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This paper presents a robust video watermarking scheme in Discrete FourierTransform (DFT) and Sequencyordered Complex Hadamard Transform (SCHT). The DFTand SCHT coefficients are complex and consist of both magnitude and phase andare well suited to adopt phase shift keying techniques to embed the watermark.In the proposed schemes, the phases of DFT and SCHT coefficients are modifiedto convey watermark information using binary phase shift keying in cover video.Low amplitude block selection (LABS) is used to improve transparency, amplitudeboost to improve the resistance of watermark from signal processing andcompression attacks and spread spectrum technique is used for encryptingwatermark in order to protect it from third party. It is observed that bothalgorithms showing more or less same robustness but SCHT offers hightransparency, simple implementation and less computational cost than DFT.

Robust Video Watermarking Schemes in Phase domain Using Binary Phase Shift Keying