关键词: 视频水印, 峰度, 离散余弦变换, 透明, 健壮, 盲检测

Abstract: This paper proposes a new algorithm of video watermarking based on kurtosis and DCT.Kurtosis is an eigenvalue of normal distribution of the image.Choose the video frames with small kurtosis，brightness space into blocks before the discrete cosine transform，embedded the middle frequency coefficients into watermarking.The result demonstrates that the algorithm is robust and transparent to lossy compression against common signal processing manipulations and attacks，such as noise，cut and conversion etc.

Key words: video watermarking, kurtosis, Discrete Cosine Transform（DCT）, transparent, robustness, blind-detection