A Fragile Video Watermarking Algorithm for Content Authentication Based on Block Mean and Modulation Factor

Provided by: International Journal of Computer Applications
Topic: Security
Format: PDF
Most watermarking algorithms are either robust watermarking for copyright protection or fragile watermarking for tamper detection. This paper proposes a fragile video watermarking algorithm that has the ability to detect tamper in spatial domains. The original video frame is converted from RGB color space into YCbCr color space, then the chrominance component Cb is partitioned into non-overlapping blocks of pixels according to the number of bits of the original watermark. The watermark bits are embedded using a mathematical rule for each block separately.

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