Fengyong Li

Feb 11, 2024 | mdpi.com | Jiang Yu |Fengyong Li

1. IntroductionBatch steganography is a technology to embed secret information into multiple cover media with slight modifications to avoid detection. Conversely, pooled steganalysis aims to disclose covert communication by monitoring and analyzing the digital media transmitted on public channel [1]. In general, batch steganography employs spatial images or JPEG images selected from a given image set or downloaded from the internet to achieve the delivering of secret data [2].

Apr 25, 2023 | mdpi.com | Jiang Yu |Xiaoyi Zhou |Cong Liu |Fengyong Li

Abstract:Recently, the style-based generative adversarial network StyleGAN2 yields state-of-art performance on unconditional high-quality image synthesis. However, from the perspective of steganography, the image security is not guaranteed during the image synthesis. Relying on the optimal properties of StyleGAN2, this paper proposes a noise-optimization stacked StyleGAN2 named NOStyle to generate the secure and high-quality cover (image used for data hiding).