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Modern cameras' performance in low-light conditions remains suboptimal due to fundamental limitations in photon shot noise and sensor read noise. Generative image restoration methods have shown promising results compared to traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Xijun Wang , Prateek Chennuri , Dilshan Godaliyadda , Yu Yuan , Bole Ma , Xingguang Zhang , Hamid R. Sheikh , Stanley Chan

This research work presents a new class of non-blind information hiding algorithms that are stego-secure and robust. They are based on some finite domains iterations having the Devaney's topological chaos property. Thanks to a complete…

Cryptography and Security · Computer Science 2015-03-19 Jacques M. Bahi , Jean-François Couchot , Christophe Guyeux

Active research is going on to securely transmit a secret message or so-called steganography by using data-hiding techniques in digital images. After assessing the state-of-the-art research work, we found, most of the existing solutions are…

Cryptography and Security · Computer Science 2024-09-02 Dipnarayan Das , Asha Durafe , Vinod Patidar

Steganography conceals the secret message into the cover media, generating a stego media which can be transmitted on public channels without drawing suspicion. As its countermeasure, steganalysis mainly aims to detect whether the secret…

Cryptography and Security · Computer Science 2022-05-26 Yong Xu , Zhihua Xia , Zichi Wang , Xinpeng Zhang , Jian Weng

Personalizing large-scale diffusion models poses serious privacy risks, especially when adapting to small, sensitive datasets. A common approach is to fine-tune the model using differentially private stochastic gradient descent (DP-SGD),…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Pura Peetathawatchai , Wei-Ning Chen , Berivan Isik , Sanmi Koyejo , Albert No

Generative adversarial networks (GANs) are frequently utilized in astronomy to construct an emulator of numerical simulations. Nevertheless, training GANs can prove to be a precarious task, as they are prone to instability and often lead to…

Instrumentation and Methods for Astrophysics · Physics 2023-11-14 Xiaosheng Zhao , Yuan-Sen Ting , Kangning Diao , Yi Mao

Image hiding is often referred to as steganography, which aims to hide a secret image in a cover image of the same resolution. Many steganography models are based on genera-tive adversarial networks (GANs) and variational autoencoders…

Computer Vision and Pattern Recognition · Computer Science 2025-10-15 Chengde Lin , Xuezhu Gong , Shuxue Ding , Mingzhe Yang , Xijun Lu , Chengjun Mo

Ensuring the legal usage of deep models is crucial to promoting trustable, accountable, and responsible artificial intelligence innovation. Current passport-based methods that obfuscate model functionality for license-to-use and ownership…

Cryptography and Security · Computer Science 2024-04-04 Qi Cui , Ruohan Meng , Chaohui Xu , Chip-Hong Chang

Steganography embeds secret messages in seemingly innocuous carriers for covert communication under surveillance. Current Provably Secure Steganography (PSS) schemes based on language models can guarantee computational indistinguishability…

Cryptography and Security · Computer Science 2026-04-30 Kaiyi Pang , Minhao Bai

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…

Cryptography and Security · Computer Science 2019-12-04 Salah Ghamizi , Maxime Cordy , Mike Papadakis , Yves Le Traon

Image denoising is a fundamental and challenging task in the field of computer vision. Most supervised denoising methods learn to reconstruct clean images from noisy inputs, which have intrinsic spectral bias and tend to produce…

Computer Vision and Pattern Recognition · Computer Science 2023-09-20 Yujin Wang , Lingen Li , Tianfan Xue , Jinwei Gu

Diffusion models have emerged as powerful generative tools, rivaling GANs in sample quality and mirroring the likelihood scores of autoregressive models. A subset of these models, exemplified by DDIMs, exhibit an inherent asymmetry: they…

Computer Vision and Pattern Recognition · Computer Science 2024-01-24 Yixuan Wang , Shuangyin Li

Denoising diffusion models have emerged as the go-to generative framework for solving inverse problems in imaging. A critical concern regarding these models is their performance on out-of-distribution tasks, which remains an under-explored…

Computer Vision and Pattern Recognition · Computer Science 2025-01-29 Riccardo Barbano , Alexander Denker , Hyungjin Chung , Tae Hoon Roh , Simon Arridge , Peter Maass , Bangti Jin , Jong Chul Ye

Text-to-image generation models have achieved remarkable capabilities in synthesizing images, but often struggle to provide fine-grained control over the output. Existing guidance approaches, such as segmentation maps and depth maps,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Sangmin Jung , Utkarsh Nath , Yezhou Yang , Giulia Pedrielli , Joydeep Biswas , Amy Zhang , Hassan Ghasemzadeh , Pavan Turaga

Robust invisible watermarks are widely used to support copyright protection, content provenance, and accountability by embedding hidden signals designed to survive common post-processing operations. However, diffusion-based image editing…

Image and Video Processing · Electrical Eng. & Systems 2026-03-16 Qian Qi , Jiangyun Tang , Jim Lee , Emily Davis , Finn Carter

Recent advances in Artificial Intelligence Generated Content (AIGC) have garnered significant interest, accompanied by an increasing need to transmit and compress the vast number of AI-generated images (AIGIs). However, there is a…

Image and Video Processing · Electrical Eng. & Systems 2024-12-18 Ruijie Chen , Qi Mao , Zhengxue Cheng

Data security is of the utmost concern of a communication system. Since the early days, many developments have been made to improve the performance of the system. PSNR of the received signal, secure transmission channel, quality of encoding…

Cryptography and Security · Computer Science 2021-10-27 Venkatesh Subramaniyan , Vignesh Sivakumar , A. K. Vagheesan , S. Sakthivelan , K. J. Jegadish Kumar , K. K. Nagarajan

With the popularity of the large language models (LLMs), text steganography has achieved remarkable performance. However, existing methods still have some issues: (1) For the white-box paradigm, this steganography behavior is prone to…

Cryptography and Security · Computer Science 2026-04-23 Jianxin Gao , Ruohan Lei , Wanli Peng

Image Steganography is a growing research area of information security where secret information is embedded in innocent-looking public communication. This paper proposes a novel crystographic technique for grayscale images in spatial…

Multimedia · Computer Science 2016-01-08 Khan Muhammad , Jamil Ahmad , Haleem Farman , Zahoor Jan

Traditional image steganography modifies the content of the image more or less, it is hard to resist the detection of image steganalysis tools. To address this problem, a novel method named generative coverless information hiding method…

Cryptography and Security · Computer Science 2017-12-20 Ming-ming Liu , Min-qing Zhang , Jia Liu , Ying-nan Zhang , Yan Ke