Reproduce “Practical Deep Dispersed Watermarking with Synchronization and Fusion” on OpenResearch

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About this paper

Hengchang Guo, Qilong Zhang, Junwei Luo, Feng Guo, Wenbin Zhang, Xiaodong Su, Minglei Li

ByteDance researchers developed DWSF, a deep watermarking framework enabling practical, robust embedding and extraction for arbitrary-resolution images. It achieves superior visual quality with 47.38dB PSNR, minimal file size increases, and outperforms state-of-the-art methods by an average of 23-40% in bit accuracy against challenging combined attacks.

Key insights

  • Dispersed, block-based embedding with a consistent message allows the watermarking framework to scale to arbitrary image resolutions while maintaining high visual quality and minimal file size overhead.
  • Combining a dedicated segmentation model (U2-Net), a Pad&Split strategy, and geometric transformation estimation provides robust synchronization crucial for extracting watermarks from images subjected to geometric attacks.
  • Similarity-based message fusion from multiple embedded blocks significantly enhances the reliability of watermark extraction by filtering unreliable messages, making the system highly robust against various distortions.

Summary by alphaXiv.

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