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相关论文: On the Security of Bitstream-level JPEG Encryption…

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Reversible data hiding in encrypted images (RDH-EI) has attracted increasing attention, since it can protect the privacy of original images while the embedded data can be exactly extracted. Recently, some RDH-EI schemes with multiple data…

密码学与安全 · 计算机科学 2021-06-29 Zhongyun Hua , Yanxiang Wang , Shuang Yi , Yicong Zhou , Xiaohua Jia

Deep learning-based watermarking has emerged as a promising solution for robust image authentication and protection. However, existing models are limited by low embedding capacity and vulnerability to bit-level errors, making them…

密码学与安全 · 计算机科学 2025-07-08 Hyunwook Choi , Sangyun Won , Daeyeon Hwang , Junhyeok Choi

We propose a robust and provably secure image steganography framework based on latent-space iterative optimization. Within this framework, the receiver treats the transmitted image as a fixed reference and iteratively refines a latent…

密码学与安全 · 计算机科学 2026-03-11 Yanan Li , Zixuan Wang , Qiyang Xiao , Yanzhen Ren

LSB steganography is a one of the most widely used methods for implementing covert data channels in image file exchanges [1][2]. The low computational complexity and implementation simplicity of the algorithm are significant factors for its…

多媒体 · 计算机科学 2016-06-09 James Collins , Sos Agaian

Steganography is an information hiding technique in which secret data are secured by covering them into a computer carrier file without damaging the file or changing its size. The difference between steganography and cryptography is that…

密码学与安全 · 计算机科学 2012-12-27 Youssef Bassil

State-of-the-art text-to-image models generate photorealistic images at an unprecedented speed. This work focuses on models that operate in a bitwise autoregressive manner over a discrete set of tokens that is practically infinite in size.…

计算机视觉与模式识别 · 计算机科学 2025-12-04 Louis Kerner , Michel Meintz , Bihe Zhao , Franziska Boenisch , Adam Dziedzic

This article presents an encryption scheme based on the small Ree groups. We propose utilizing the small Ree group structure to enhance the overall security parameters of the encryption scheme. By extending the logarithmic signature to…

密码学与安全 · 计算机科学 2025-04-16 Gennady Khalimov , Yevgen Kotukh

We consider the problem of joint source-channel coding for semantic communication from a rateless perspective, the purpose of which is to settle the balance between reliability (distortion/perception) and effectiveness (rate) of…

信息检索 · 计算机科学 2025-01-23 Cheng Peng , Rulong Wang , Yong Xiao

Generative models have enabled easy creation and generation of images of all kinds given a single prompt. However, this has also raised ethical concerns about what is an actual piece of content created by humans or cameras compared to…

密码学与安全 · 计算机科学 2024-12-31 Aryaman Shaan , Garvit Banga , Raghav Mantri

Although variable-rate compressed image formats such as JPEG are widely used to efficiently encode images, they have not found their way into real-time rendering due to special requirements such as random access to individual texels. In…

图形学 · 计算机科学 2025-10-13 Elias Kristmann , Markus Schütz , Michael Wimmer

The main theme of this application is to provide an algorithm color image watermark to manage the attacks such as rotation, scaling and translation. In the existing watermarking algorithms, those exploited robust features are more or less…

密码学与安全 · 计算机科学 2012-10-23 J. Veerappan , G. Pitchammal

Robust reversible watermarking in encrypted images (RRWEI) faces an inherent challenge in simultaneously achieving robustness, reversibility, and content privacy under severely constrained embedding capacity. Existing RRWEI schemes often…

密码学与安全 · 计算机科学 2026-01-21 Haoyu Shen , Wen Yin , Zhaoxia Yin , Wan-Li Lyu , Xinpeng Zhang

Fountain codes like LT or Raptor codes, also known as rateless erasure codes, allow to encode a message as some number of packets, such that any large enough subset of these packets is sufficient to fully reconstruct the message. It…

信息论 · 计算机科学 2015-08-19 Jarek Duda

With the emergence of social networks and improvements in computational photography, billions of JPEG images are shared and viewed on a daily basis. Desktops, tablets and smartphones constitute the vast majority of hardware platforms used…

分布式、并行与集群计算 · 计算机科学 2014-05-13 Wasuwee Sodsong , Jingun Hong , Seongwook Chung , Yeongkyu Lim , Shin-Dug Kim , Bernd Burgstaller

RGB-based semantic segmentation has become a mainstream approach for visual perception and is widely applied in a variety of downstream tasks. However, existing methods typically rely on high-resolution RGB inputs, which may expose…

机器人学 · 计算机科学 2026-04-07 Xuying Huang , Sicong Pan , Olga Zatsarynna , Juergen Gall , Maren Bennewitz

This paper introduces RoSeMary, the first-of-its-kind ML/Crypto codesign watermarking framework that regulates LLM-generated code to avoid intellectual property rights violations and inappropriate misuse in software development.…

密码学与安全 · 计算机科学 2025-02-11 Ruisi Zhang , Neusha Javidnia , Nojan Sheybani , Farinaz Koushanfar

A new technique for data hiding in digital image is proposed in this paper. Steganography is a well known technique for hiding data in an image, but generally the format of image plays a pivotal role in it, and the scheme is format…

多媒体 · 计算机科学 2013-08-01 Adity Sharma , Anoo Agarwal , Vinay Kumar

This paper investigates a fundamental yet underexplored question: can watermarked images remain editable without compromising watermark integrity? We propose SafeMark, a framework for watermark-preserving text-guided image manipulation that…

计算机视觉与模式识别 · 计算机科学 2026-05-20 Xiaodong Wu , Qi Li , Xiangman Li , Zelin Zhang , Lingshuang Liu , Jianbing Ni

In JPEG (DCT based) compresses image data by representing the original image with a small number of transform coefficients. It exploits the fact that for typical images a large amount of signal energy is concentrated in a small number of…

图形学 · 计算机科学 2014-02-13 Sukhpal Singh

A position-multiplexing based cryptosystem is proposed to enhance the information security with an ultra-broadband illumination. The simplified optical encryption system only contains one diffuser acting as the random phase mask (RPM).…

光学 · 物理学 2021-09-17 Dongliang Tang , Sujit Kumar Sahoo , Cuong Dang