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The major threat in cyber crime for digital forensic examiner is to identify, analyze and interpret the concealed information inside digital medium such as image, audio and video. There are strong indications that hiding information inside…

密码学与安全 · 计算机科学 2012-06-14 P. Thiyagarajan , G. Aghila , V. Prasanna Venkatesan

Recently, with the introduction of JPEG phase-aware steganalysis features, e.g., GFR, the design of JPEG steganographic distortion cost function turns to maintain not only the statistical undetectability in DCT domain but also in spatial…

多媒体 · 计算机科学 2021-06-11 Wenkang Su , Jiangqun Ni , Xianglei Hu , Jiwu Huang

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

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…

多媒体 · 计算机科学 2014-05-21 Tanmoy Sarkar , Sugata Sanyal

CNN-based steganalysis has recently achieved very good performance in detecting content-adaptive steganography. At the same time, recent works have shown that, by adopting an approach similar to that used to build adversarial examples, a…

多媒体 · 计算机科学 2019-06-04 Xiaoyu Shi , Benedetta Tondi , Bin Li , Mauro Barni

Image steganography is the art of hiding information into a cover image. This paper presents a novel technique for Image steganography based on Block-DCT, where DCT is used to transform original image (cover image) blocks from spatial…

多媒体 · 计算机科学 2010-07-15 A. Nag , S. Biswas , D. Sarkar , P. P. Sarkar

Historically, steganographic schemes were designed in a way to preserve image statistics or steganalytic features. Since most of the state-of-the-art steganalytic methods employ a machine learning (ML) based classifier, it is reasonable to…

多媒体 · 计算机科学 2019-06-04 Weixuan Tang , Bin Li , Shunquan Tan , Mauro Barni , Jiwu Huang

This article presents the method of steganography detection, which is formed by replacing the least significant bit (LSB). Detection is performed by dividing the image into layers and making an analysis of zero-layer of adjacent bits for…

多媒体 · 计算机科学 2019-03-01 S. V. Belim , D. E. Vilkhovskiy

This paper presents a novel method for detection of LSB matching steganogra- phy in grayscale images. This method is based on the analysis of the differences between neighboring pixels before and after random data embedding. In natu- ral…

多媒体 · 计算机科学 2017-03-03 Daniel Lerch-Hostalot , David Megías

A steganographic method based on the chaotic fractional map and in the DCT domain is proposed. This method embeds a secret message in some high frequency coefficients of the image using a 128-bit private key and a chaotic fractional map…

多媒体 · 计算机科学 2019-08-30 A. Soria-Lorente , E. Pérez-Michel , E. Avila-Domenech

Image steganography is a procedure for hiding messages inside pictures. While other techniques such as cryptography aim to prevent adversaries from reading the secret message, steganography aims to hide the presence of the message itself.…

计算机视觉与模式识别 · 计算机科学 2019-01-31 Kevin Alex Zhang , Alfredo Cuesta-Infante , Lei Xu , Kalyan Veeramachaneni

The field of steganography has long been focused on developing methods to securely embed information within various digital media while ensuring imperceptibility and robustness. However, the growing sophistication of detection tools and the…

密码学与安全 · 计算机科学 2024-12-03 Waheed Rehman

Steganography is the science of unnoticeably concealing a secret message within a certain image, called a cover image. The cover image with the secret message is called a stego image. Steganography is commonly used for illegal purposes such…

多媒体 · 计算机科学 2019-03-05 Dahuin Jung , Ho Bae , Hyun-Soo Choi , Sungroh Yoon

Image steganography is the technique of embedding secret information within images. The development of deep learning has led to significant advances in this field. However, existing methods often struggle to balance image quality, embedding…

计算机视觉与模式识别 · 计算机科学 2024-11-12 Abhinav Kumar , Pratham Singla , Aayan Yadav

Recent study has found out that after multiple times of recompression, the DCT coefficients of JPEG image can form an embedding domain that is robust to recompression, which is called transport channel matching (TCM) method. Because the…

密码学与安全 · 计算机科学 2023-06-28 Jimin Zhang , Xianfeng Zhao , Xiaolei He

Image hiding fully explores the hidden potential of deep learning-based models, aiming to conceal image-level messages within cover images and reveal them from stego images to achieve covert communication. Existing hiding schemes are easily…

计算机视觉与模式识别 · 计算机科学 2025-08-06 Junxue Yang , Xin Liao , Weixuan Tang , Jianhua Yang , Zheng Qin

By adding human-imperceptible perturbations to images, DNNs can be easily fooled. As one of the mainstream methods, feature space targeted attacks perturb images by modulating their intermediate feature maps, for the discrepancy between the…

计算机视觉与模式识别 · 计算机科学 2021-07-13 Lianli Gao , Yaya Cheng , Qilong Zhang , Xing Xu , Jingkuan Song

The Block Transform Coded, JPEG- a lossy image compression format has been used to keep storage and bandwidth requirements of digital image at practical levels. However, JPEG compression schemes may exhibit unwanted image artifacts to…

图形学 · 计算机科学 2012-08-10 Sukhpal Singh

Deep neural networks (DNNs) have achieved great success in solving a variety of machine learning (ML) problems, especially in the domain of image recognition. However, recent research showed that DNNs can be highly vulnerable to…

计算机视觉与模式识别 · 计算机科学 2017-05-09 Nilaksh Das , Madhuri Shanbhogue , Shang-Tse Chen , Fred Hohman , Li Chen , Michael E. Kounavis , Duen Horng Chau

Nowadays a steganography has to face challenges of both feature based staganalysis and convolutional neural network (CNN) based steganalysis. In this paper, we present a novel steganography scheme denoted as ITE-SYN (based on ITEratively…

计算机视觉与模式识别 · 计算机科学 2021-01-14 Xinghong Qin , Shunquan Tan , Bin Li , Weixuan Tang , Jiwu Huang