Research Paper | Computer Science & Engineering | India | Volume 9 Issue 11, November 2020
Ensuring Video Integrity Using Watermark - Chaining by SVD and DWT
Aditya Tiwari, Ayush Pandey
Abstract: In the era of increasing crime rates and thefts, the video evidences plays an important part in identifying the theft and helps in conviction of the people involved in the foul act. As these video evidences plays an important part the probability of these evidences getting tampered is very high, therefore there is a high need to protect these evidence. Our algorithm implements a robust mechanism through which the tampering in the video evidence can be identified. The video evidence is divided in the number of frames according to the frame rate and the length of the video then the first frame of the video is encrypted by the genesis watermark of the video, then the other frames are encrypted using the previous frames mathematically operated already by the genesis watermark which results in the formation of a blockchain like structure in the video itself. A blockchain is a structure where the previous blocks are connected to the next through encryption and any block missing in between the chain can verify that the blockchain is tampered. The whole video once encrypted shows almost no signs of watermarking or glitches. Now if the video is tampered in a way such that the frames are missing from the video, the verification algorithm can find the exact point of time in the video from which the frames are missing as it breaks the blockchain of frames. The algorithm can verify that the video evidence is tampered. This concept can be used in wide range of categories where video evidences or in general videos are used, for example road accidents CCTV videos, surgical videos for organs where trafficking of human organs can be done etc.
Keywords: Watermarked blockchain, DWT, SVD, Logistic mapping, image processing, video processing, watermark embedding
Edition: Volume 9 Issue 11, November 2020,
Pages: 470 - 478
How to Cite this Article?
Aditya Tiwari, Ayush Pandey, "Ensuring Video Integrity Using Watermark - Chaining by SVD and DWT", International Journal of Science and Research (IJSR), https://www.ijsr.net/get_abstract.php?paper_id=SR201107153759, Volume 9 Issue 11, November 2020, 470 - 478
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