Pixel Seal: Adversarial-only training for invisible image and video watermarking

Fuente: arXiv
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Main Authors: Souček, Tomáš, Fernandez, Pierre, Elsahar, Hady, Rebuffi, Sylvestre-Alvise, Lacatusu, Valeriu, Tran, Tuan, Sander, Tom, Mourachko, Alexandre
Format: Preprint
Published: 2025
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author Souček, Tomáš
Fernandez, Pierre
Elsahar, Hady
Rebuffi, Sylvestre-Alvise
Lacatusu, Valeriu
Tran, Tuan
Sander, Tom
Mourachko, Alexandre
author_facet Souček, Tomáš
Fernandez, Pierre
Elsahar, Hady
Rebuffi, Sylvestre-Alvise
Lacatusu, Valeriu
Tran, Tuan
Sander, Tom
Mourachko, Alexandre
contents Invisible watermarking is essential for tracing the provenance of digital content. However, training state-of-the-art models remains notoriously difficult, with current approaches often struggling to balance robustness against true imperceptibility. This work introduces Pixel Seal, which sets a new state-of-the-art for image and video watermarking. We first identify three fundamental issues of existing methods: (i) the reliance on proxy perceptual losses such as MSE and LPIPS that fail to mimic human perception and result in visible watermark artifacts; (ii) the optimization instability caused by conflicting objectives, which necessitates exhaustive hyperparameter tuning; and (iii) reduced robustness and imperceptibility of watermarks when scaling models to high-resolution images and videos. To overcome these issues, we first propose an adversarial-only training paradigm that eliminates unreliable pixel-wise imperceptibility losses. Second, we introduce a three-stage training schedule that stabilizes convergence by decoupling robustness and imperceptibility. Third, we address the resolution gap via high-resolution adaptation, employing JND-based attenuation and training-time inference simulation to eliminate upscaling artifacts. We thoroughly evaluate the robustness and imperceptibility of Pixel Seal on different image types and across a wide range of transformations, and show clear improvements over the state-of-the-art. We finally demonstrate that the model efficiently adapts to video via temporal watermark pooling, positioning Pixel Seal as a practical and scalable solution for reliable provenance in real-world image and video settings.
format Preprint
id arxiv_https___arxiv_org_abs_2512_16874
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Pixel Seal: Adversarial-only training for invisible image and video watermarking
Souček, Tomáš
Fernandez, Pierre
Elsahar, Hady
Rebuffi, Sylvestre-Alvise
Lacatusu, Valeriu
Tran, Tuan
Sander, Tom
Mourachko, Alexandre
Computer Vision and Pattern Recognition
Artificial Intelligence
Cryptography and Security
Machine Learning
Invisible watermarking is essential for tracing the provenance of digital content. However, training state-of-the-art models remains notoriously difficult, with current approaches often struggling to balance robustness against true imperceptibility. This work introduces Pixel Seal, which sets a new state-of-the-art for image and video watermarking. We first identify three fundamental issues of existing methods: (i) the reliance on proxy perceptual losses such as MSE and LPIPS that fail to mimic human perception and result in visible watermark artifacts; (ii) the optimization instability caused by conflicting objectives, which necessitates exhaustive hyperparameter tuning; and (iii) reduced robustness and imperceptibility of watermarks when scaling models to high-resolution images and videos. To overcome these issues, we first propose an adversarial-only training paradigm that eliminates unreliable pixel-wise imperceptibility losses. Second, we introduce a three-stage training schedule that stabilizes convergence by decoupling robustness and imperceptibility. Third, we address the resolution gap via high-resolution adaptation, employing JND-based attenuation and training-time inference simulation to eliminate upscaling artifacts. We thoroughly evaluate the robustness and imperceptibility of Pixel Seal on different image types and across a wide range of transformations, and show clear improvements over the state-of-the-art. We finally demonstrate that the model efficiently adapts to video via temporal watermark pooling, positioning Pixel Seal as a practical and scalable solution for reliable provenance in real-world image and video settings.
title Pixel Seal: Adversarial-only training for invisible image and video watermarking
topic Computer Vision and Pattern Recognition
Artificial Intelligence
Cryptography and Security
Machine Learning
url https://arxiv.org/abs/2512.16874