Visual Attention-Based Image Watermarking [PDF]
IEEE Access, 2016 Imperceptibility and robustness are two complementary but fundamental requirements of any watermarking algorithm. Low strength watermarking yields high imperceptibility but exhibits poor robustness.
Deepayan Bhowmik +2 more
doaj +2 more sources
Image enhancement using vector quantisation based interpolation [PDF]
, 2007 We present a novel method of image expansion using vector quantisation. The algorithm is inspired by fractal coding and uses a statistical model of the relationship between details at different scales of the image to interpolate detail at one octave ...
Balasuriya, S.L. +3 more
core +9 more sources
Digital watermarking scheme exploiting non-deterministic dependence for image authentication [PDF]
, 2006 Watermarking schemes for authentication purposes are characterized by three factors: security, resolution of tamper localization, and embedding distortion.
Yuan, Yinyin, Li, Chang-Tsun
core +1 more source
A contrast-sensitive reversible visible image watermarking technique [PDF]
, 2009 A reversible (also called lossless, distortion-free, or invertible) visible watermarking scheme is proposed to satisfy the applications, in which the visible watermark is expected to combat copyright piracy but can be removed to losslessly recover the ...
Xiao, R. (Rong) +4 more
core +1 more source
Reversible watermarking scheme with image-independent embedding capacity [PDF]
, 2005 Permanent distortion is one of the main drawbacks of all the irreversible watermarking schemes. Attempts to recover the original signal after the signal passing the authentication process are being made starting just a few years ago. Some common problems,
C.-T. Li, Li, Chang-Tsun
core +1 more source
Wavelet-based fragile watermarking scheme for image authentication [PDF]
, 2007 We propose a fragile watermarking scheme in the wavelet transform domain that is sensitive to all kinds of manipulations and has the ability to localize the tampered regions.
Si, Huayin, Li, Chang-Tsun
core +1 more source
Using digital watermarking to enhance security in wireless medical image transmission [PDF]
, 2010 This is the published version of the article. Copyright 2010 Mary Ann Liebert Inc.During the last few years, wireless networks have been increasingly used both inside hospitals and in patients’ homes to transmit medical information.
Tachakra, S +5 more
core +1 more source
Watermarking for multimedia security using complex wavelets [PDF]
, 2010 This paper investigates the application of complex wavelet transforms to the field of digital data hiding. Complex wavelets offer improved directional selectivity and shift invariance over their discretely sampled counterparts allowing for better ...
Bouridane, A. +10 more
core +1 more source
Digital fragile watermarking scheme for authentication of JPEG images [PDF]
, 2004 It is a common practice in transform-domain fragile watermarking schemes for authentication purposes to watermark some selected transform coefficients so as to minimise embedding distortion.
C.-T. Li, Li, Chang-Tsun
core +1 more source
An efficient watermarking technique for the protection of fingerprint images [PDF]
, 2008 This paper describes an efficient watermarking technique for use to protect fingerprint images. The rationale is to embed the watermarks into the ridges area of the fingerprint images so that the technique is inherently robust, yields imperceptible ...
Khelifi, Fouad +5 more
core +1 more source