Towards a Telltale Watermarking Technique for Tamper-Proofing Deepa Kundur and Dimitrios Hatzinakos Proc. In this paper we present a novel fragile watermarking approach for the tamper-proofing of multimedia signals. Our design embeds a fragile watermark in the discrete wavelet domain of the signal by quantizing the corresponding coefficients.
Tamper detection is possible in localized spatial and frequency regions of the given signal.
Unlike previously proposed techniques, the novel approach provides information on how the signal is modified. Analysis and simulation results demonstrate the potential of the method.