An approach to embed image in video as watermark using a mobile device

Evolution in communication media and Internet technology has made information access easier and faster. At the same time there has been a major concern towards the security of various multimedia objects. Multimedia objects are files that contain images, video clips etc. These are the most popular shared objects over the internet through various transferrable devices. One of the way to secure the content is digital watermarking. Digital watermarking is the method to embed the secret data within text, image or video for ownership verification. In this work related to bitstream video watermarking technique, a study of spatial and temporal domain watermarking is carried out. An experiment is conducted to analyze the execution time of insertion and extraction process of bitstream watermarking on videos. Bit error count and power consumed by mobile device are computed for analysis of the bitstream video watermarking technique. As a proof of concept, the embedding of image on video is implemented using a computer and then the same logic is implemented for execution on a mobile phone. Experimental results demonstrate that, the method is feasible to be implemented using a computer and mobile phone. Image that is inserted on the video is extracted with an acceptable PSNR value. Execution time and power consumed in a mobile phone are within the acceptable limits. This ascertains the application's feasibility for a mobile phone.