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Advancements in digital technologies make it easy to modify the content of digital images. Hence, ensuring digital images integrity and authenticity is necessary to protect them against various attacks that manipulate them. We present a…

密码学与安全 · 计算机科学 2025-02-27 Sudev Kumar Padhi , Archana Tiwari , Sk. Subidh Ali

We propose adversarial embedding, a new steganography and watermarking technique that embeds secret information within images. The key idea of our method is to use deep neural networks for image classification and adversarial attacks to…

密码学与安全 · 计算机科学 2019-12-04 Salah Ghamizi , Maxime Cordy , Mike Papadakis , Yves Le Traon

Most of the well known algorithms for watermarking of digital images involve transformation of the image data to Fourier or singular vector space. In this paper, we introduce watermarking in Hilbert transform domain for digital media.…

多媒体 · 计算机科学 2010-12-15 Rashmi Agarwal , R. Krishnan , M. S. Santhanam , K. Srinivas , K. Venugopalan

We introduce models and algorithmic foundations for graph watermarking. Our frameworks include security definitions and proofs, as well as characterizations when graph watermarking is algorithmically feasible, in spite of the fact that the…

多媒体 · 计算机科学 2016-06-01 David Eppstein , Michael T. Goodrich , Jenny Lam , Nil Mamano , Michael Mitzenmacher , Manuel Torres

Digital image watermarking has been widely used in different applications such as copyright protection of digital media, such as audio, image, and video files. Two opposing criteria of robustness and transparency are the goals of…

多媒体 · 计算机科学 2020-01-13 Mahnoosh Bagheri , Majid Mohrekesh , Nader Karimi , Shadrokh Samavi

Text watermarking plays a crucial role in ensuring the traceability and accountability of large language model (LLM) outputs and mitigating misuse. While promising, most existing methods assume perfect pseudorandomness. In practice,…

统计理论 · 数学 2026-01-21 T. Tony Cai , Xiang Li , Qi Long , Weijie J. Su , Garrett G. Wen

The rapid advancement of large language models (LLMs) has raised concerns regarding their potential misuse, particularly in generating fake news and misinformation. To address these risks, watermarking techniques for autoregressive language…

密码学与安全 · 计算机科学 2025-06-24 Koichi Nagatsuka , Terufumi Morishita , Yasuhiro Sogawa

This paper is allocated to CDMA digital images watermarking for ownership verification and image authentication applications, which for more security, watermark W is converted to a sequence and then a random binary sequence R of size n is…

密码学与安全 · 计算机科学 2012-06-20 Mehdi Khalili

Non-regular sampling can reduce aliasing at the expense of noise. Recently, it has been shown that non-regular sampling can be carried out using a conventional regular imaging sensor when the surface of its individual pixels is partially…

图像与视频处理 · 电气工程与系统科学 2022-03-02 Simon Grosche , Jürgen Seiler , André Kaup

Watermarking of deep neural networks (DNNs) has gained significant traction in recent years, with numerous (watermarking) strategies being proposed as mechanisms that can help verify the ownership of a DNN in scenarios where these models…

密码学与安全 · 计算机科学 2024-06-04 Giulio Pagnotta , Dorjan Hitaj , Briland Hitaj , Fernando Perez-Cruz , Luigi V. Mancini

Digital watermarking technique has been presented and widely researched to solve some important issues in the digital world, such as copyright protection, copy protection and content authentication. Several robust watermarking schemes based…

多媒体 · 计算机科学 2011-01-27 J. Anitha , S. Immanuel Alex Pandian

An algorithm of improving the performance of iterative decoding on perpendicular magnetic recording is presented. This algorithm follows on the authors' previous works on the parallel and serial concatenated turbo codes and low-density…

信息论 · 计算机科学 2007-07-13 E. Papagiannis , C. Tjhai , M. Ahmed , M. Ambroze , M. Tomlinson

Watermarking is an important tool for promoting the responsible use of large language models (LLMs). Existing watermarks insert a signal into generated tokens that either flags LLM-generated text (zero-bit watermarking) or encodes more…

机器学习 · 计算机科学 2026-05-25 Atefeh Gilani , Sajani Vithana , Carol Xuan Long , Oliver Kosut , Lalitha Sankar , Flavio P. Calmon

Embedding watermarks into the output of generative models is essential for establishing copyright and verifiable ownership over the generated content. Emerging diffusion model watermarking methods either embed watermarks in the frequency…

图像与视频处理 · 电气工程与系统科学 2025-02-18 Yunzhuo Chen , Jordan Vice , Naveed Akhtar , Nur Al Hasan Haldar , Ajmal Mian

This work proposes a method for underwater image enhancement using the principle of histogram equalization. Since underwater images have a global strong dominant colour, their colourfulness and contrast are often degraded. Before applying…

图像与视频处理 · 电气工程与系统科学 2021-09-21 Anushka Yadav , Mayank Upadhyay , Ghanapriya Singh

Recent studies on deep watermarking have predominantly focused on in-processing watermarking, which integrates the watermarking process into image generation. However, post-processing watermarking, which embeds watermarks after image…

计算机视觉与模式识别 · 计算机科学 2025-09-04 Tzuhsuan Huang , Cheng Yu Yeo , Tsai-Ling Huang , Hong-Han Shuai , Wen-Huang Cheng , Jun-Cheng Chen

To ensure the responsible distribution and use of open-source deep neural networks (DNNs), DNN watermarking has become a crucial technique to trace and verify unauthorized model replication or misuse. In practice, black-box watermarks…

密码学与安全 · 计算机科学 2026-02-04 Huming Qiu , Mi Zhang , Junjie Sun , Peiyi Chen , Xiaohan Zhang , Min Yang

Due to the current progress in Internet, digital contents (video, audio and images) are widely used. Distribution of multimedia contents is now faster and it allows for easy unauthorized reproduction of information. Digital watermarking…

密码学与安全 · 计算机科学 2019-10-25 Mohamed Hamidi , Mohamed El Haziti , Hocine Cherifi , Driss Aboutajdine

In this paper, we investigate an additive video watermarking method in H.264 standard in presence of the Laplacian noise. In some applications, due to the loss of some pixels or a region of a frame, we resort to Laplacian noise rather than…

多媒体 · 计算机科学 2015-06-05 Nematollah Zarmehi , Morteza Banagar , Mohammad Ali Akhaee

We propose a novel scheme for watermarking of digital images based on singular value decomposition (SVD), which makes use of the fact that the SVD subspace preserves significant amount of information of an image, as compared to its singular…

多媒体 · 计算机科学 2008-08-05 Chirag Jain , Siddharth Arora , Prasanta K. Panigrahi