Yao Wan^1,2, Lingzhi Liao^1,2,*, Zhili Zhou³, Hengfu Yang⁴, Fei Peng³, Zhilin Huo⁵

Journal of New Media, Vol.5, No.1, pp. 45-53, 2023, DOI:10.32604/jnm.2023.039962

Abstract Secret image sharing (SIS) is a significant research topic of image information hiding, which divides the image into multiple shares and distributes them to multiple parties for management and preservation. In order to reconstruct the original image, a subset with predetermined number of shares is needed. And just because it is not necessary to use all of the shares to make a reconstruction, SIS creates a high which breaks the limitations of traditional image protection methods, but at the same time, it causes a reduce of safety. Recently, new technologies, such as deep learning and blockchain, have been applied… More >

S. Lakshmi Narayanan^*

Computer Systems Science and Engineering, Vol.43, No.3, pp. 931-946, 2022, DOI:10.32604/csse.2022.022459

Abstract The main aim of this work is to improve the security of data hiding for secret image sharing. The privacy and security of digital information have become a primary concern nowadays due to the enormous usage of digital technology. The security and the privacy of users’ images are ensured through reversible data hiding techniques. The efficiency of the existing data hiding techniques did not provide optimum performance with multiple end nodes. These issues are solved by using Separable Data Hiding and Adaptive Particle Swarm Optimization (SDHAPSO) algorithm to attain optimal performance. Image encryption, data embedding, data extraction/image recovery are the… More >

Pranati Rakshit¹, Sreeparna Ganguly¹, Souvik Pal², Ayman A. Aly³, Dac-Nhuong Le^4,5,*

CMC-Computers, Materials & Continua, Vol.67, No.1, pp. 1207-1224, 2021, DOI:10.32604/cmc.2021.014293

Abstract With the increasing need of sensitive or secret data transmission through public network, security demands using cryptography and steganography are becoming a thirsty research area of last few years. These two techniques can be merged and provide better security which is nowadays extremely required. The proposed system provides a novel method of information security using the techniques of audio steganography combined with visual cryptography. In this system, we take a secret image and divide it into several subparts to make more than one incomprehensible sub-images using the method of visual cryptography. Each of the sub-images is then hidden within individual… More >

N. RajeshKumar¹, D. Yuvaraj², G. Manikandan^{3, *}, R. BalaKrishnan¹, B. Karthikeyan³, D. Narasimhan¹, N. R. Raajan⁴

CMC-Computers, Materials & Continua, Vol.65, No.2, pp. 1283-1301, 2020, DOI:10.32604/cmc.2020.011226

Abstract Visual cryptographic scheme is specially designed for secret image sharing in the form of shadow images. The basic idea of visual cryptography is to construct two or more secret shares from the original image in the form of chaotic image. In this paper, a novel secret image communication scheme based on visual cryptography and Tetrolet tiling patterns is proposed. The proposed image communication scheme will break the secret image into more shadow images based on the Tetrolet tiling patterns. The secret image is divided into 4×4 blocks of tetrominoes and employs the concept of visual cryptography to hide the secret… More >