Dual Domain Watermarking for Authentication and Compression of Cultural Heritage Images

Y. Zhao, P. Campisi, D. Kundur
2004 IEEE Transactions on Image Processing  
This paper proposes an approach for the combined image authentication and compression of color images by making use of a digital watermarking and data hiding framework. The digital watermark is comprised of two components: a soft-authenticator watermark for authentication and tamper assessment of the given image, and a chrominance watermark employed to improve the efficiency of compression. The multipurpose watermark is designed by exploiting the orthogonality of various domains used for
more » ... ication, color decomposition and watermark insertion. The approach is implemented as a DCT-DWT dual domain algorithm and is applied for the protection and compression of cultural heritage imagery. Analysis is provided to characterize the behavior of the scheme under ideal conditions. Simulations and comparisons of the proposed approach with state-of-the-art existing work demonstrate the potential of the overall scheme. I. IMAGE PROCESSING FOR CULTURAL HERITAGE DOCUMENTS O VER the last few years, there has been a preponderance of activity in the area of digitization and processing of cultural heritage (CH) documents. Strong motivations in favor of digitization include increased preservation of the original cultural artefacts while permitting user interactivity through advanced multimedia presentation and wider distribution channels for greater educational accessibility. Digital still images of CH can undergo standard image processing functions such as image analysis, enhancement, restoration, recognition, representation, compression and image security [1], [2] . Effective application of these functions must take into account several often distinguishing features of CH images: (1) the high resolution and volume of each frame, (2) the significance of content in both the macroscopic and microscopic details of the data, and (3) the diverse distribution chains through which the image information may be traveling. Given the growing dependence of a broad spectrum of academic applications on digital high volume CH data, we focus in this paper on image processing for the compression and the preservation of integrity of CH imagery. Specifically, we propose a framework and algorithm to combine both processes that uses digital watermarking technology. Manuscript received February 17, 2003; revised October 20, 2003. The associate editor coordinating the review of this manuscript and approving it for publication was Prof. Ioannis Pitas.
doi:10.1109/tip.2003.821552 pmid:15376933 fatcat:hywpl3o72nhtblong43yqjlu24