文章基本信息

标题：A Novel Approach on DWT Province for Colorant Watermarking
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作者：K. Suresh Kumar
期刊名称：International Journal of Electronics Communication and Computer Technology
印刷版ISSN：2249-7838
出版年度：2014
卷号：4
期号：5
出版社：International Journal of Electronics Communication and Computer Technology
摘要：This article aims at lightweight, visionless recognition of additive spread-spectrum watermarks in the DWT domain. We focus on two host signal clatter models and two types of postulate tests for watermark recognition. As a crucial point of our work we take a closer look at the computational necessities of watermark sensors. This involves the computation of the uncovering response, stricture estimate and porch selection. We show that by switching to estimated host signal parameter approximations or even stable parameter settings we attain an astonishing enlargement in runtime performance without surrendering recognition enactment. Our tentative results on a large number of images confirm the assumption that there is not necessarily a trade-off between calculation time and exposure concert.
关键词：DWT; Images; Exposure; Watermarking; ; Spread spectrum; Threshold