A Digital Watermarking Algorithm for Video Authentication in H.264

A visible watermark is a secondary translucent image overlaid into the primary image and appears visible to a viewer on a careful inspection. The invisible watermark is embedded in such a way that the modification made to the pixel value is perceptually not noticed, and it can be recovered only with an appropriate decoding mechanism. In this brief, we present a new VLSI architecture that can insert invisible or visible watermarks in images in the discrete cosine transform domain. The proposed watermarking system features low power consumption, low cost implementation, high processing speed and reliability.