Robust Block Selection for Watermarking Video Streams
Tamás Polyák, Gábor Fehér · 2008
Abstract — In this paper a robust video watermarking method is presented, which embeds data in the wavelet domain using edge detection. The algorithm uses the luminance values around the edges where changes are less noticeable for the human visual system. Watermark is embedded in an additive way using spread spectrum noise. The complexity of the method is low. The algorithms used for wavelet transformation and edge detection are fast and simple. Results show that the watermark signal is imperceptible, and the method is robust against low bitrate lossy compressions, like H.264 and XviD. Index Terms—Edge detection, spread spectrum, video stream, wavelet transform, watermarking I.