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Video Authentication by Visible Watermarking | ||
| Al-Ma'mon College Journal | ||
| Article 1, Volume 0, Issue 30, 2018, Pages 255-279 | ||
| Author | ||
| Ammar Fakhri Mahdi | ||
| Abstract | ||
| Video security covers many subjects as authentication and copyright protection for multimedia products and thus the video watermarking technique is necessary, but the main problem in video is its big size, since video includes a lot of redundant information so that compressing it helps to reduce the size and saves the transmission bandwidth and storage space. In this paper a visible watermarking algorithm for digital video based on Haar Discrete Wavelet Transform (HDWT) was proposed. The video is first compressed using Haar discrete wavelet transform in order to reduce its size and then the visible watermark image is embedded into the resulting compressed video using again Haar discrete wavelet transform to improve the video authentication. In order to increase the protection of manipulation video, the embedded process is done selectively by the authorized user, so the user can select the choice of the region to embed the watermark (the upper left corner, the upper-right corner, the lower left corner, the lower-right corner) or the watermark can appear randomly in any region in the video. The proposed algorithm is applied on many color videos for format (AVI) with many color watermark images for format (JPEG), and the experimental results are evaluated by Peak Signal to Noise Ratio (PSNR) and Normalized Cross Correlation (NCC) and it shows high imperceptibility where there is no noticeable difference between the original video and the watermarked compressed video. Finally, the robustness of the proposed algorithm is achieved against various attacks like Gaussian noise, Salt & Pepper noise, rotation and resizing. | ||
| Keywords | ||
| Video Watermarking; Haar Discrete Wavelet Transform; Peak Signal to Noise Ratio | ||
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