Technical Program

Paper Detail

Paper:IMDSP-P6.5
Session:Watermarking I
Time:Wednesday, May 19, 13:00 - 15:00
Presentation: Poster
Topic: Image and Multidimensional Signal Processing: Image and Video Authentication and Watermarking
Title: EFFICIENT INFORMED EMBEDDING OF MULTI-BIT WATERMARK
Authors: Joceli Mayer; Federal University of Santa Catarina 
 Rafael Araujo Silva; Federal University of Santa Catarina 
Abstract: In this paper we present a practical blind detection system for multi-bit watermarking. Differently from [1], we propose a deterministic embedding scheme that does not depend on statistical assumptions about the original image. The proposed system can be considered an extension of [2] for multi-bit messages using code division multiplexing. By informed embedding, using the knowledge of the original image and the detection scheme, the proposed system assures total embedding efficiency. We analyze the impact of valumetric distortion sources on the ability to recover the watermark message and propose a simple parameter to control system robustness. Experimental results obtained for spatial domain watermarking illustrate the efficiency of the proposed system.
 
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