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Application of Video Watermarking Using Subdivision Technique to Enhance Information Security

摘要


This paper proposes an innovative technique of watermark video security using Watermark Sub-Division method. The main objective of this paper is to demonstrate Video Watermark Subdivision Algorithm (VWSA) to secure watermarked secret information. In this algorithm watermarked secret data is subdivided into suitable parts and pixel value of every part is embedded with the same pixel value of a selected frame of video and locates the respective offsets as secret key. At the receiver end the same pixel values are correlated with the Red, Green, Blue (RGB) plane of frames and watermark secret data is recovered based on the amount of correlations achieved. We have applied various types of attacks on watermarked video during transmission and recovered both original video and watermarked secret data without any loss of information. The simulation results demonstrate that the security parameters are improved and the embedded watermark is robust and invisible. Peak Signal to Noise Ratio (PSNR) and Similarity Index (SI) measurable parameters are also calculated to test the quality and matching performance between the original water- mark and the extracted watermark to achieve imperceptibility.

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