提出低成本攻击方法，可无损移除图像水印

Hide&Seek: Remove Image Watermarks with Negligible Cost via Pixel-wise Reconstruction

• 通过像素级重建实现水印精准移除
• 移除后图像视觉质量几乎不受影响
• 适用于评估现有水印防御的可靠性

水印技术已成为防范机器生成图像（MGIs）滥用的关键手段。然而，这些防护措施的鲁棒性仍缺乏深入研究。为揭示当前最优主动图像水印防御的局限性，我们提出 HIDE&SEEK（HS），一套通用且成本低廉的攻击方案，能够可靠地移除嵌入式水印，同时保持高视觉保真度。

原文摘要 · Abstract (English)

Watermarking has emerged as a key defense against the misuse of machine-generated images (MGIs). Yet the robustness of these protections remains underexplored. To reveal the limits of SOTA proactive image watermarking defenses, we propose HIDE&SEEK (HS), a suite of versatile and cost-effective attacks that reliably remove embedded watermarks while preserving high visual fidelity.

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