Contributo in atti di convegno, 2013, ENG, 10.1109/ICDSP.2013.6622687

HDR image watermarking based on bracketing decomposition

Solachidis V.; Maiorana E.; Campisi P.; Banterle F.

University of Roma 3, Italy; University of Roma 3, Italy; University of Roma 3, Italy; CNR-ISTI, Pisa, Italy

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.

DSP 2013 - 18th International Conference on Digital Signal Processing, pp. 1–6, Santorini, Greece, 1-3 July 2013

Keywords

HDR Watermarking, High Dynamic Range Imaging, Exposure Stack, Watermarking, Tone Mapping operators, Data hiding, H.5.1 Multimedia Information Systems. Watermarking

CNR authors

Banterle Francesco

CNR institutes

ISTI – Istituto di scienza e tecnologie dell'informazione "Alessandro Faedo"

ID: 277795

Year: 2013

Type: Contributo in atti di convegno

Creation: 2014-02-12 09:54:37.000

Last update: 2018-10-18 16:01:20.000

External IDs

CNR OAI-PMH: oai:it.cnr:prodotti:277795

DOI: 10.1109/ICDSP.2013.6622687

Scopus: 2-s2.0-84888872633

ISI Web of Science (WOS): 000343676800020