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- W51324148 abstract "This paper deals with practical implementation of semi-fragile watermarking for CCTV footage authentication. Despite the variety of available literature, certain important aspects remain unaddressed. The existing schemes are mostly evaluated against purely academic attacks, and the most practical attacks on information trust remain unaddressed. In this paper, we focus on the collage and the visually insignificant changes attacks, which are of critical importance in the video surveillance scenario. Based on a well-known robust hash function, we design three variants of a digital image authentication scheme. We show that the choice of the watermark embedding technique, although unaddressed in the literature, has critical influence on the tampering detection accuracy. Based on the performed evaluation, we also propose small modifications of the original algorithm, which lead to further improvement of the classification performance." @default.
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- W51324148 date "2013-01-01" @default.
- W51324148 modified "2023-09-25" @default.
- W51324148 title "Practical Implementation of Visual Hash Functions for CCTV Footage Authentication" @default.
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- W51324148 doi "https://doi.org/10.1007/978-3-642-38559-9_27" @default.
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