Hongxin Xu

Secret-Stego Dissimilarity as a Design Axis: Invertible Coverless Image Steganography with Diffusion Models

InvCISD, an invertible diffusion framework that couples the latent representations of the secret and an irrelevant reference image with an invertible network called LIMNet, is proposed, which substantially reduces secret-stego visual similarity, improves stego quality, and retains satisfactory secret reconstruction qua...