Imperceptible Improvement using Edge Area Selection for Robust Video Watermarking Using Tchebichef - Singular Value Decomposition
International journal of intelligent engineering and systems · 2022
Watermarking is a technology to protect the copyright of multimedia data.Video is one of the most complex media compared to image or audio.In invisible watermarking, imperceptible aspects are important besides robustness.This research proposes a frame selection method based on the edge area.The frame with the most edge area is selected and used for watermark embedding with Tchebichef transformation and singular value decomposition.A dual-stage Arnold transform was carried out to spread the edge area, and the watermark was embedded more evenly to improve the imperceptibility quality.Based on the test results, this method can improve the peak signal to noise ratio (PSNR) quality by around 1dB to 2dB while still maintaining the robustness of the watermark compared to the previous method without edge area selection, and dual-stage Arnold transform.