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In this paper, an effective method was introduced to steganography of text document in the host image. In the available steganography methods, the message has a random form. Therefore, the embedding capacity is generally low. In the…

Multimedia · Computer Science 2018-04-02 Seyyed Hossein Soleymani , Amir Hossein Taherinia

Image compression at extremely low bitrates (below 0.1 bits per pixel (bpp)) is a significant challenge due to substantial information loss. In this work, we propose a novel two-stage extreme image compression framework that exploits the…

Image and Video Processing · Electrical Eng. & Systems 2024-09-05 Zhiyuan Li , Yanhui Zhou , Hao Wei , Chenyang Ge , Jingwen Jiang

Modern face recognition systems utilize deep neural networks to extract salient features from a face. These features denote embeddings in latent space and are often stored as templates in a face recognition system. These embeddings are…

Cryptography and Security · Computer Science 2024-04-26 Bharat Yalavarthi , Arjun Ramesh Kaushik , Arun Ross , Vishnu Boddeti , Nalini Ratha

High-energy large-scale particle colliders generate data at extraordinary rates. Developing real-time high-throughput data compression algorithms to reduce data volume and meet the bandwidth requirement for storage has become increasingly…

A new grayscale-based block scrambling image encryption scheme is presented to enhance the security of Encryption-then-Compression (EtC) systems, which are used to securely transmit images through an untrusted channel provider. The proposed…

Cryptography and Security · Computer Science 2018-12-18 Warit Sirichotedumrong , Tatsuya Chuman , Hitoshi Kiya

Region of Interest (ROI)-based image compression has rapidly developed due to its ability to maintain high fidelity in important regions while reducing data redundancy. However, existing compression methods primarily apply masks to suppress…

Image and Video Processing · Electrical Eng. & Systems 2025-11-13 Kai Hu , Han Wang , Renhe Liu , Zhilin Li , Shenghui Song , Yu Liu

Relative entropy coding (REC) algorithms encode a random sample following a target distribution $Q$, using a coding distribution $P$ shared between the sender and receiver. Sadly, general REC algorithms suffer from prohibitive encoding…

Information Theory · Computer Science 2024-10-30 Jiajun He , Gergely Flamich , José Miguel Hernández-Lobato

The existing image embedding networks are basically vulnerable to malicious attacks such as JPEG compression and noise adding, not applicable for real-world copyright protection tasks. To solve this problem, we introduce a generative deep…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Qichao Ying , Hang Zhou , Xianhan Zeng , Haisheng Xu , Zhenxing Qian , Xinpeng Zhang

In this paper, a hybrid video compression framework is proposed that serves as a demonstrative showcase of deep learning-based approaches extending beyond the confines of traditional coding methodologies. The proposed hybrid framework is…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Yanchen Zhao , Wenxuan He , Chuanmin Jia , Qizhe Wang , Junru Li , Yue Li , Chaoyi Lin , Kai Zhang , Li Zhang , Siwei Ma

Predicate encryption is a new paradigm of public key encryption that enables searches on encrypted data. Using the predicate encryption, we can search keywords or attributes on encrypted data without decrypting the ciphertexts. In predicate…

Cryptography and Security · Computer Science 2017-02-27 Kwangsu Lee

Although deep learning based image compression methods have achieved promising progress these days, the performance of these methods still cannot match the latest compression standard Versatile Video Coding (VVC). Most of the recent…

Image and Video Processing · Electrical Eng. & Systems 2021-08-29 Yueqi Xie , Ka Leong Cheng , Qifeng Chen

For autoregressive (AR) modeling of high-resolution images, vector quantization (VQ) represents an image as a sequence of discrete codes. A short sequence length is important for an AR model to reduce its computational costs to consider…

Computer Vision and Pattern Recognition · Computer Science 2022-03-10 Doyup Lee , Chiheon Kim , Saehoon Kim , Minsu Cho , Wook-Shin Han

We consider the problem of lossy image compression with deep latent variable models. State-of-the-art methods build on hierarchical variational autoencoders (VAEs) and learn inference networks to predict a compressible latent representation…

Image and Video Processing · Electrical Eng. & Systems 2021-01-11 Yibo Yang , Robert Bamler , Stephan Mandt

Image steganography plays a vital role in securing secret data by embedding it in the cover images. Usually, these images are communicated in a compressed format. Existing techniques achieve this but have low embedding capacity. Enhancing…

Multimedia · Computer Science 2021-01-05 Rohit Agrawal , Kapil Ahuja

This paper addresses the problem of lossy image compression, a fundamental problem in image processing and information theory that is involved in many real-world applications. We start by reviewing the framework of variational autoencoders…

Image and Video Processing · Electrical Eng. & Systems 2023-12-06 Zhihao Duan , Ming Lu , Jack Ma , Yuning Huang , Zhan Ma , Fengqing Zhu

H.264/Advanced Video Coding (AVC) is one of the most commonly used video compression standard currently. In this paper, we propose a Reversible Data Hiding (RDH) method based on H.264/AVC videos. In the proposed method, the macroblocks with…

Multimedia · Computer Science 2019-04-30 Yi Chen , Hongxia Wang , Hanzhou Wu , Yong Liu

New algorithms for embedding graphs have reduced the asymptotic complexity of finding low-dimensional representations. One-Hot Graph Encoder Embedding (GEE) uses a single, linear pass over edges and produces an embedding that converges…

Distributed, Parallel, and Cluster Computing · Computer Science 2024-02-08 Ariel Lubonja , Cencheng Shen , Carey Priebe , Randal Burns

Image encryption is one of the most common and effective methods to secure digital images. Recently, Khalid M. Hosny presented an image encryption scheme based on 6D hyper chaotic mapping and Q-Fibonacci matrix, which, despite its…

Cryptography and Security · Computer Science 2023-12-27 Mohammad Gholamzadeh , Behrooz Khadem

Recent advancements in deep learning-based image compression are notable. However, prevalent schemes that employ a serial context-adaptive entropy model to enhance rate-distortion (R-D) performance are markedly slow. Furthermore, the…

Applications · Statistics 2024-03-25 Haisheng Fu , Feng Liang , Jie Liang , Zhenman Fang , Guohe Zhang , Jingning Han

Performance indicators characterizing modern steganographic techniques include capacity (i.e. the quantity of data that can be hidden in the cover medium), stego quality (i.e. artifacts visibility), security (i.e. undetectability), and…

Multimedia · Computer Science 2020-04-28 Alan Anwer Abdulla , Sabah A. Jassim , Harin Sellahewa