Fragile watermarking using subband coding
[ 1 ] Instytut Elektrotechniki i Telekomunikacji (IEt), Wydział Elektryczny, Politechnika Poznańska | [ P ] employee
2002
paper
english
- fragile watermarking
- subband coding
- tamper proofing
EN The paper deals with a new technique of fragile image watermarking. Proposed technique exploits inter-subband dependencies in order to minimize the influence of inserted watermark on the host image quality. Using the unique watermark based on the low-frequency subband, proposed scheme is resistant against attacks based on series of images analysis. Tampering detection ability of the proposed technique has been examined for a several types of image manipulation.
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