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In steganography, we always hope to maximize the embedding payload subject to an upper-bounded distortion. We need suitable distortion measurement to evaluate the embedding impact. However, different distortion functions exposes different…

Information Theory · Computer Science 2016-04-13 Han-Zhou Wu

Steganalysis means analysis of stego images. Like cryptanalysis, steganalysis is used to detect messages often encrypted using secret key from stego images produced by steganography techniques. Recently lots of new and improved…

Multimedia · Computer Science 2014-05-21 Tanmoy Sarkar , Sugata Sanyal

A code completion system suggests future code elements to developers given a partially-complete code snippet. Code completion is one of the most useful features in Integrated Development Environments (IDEs). Currently, most code completion…

Software Engineering · Computer Science 2020-09-21 Wenhan Wang , Sijie Shen , Ge Li , Zhi Jin

Steganography is a technique to hide the presence of secret communication. When one of the communication elements is under the influence of the enemy, it can be used. The main measure to evaluate steganography methods in a certain capacity…

Cryptography and Security · Computer Science 2023-08-17 Hanieh Rafiee , Mojtaba Mahdavi , AhmadReza NaghshNilchi

Z-complementary code set (ZCCS), an extension of perfect complementary codes (CCs), refers to a set of two-dimensional matrices having zero correlation zone properties. ZCCS can be used in various multi-channel systems to support, for…

Information Theory · Computer Science 2019-11-11 Palash Sarkar , Sudhan Majhi , Zilong Liu

We prove that the class of $\Z_2\Z_2[u]$-linear codes is exactly the class of $\Z_2$-linear codes with automorphism group of even order. Using this characterization, we give examples of known codes, e.g. perfect codes, which has a…

Combinatorics · Mathematics 2016-11-18 Joaquim Borges

Image steganography is the art of hiding secret message in grayscale or color images. Easy detection of secret message for any state-of-art image steganography can break the stego system. To prevent the breakdown of the stego system data is…

Multimedia · Computer Science 2022-01-05 Soumendu Chakraborty , Anand Singh Jalal , Charul Bhatnagar

This paper studies the problem of StyleGAN inversion, which plays an essential role in enabling the pretrained StyleGAN to be used for real image editing tasks. The goal of StyleGAN inversion is to find the exact latent code of the given…

Computer Vision and Pattern Recognition · Computer Science 2022-05-11 Tianyi Wei , Dongdong Chen , Wenbo Zhou , Jing Liao , Weiming Zhang , Lu Yuan , Gang Hua , Nenghai Yu

In the ever-expanding digital landscape, safeguarding sensitive information remains paramount. This paper delves deep into digital protection, specifically focusing on steganography. While prior research predominantly fixated on individual…

Computer Vision and Pattern Recognition · Computer Science 2024-08-13 Quang Nguyen , Truong Vu , Cuong Pham , Anh Tran , Khoi Nguyen

With the current development of multiprocessor systems, strive for computing data on such processor have also increased exponentially. If the multi core processors are not fully utilized, then even though we have the computing power the…

Cryptography and Security · Computer Science 2009-12-08 Samir B. Patel , Shrikant N. Pradhan , Saumitra U. Ambegaokar

We introduce a novel class of finite difference approximations, termed zigzag schemes, that employ a hybrid stencil that is neither symmetrical, nor fully one-sided. These zigzag schemes often enjoy more permissive stability constraints and…

Numerical Analysis · Mathematics 2025-05-26 Lorenzo Poggioni , Didier Clamond , Yves D'Angelo

Modern classification problems frequently present mild to severe label imbalance as well as specific requirements on classification characteristics, and require optimizing performance measures that are non-decomposable over the dataset,…

Machine Learning · Statistics 2015-05-27 Harikrishna Narasimhan , Purushottam Kar , Prateek Jain

We propose steganographic systems for the case when covertexts (containers) are generated by a finite-memory source with possibly unknown statistics. The probability distributions of covertexts with and without hidden information are the…

Cryptography and Security · Computer Science 2012-02-28 Boris Ryabko , Daniil Ryabko

Image forensics have attracted wide attention during the past decade. Though many forensic methods have been proposed to identify image forgeries, most of them are targeted ones, since their proposed features are highly dependent on the…

Multimedia · Computer Science 2015-03-18 Haodong Li , Weiqi Luo , Xiaoqing Qiu , Jiwu Huang

This paper investigates the detectability of popular imagein-image steganography schemes [1, 2, 3, 4, 5]. In this paradigm, the payload is usually an image of the same size as the Cover image, leading to very high embedding rates. We first…

Cryptography and Security · Computer Science 2026-03-13 Antoine Mallet , Patrick Bas

Image steganography is the process of concealing secret information in images through imperceptible changes. Recent work has formulated this task as a classic constrained optimization problem. In this paper, we argue that image…

Image and Video Processing · Electrical Eng. & Systems 2023-03-30 Xiangyu Chen , Varsha Kishore , Kilian Q Weinberger

Still and multi-media images are subject to transformations for compression, steganographic embedding and digital watermarking. In a major program of activities we are engaged in the modeling, design and analysis of digital content.…

Other Computer Science · Computer Science 2009-01-06 Sujit Gujar , C E Veni Madhavan

Mask-based lensless cameras can be flat, thin, and light-weight, which makes them suitable for novel designs of computational imaging systems with large surface areas and arbitrary shapes. Despite recent progress in lensless cameras, the…

Image and Video Processing · Electrical Eng. & Systems 2023-01-11 Yucheng Zheng , M. Salman Asif

In recent years, the security related to data over the internet has become a major issue. Different techniques are used to secure the information, one such technique is steganography. In steganography, one can have a cover media as an…

Cryptography and Security · Computer Science 2022-02-02 P N Priya , R Ranjitha , Yashaswini Naik , Shrilekha , Rama Moorthy H

Zero-Shot Learning (ZSL) is achieved via aligning the semantic relationships between the global image feature vector and the corresponding class semantic descriptions. However, using the global features to represent fine-grained images may…

Computer Vision and Pattern Recognition · Computer Science 2018-05-22 Yunlong Yu , Zhong Ji , Yanwei Fu , Jichang Guo , Yanwei Pang , Zhongfei Zhang