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A fragile watermarking scheme is proposed for authentication of images. We exploit singular values of singular value decomposition( SVD) of images to check the integrity of images. In order to make authentication data, the singular values are changed to the binary bits using modular arithmetic. The binary bits, authentication data, are inserted into the least significant bits(LSBs) of the original...
In this paper, we propose a novel DWT-based fragile watermarking scheme by exploiting the characteristics of the human visual system (HVS). Multi-resolution tamper detection and image fusion are applied to watermark detection and accurate tamper region location. To distinguish between incidental and malicious modifications, some effective rules are presented. Mathematical morphology operations are...
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