HYBRID TRANSFORM BASED ROBUST WATERMARKING SCHEME FOR VIDEO OBJECTS
R G Purnima · Journal of Critical Reviews · 2020
With the rapid advancement in technology in the recent years, the usage of Internet has immensely increased leading to voluminous generation and transfer of multimedia data. With the increase in data dissemination, there exists a need for prevention of potential issues like copyright violation, data authenticity and ownership identity theft. This paper provides a method to guard the copyright information with the insertion of a watermark image in the video frames that helps to protect the ownership identity of the original video. In the suggested technique, an image is embedded into LLLL band obtained by second level wavelet disintegration as a watermark as well as into the HH band acquired by applying single level discrete wavelet transform. Finally, the robustness of the image watermark has been evaluated after implementing several attacks like cropping, rotation and noise addition and effectively taken out the watermark from the affected frames of the video.