Technology of digital video watermarking in electric power system
Li Li · Relay · 2007
According to the imperative problems in the field of electric power information security, it is a breakthrough to bring the digital watermark technology to electric power system. In this paper, an algorithm based on 3DWT is proposed and performed on the transmission of the electricity price. After chaotic scrambling, the electricity information turns to binary data and the video segmentation is adopted to divide the carrier into different shot frames. Then, the watermark information is added adaptively to the 3D wavelet coefficients of the video shot, and watermark embedding is finished. Applying the technology of video watermark, electricity price as a secret could transmit safely. It can not be filched by illegality. The experiment results show that this method is quite safe and robust.