DWT Collusion Resistant Video Watermarking Using Tardos Family Codes

Abstract

A fingerprinting process is an efficient means of protecting multimedia content and preventing illegal distribution. The goal is to find individuals who were engaged in the production and illicit distribution of a multimedia product. We investigated discrete wavelet transform (DWT) based blind video watermarking strategy tied with probabilistic fingerprinting codes to avoid collusion among higher-resolution videos. We used FFmpeg to run a variety of collusion attacks (e.g., averaging, darkening, and lighten) on high resolution video and compared the most often suggested code generator and decoders in the literature to find at least one colluder within the necessary code length. The Laarhoven codes generator and nearest neighbor search (NNS) decoder outperforms all other suggested generators and decoders in the literature in terms of computational time, colluder detection and resources.