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Visual Secret Sharing Based Digital Image Watermarking

Keywords: Copyright Protection , Digital Watermarking , Secret Sharing , Visual Cryptography , IJCSI

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In this paper, a spatial domain image watermarking technique based on Visual Secret Sharing (VSS) and unique statistical properties is proposed. A random looking image is generated during watermark hiding process and is secretly registered with an arbitrator for verification during conflicts. Another random looking image is generated during watermark revelation stage and is combined with the existing one, to recover the watermark. This whole process is done without altering the image to be protected and hence the quality of the cover image is high. When compared with similar existing techniques, the proposed technique has three main advantages: Provides greater convenience in carrying and storing the intermediate images called shares; Provides high security; Reduce tradeoff between spatial and frequency domain techniques in terms of robustness


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