FRAGILE WATERMARKING SCHEME FOR AUTHENTICATION ON VIDEO FILE

• Main Author: Ramadhan - NIM: 23515050 , Fitrandi
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/27365
• Institution: Institut Teknologi Bandung

Nowadays, usage of media file such as pictures, animation, and video are very high. One of the cause of this high traffic is increased usage of media social and message board across the internet. Statistics confirmed that one of the biggest message board, reddit, has reached 150 million submission in 2015. This increasing trend has also increase the usage of picture and video media on the internet. Every media that are shared on the social media or message board often submitted to send some kind of message, either with good or ulterior motive on some. There are some cases in Indonesia of people reporting to the law enforcement of defamation on the internet. Video as one of the media used, often act as evidence on these lawsuits. These evidence had to be the same and undergo no change in any circumstances. This research will analyze and develop a fragile watermarking scheme using SVD. This scheme will utilize the u and v matrix of the decomposition to construct a binary matrix that will be transformed using arnold’s cat map. The binary matrix will then embedded as the watermark on the LSB plane of the host image. Extraction will take that LSB plane and construct a new binary matrix from the host image using the same proccess as the embedding. These two matrices will then be operated with xor and give us the difference if there is any. These scheme hoped to become one of the method to detect any tamper be it intentionally or accidental.