Open Access
A Digital Watermarking Algorithm Based On DCT and DWT
TLDR
This paper introduces an algorithm of digital watermarking based on Discrete Cosine Transform and Discrete Wavelet Transform which is invisible and has good robustness for some common image processing operations.Abstract:
This paper introduces an algorithm of digital watermarking based on Discrete Cosine Transform(DCT) and Discrete Wavelet Transform(DWT). Accoring to the characters of human vision, in this algorithm, the information of digital watermarking which has been discrete Cosine transformed, is put into the high frequency band of the image which has been wavelet transformed. Then distills the digital watermarking with the help of the original image and the watermarking image. The simulation results show that this algorithm is invisible and has good robustness for some common image processing operations.read more
Citations
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Proceedings ArticleDOI
Protecting Intellectual Property of Deep Neural Networks with Watermarking
TL;DR: By extending the intrinsic generalization and memorization capabilities of deep neural networks, the models to learn specially crafted watermarks at training and activate with pre-specified predictions when observing the watermark patterns at inference, this paper generalizes the "digital watermarking'' concept from multimedia ownership verification to deep neural network (DNN) models.
Journal ArticleDOI
Secure and Robust Digital Image Watermarking Using Coefficient Differencing and Chaotic Encryption
Nazir A. Loan,Nasir N. Hurrah,Shabir A. Parah,Jong Weon Lee,Javaid A. Sheikh,G. Mohiuddin Bhat +5 more
TL;DR: A chaotic encryption-based blind digital image watermarking technique applicable to both grayscale and color images that can be used in applications like e-healthcare and telemedicine to robustly hide electronic health records in medical images.
Proceedings ArticleDOI
Distortion Agnostic Deep Watermarking
TL;DR: This paper proposes a new framework for distortion-agnostic watermarking, where the image distortion is not explicitly modeled during training, and the robustness of the system comes from two sources: adversarial training and channel coding.
Journal ArticleDOI
Copyright Protection for E-Government Document Images
TL;DR: The proposed copyright protection scheme combines the discrete cosine transform (DCT) and singular value decomposition (SVD) using a control parameter to avoid the false-positive problem and can improve the image quality GA-based evolution.
Journal ArticleDOI
Analysis of P-QRS-T Components Modified by Blind Watermarking Technique Within the Electrocardiogram Signal for Authentication in Wireless Telecardiology Using DWT
TL;DR: A novel session based blind watermarking method with secret key by embedding binary watermark image into (Electrocardiogram) ECG signal is proposed and the generated watermarked signal having an acceptable level of imperceptibility and distortion is compared to the OriginalECG signal.
References
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Journal ArticleDOI
Image coding based on a fractal theory of iterated contractive image transformations
TL;DR: The author proposes an independent and novel approach to image coding, based on a fractal theory of iterated transformations, that relies on the assumption that image redundancy can be efficiently exploited through self-transformability on a block-wise basis and approximates an original image by a Fractal image.
Journal ArticleDOI
Some general methods for tampering with watermarks
TL;DR: In this paper, the authors discuss to what extent a watermark can be resistant to tampering and describe a variety of possible attacks on the watermark and its resilience to normal signal transformations.
Proceedings ArticleDOI
Copyright protection of images using robust digital signatures
Nikos Nikolaidis,Ioannis Pitas +1 more
TL;DR: A method for copyright protection of digital images is presented by embedding an "invisible" signal, known as digital signature, in the digital image by minimizing the energy content of the signature signal in higher frequencies.
Journal ArticleDOI
A new wavelet based logo-watermarking scheme
TL;DR: A wavelet based logo-watermarking scheme for copyright protection of digital image using a visually meaningful gray scale logo as watermark is presented and is robust to wide variety of attacks.
Journal ArticleDOI
Digital image watermarking using balanced multiwavelets
TL;DR: A robust watermarking algorithm using balanced multiwavelet transform is proposed, which achieves simultaneous orthogonality and symmetry without requiring any input prefiltering, making this transform a good candidate for real-timeWatermarking implementations such as audio broadcast monitoring and DVD video water marking.