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In today's world the art of sending & displaying the hidden information especially in public places, has received more attention and faced many challenges. Therefore, different methods have been proposed so far for hiding information in…

Cryptography and Security · Computer Science 2009-12-14 Shashikala Channalli , Ajay Jadhav

Establishing hidden communication is an important subject of discussion that has gained increasing importance nowadays with the development of the internet. One of the key methods for establishing hidden communication is steganography.…

Multimedia · Computer Science 2011-03-07 G. Sahoo , Rajesh Kumar Tiwari

Multi-image hiding, which embeds multiple secret images into a cover image and is able to recover these images with high quality, has gradually become a research hotspot in the field of image steganography. However, due to the need to embed…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Weina Dong , Jia Liu , Lifeng Chen , Wenquan Sun , Xiaozhong Pan , Yan Ke

Deep image steganography is a data hiding technology that conceal data in digital images via deep neural networks. However, existing deep image steganography methods only consider the visual similarity of container images to host images,…

Cryptography and Security · Computer Science 2022-01-20 Yanzhen Ren , Ting Liu , Liming Zhai , Lina Wang

We propose a privacy-preserving machine learning scheme with encryption-then-compression (EtC) images, where EtC images are images encrypted by using a block-based encryption method proposed for EtC systems with JPEG compression. In this…

Cryptography and Security · Computer Science 2020-12-30 Ayana Kawamura , Yuma Kinoshita , Takayuki Nakachi , Sayaka Shiota , Hitoshi Kiya

This paper proposes a ($k,n$)-threshold secret image sharing scheme that offers flexibility in terms of meeting contrasting demands such as information security and storage efficiency with the help of a randomized kernel (binary matrix)…

Cryptography and Security · Computer Science 2019-02-26 Ravi Tej Akella , Raviteja Rekula , Vinod Pankajakshan

Steganography is the science of hiding a secret message within an ordinary public message, which is referred to as Carrier. Traditionally, digital signal processing techniques, such as least significant bit encoding, were used for hiding…

Sound · Computer Science 2020-07-28 Felix Kreuk , Yossi Adi , Bhiksha Raj , Rita Singh , Joseph Keshet

Authentication mechanisms are at the forefront of defending the world from various types of cybercrime. Steganography can serve as an authentication solution through the use of a digital signature embedded in a carrier object to ensure the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Ching-Chun Chang

Steganalysis is a collection of techniques used to detect whether secret information is embedded in a carrier using steganography. Most of the existing steganalytic methods are based on machine learning, which typically requires training a…

Cryptography and Security · Computer Science 2022-03-16 David Megías , Daniel Lerch-Hostalot

This paper is to create a practical steganographic implementation for 4-bit images.The proposed technique converts 4 bit image into 4 shaded Gray Scale image. This image will be act as reference image to hide the text. Using this grey scale…

Multimedia · Computer Science 2014-08-17 Samir Kumar Bandyopadhyay , Indra Kanta Maitra

We develop a new scattering-based framework for the holographic encryption of analog and digital signals. The proposed methodology, termed "differential sensing", involves encryption of a wavefield image by means of two hard-to-guess,…

Optics · Physics 2024-09-10 Mohammadrasoul Taghavi , Edwin A. Marengo

Data privacy and data security are always on highest priority in the world. We need a reliable method to encrypt the data so that it reaches the destination safely. Encryption is a simple yet effective way to protect our data while…

Multimedia · Computer Science 2020-02-07 Hanisha Chowdary N , Karan K , Bharath K P , Rajesh Kumar M

The current digital era, driven by growing threats to data security, requires a robust image encryption technique. Classical encryption algorithms suffer from a trade-off among security, image fidelity, and computational efficiency. This…

In this paper, an algorithm is aimed to make a cryptosystem for gray level images based on voice features, secret sharing scheme and electromagnetic rotor machine. Here, Shamir secret sharing (k n) threshold scheme is used to secure a key…

Cryptography and Security · Computer Science 2020-11-04 Ashish Kumar , N S Raghava

Steganography involves hiding a secret message or image inside another cover image. Changes are made in the cover image without affecting visual quality of the image. In contrast to cryptography, Steganography provides complete secrecy of…

Multimedia · Computer Science 2017-04-11 G. Umamaheswari , Dr. C. P. Sumathi

In this paper we propose a new data hiding technique. The new technique uses steganography and cryptography on images with a size of 256x256 pixels and an 8-bit grayscale format. There are design restrictions such as a fixed-size cover…

Cryptography and Security · Computer Science 2012-12-13 Francisco Rubén Castillo Soria , Gustavo Fernández Torres , Ignacio Algredo-Badillo

In this letter, we explored generative image steganography based on autoregressive models. We proposed Pixel-Stega, which implements pixel-level information hiding with autoregressive models and arithmetic coding algorithm. Firstly, one of…

Computer Vision and Pattern Recognition · Computer Science 2021-12-22 Siyu Zhang , Zhongliang Yang , Haoqin Tu , Jinshuai Yang , Yongfeng Huang

The aim of steganographic algorithms is to identify the appropriate pixel positions in the host or cover image, where bits of sensitive information can be concealed for data encryption. Work is being done to improve the capacity to…

Cryptography and Security · Computer Science 2023-12-15 Sahil Nokhwal , Saurabh Pahune , Ankit Chaudhary

The art of information hiding has been around nearly as long as the need for covert communication. Steganography, the concealing of information, arose early on as an extremely useful method for covert information transmission. Steganography…

Multimedia · Computer Science 2012-05-10 Bhavana S. , K. L. Sudha

Image registration is a key task in medical imaging applications, allowing to represent medical images in a common spatial reference frame. Current approaches to image registration are generally based on the assumption that the content of…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Riccardo Taiello , Melek Önen , Francesco Capano , Olivier Humbert , Marco Lorenzi