於DCT低頻的數字水印算法

Translated Titles

A Digital Watermarking Algorithm Based on DCT Low Frequency

Authors

王虹(Hong Wang);高揚(Yang Gao);紀雅莉(Ya-Li Ji)

Key Words

數字水印 ; DCT ; 魯棒性 ; digital watermarking ; DCT ; robust

PublicationName

武漢理工大學學報(信息與管理工程版)

Volume or Term/Year and Month of Publication

27卷5期(2005 / 10 / 01)

Page #

31 - 34

Content Language

簡體中文

Chinese Abstract

隨著Internet和多媒體技術的發展,數字水印在數字產品的版權保護、安全傳輸和保密通信等方面有巨大應用前景。研究了一種圖像水印技術,該算法利用人類視覺系統(HVS)的特性,根據JPEG量化表自適應地調整,採用隨機置亂變換的方法進行空域關係調整,將水印嵌入到圖像的DCT低頻分量中。實驗結果表明,該算法具有較好的安全性和魯棒性。

English Abstract

With the development of Internet and multimedia technology, the digital watermarking has already been widely used in copyright protection, secure transmission, and confidential communication. An image digital watermarking algorithm is presented which uses the characters of the human vision system (HVS). According to the adaptation of JPEG quantification tables, watermarking is embedded in DCT low frequency of the image. Experimental results demonstrate that the watermarking is invisible and robust against common image compression and noise.

Topic Category 基礎與應用科學 > 資訊科學
社會科學 > 管理學