Distortion-Free Data Embedding Scheme for High Dynamic Range Images

摘要

Distortion-free data embedding is a technique which can assure that not only the secret data is correctly extracted but also the cover media is recovered without any distortion after secret data is extracted completely.Because of these advantages,this technique attracts the attention of many researchers.In this paper,a new distortion-free data embedding scheme for high dynamic range（HDR） images is proposed.By depending on Cartesian product,this scheme can obtain higher embedding capacity while maintaining the exactly identical cover image and stego image when using the tone mapping algorithms.In experimental results,the proposed scheme is superior to Yu et al.’s scheme in regard to the embedding rate?an average embedding rate of 0.1355 bpp compared with Yu et al.’s scheme（0.1270 bpp）.