HDR Image Watermarking based on Bracketing Decomposition
IEEE International Conference on Digital Signal Processing (18th DSP 2013), page 1--6 - July 2013
Abstract
The present paper proposes a novel watermarking scheme specifically designed for high dynamic range (HDR) images. The employed embedding strategy is based on a decomposition of the original HDR representation into multiple low dynamic range (LDR) images by means of a bracketing process. After having inserted the selected watermark into each LDR component, the final output is generated by combining the available contributions into a single HDR object. By exploiting some of the well studied properties of digital watermarking for standard LDR images, our approach is able to generate a watermarked HDR image visually equivalent to the original one, while allowing to detect the embedded information in both the marked HDR image and in its LDR counterpart, obtained through tone-mapping operators or by extracting a specific luminance range of interest from it. Several results obtained from an extensive set of experimental tests are reported to testify the effectiveness of the proposed scheme.BibTex references
@InProceedings\{SMCB13, author = "Solachidis, Vassilios and Maiorana, Emanuele and Campisi, Patrizio and Banterle, Francesco", title = "HDR Image Watermarking based on Bracketing Decomposition", booktitle = "IEEE International Conference on Digital Signal Processing (18th DSP 2013)", pages = "1--6", month = "July", year = "2013", publisher = "IEEE", organization = "IEEE", keywords = "High dynamic range (HDR) imaging; tonemapping operators (TMOs); watermarking; data hiding.", url = "http://vcg-legacy.isti.cnr.it/Publications/2013/SMCB13" }