A New Time-Frequency Based Fragile Watermarking Scheme for Image Authentication
نویسنده
چکیده
Absbrrcf-TIIe paper proposes a new fragile image watermarking scheme b a d on time-frequency analysis S p e d i d y , the watermark is ehps an arbitrary non-stationary signal with a particular signature in the time-frequency plane. The proposed technique retains a hi& quality watermarked image since only a few pixels of the original image are used in the watermarking process. Experimental resultr show that the proposed fragile watennarh is very sensitive to many attacks such as Maling, translation, rotation and compression, making it very effective in image authentication. Idex Tern Fragile Watermarking, Time-Frequency Analysis, Image Authentication
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