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).
Relation:
Journal of Electronic Science and Technology, V.11 N.1 : 20-26.
