|
Web
Education
An improved robust image watermarking by using different ...
Image watermarking technique is an alternative solution to protecting digital image copyright. This paper proposed a new embedding technique based on different embedding strengths for embedding a watermark. An image is divided into non-overlapping blocks of 8 × 8 pixels. The variance pixel value was computed for each image block. Image blocks with the highest variance value were selected for ......
 Invisible Watermarking Based on Creation and Robust ...
watermark using the input user watermark (logo) and attributes of the host image. This facilitates the homogeneous fusion of a watermark with the cover image, preserves the quality of the host image, and allows robust insertion-extraction. Watermark creation consists of two distinct phases.
Contourlet-based image adaptive watermarking - ScienceDirect
3. Contourlet-based image adaptive watermarking (CIAW) scheme. The watermark W to be embedded can be arranged as a set of matrices W s, d (i, j) with the size M W ×N W and the pseudo-random binary values {−1, 1}.
Copyright Protection for Digital Colour Images Using Dual ...
The main objective of the majority of research in Digital Image Watermarking technique is to improve the robustness of attacks.In this paper, a new algorithm has been proposed based on Discrete Wavelet Transform, Discrete Cosine Transformation in association with Singular Value Decomposition for embedding the dual watermark which provides an efficient copyright protection.Here the primary ......
OSA | An optimized watermarking scheme using an encrypted ...
In this paper, a novel secure optimal image watermarking scheme using an encrypted gyrator transform computer generated hologram (CGH) in the contourlet domain is presented. A new encrypted CGH technique, which is based on the gyrator transform, the random phase mask, the three-step phase-shifting interferometry and the Fibonacci transform, has been proposed to produce a hologram of a ...
Digital Image Watermarking Techniques: A Review
Advancements in science and technology have introduced the need to protect data, authenticate data, integrate data, assert ownership, content labelling and security. Digital Watermarking schemes protect all forms of digital data. Digital Image Watermarking can be applied to gray scale, halftone, color, medical and 3D images. The process of watermarking can be broadly classified into three ......
An HVS Inspired Robust Non-blind Watermarking Scheme in ...
Fazli and M. Moeini, “ A robust image watermarking method based on DWT, DCT, and SVD using a new technique for correction of main geometric attacks,” Optik-Int. J. Light Electron Opt. 127 (2), 964–972 (2016).
A new aspect in robust digital watermarking - English ...
In-text: (Robust Watermarking Scheme in YCbCr Color Space using SVD and DKT-DCT Hybrid Wavelet Transforms, 2019) Your Bibliography: International Journal of Innovative Technology and Exploring Engineering, 2019.Robust Watermarking Scheme in YCbCr Color Space using SVD and DKT-DCT Hybrid Wavelet Transforms. 9(2), pp.3697-3700....
ROBUST CONTENT-BASED VIDEO WATERMARKING EXPLOITING MOTION ...
Keywords: Digital watermarking, Video sequence, Entropy masking. Abstract: A major class of image and video watermarking algorithms, i.e. content-based watermarking, is based on the concept of Human Visual System (HVS) in order to adapt more efficiently to the local characteristics of the host signal.
IET Digital Library: Efficient wavelet-based perceptual ...
In this study, a robust wavelet-based fingerprint image watermarking scheme using an efficient just perceptual weighting (JPW) model has been proposed. The JPW model exploits three human visual system characteristics, namely: spatial frequency sensitivity, local brightness masking and texture masking, to compute a weight for each wavelet coefficient, which is then used to control the amplitude ......
|
