| Paper Abstract and Keywords |
| Presentation |
2025-11-30 13:45
Latent Space Watermarking in Stable Diffusion Using a VAE Encoder
Daichi Ishii, Jiaqing LIU, Yinhao Li, Yenwei Chen (Ritsumeikan Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
With the introduction of Low-Rank Adaptation (LoRA) in Stable Diffusion, fine-tuning on existing images has become more accessible, enabling the generation of diverse outputs. Alongside this progress, the protection of intellectual property rights has gained increasing importance, including copyright for image creators such as illustrators and photographers, portrait rights of individuals depicted, and trademark rights of characters. Against this backdrop, the research field of GenAI watermarking has recently attracted attention as a method that enables model training while preserving the quality of original images, yet intentionally degrades the quality of images generated by the resulting models.
Various approaches leveraging the characteristics of Stable Diffusion have been proposed for GenAI watermarking. In this study, we focus on the VAE encoder, which is responsible for mapping images into the latent space in Stable Diffusion. We propose a method that adjusts perturbations applied to the original image so that it is transformed into a perturbed image embedding a watermark within the latent space. The proposed method minimizes visual differences from the original image while maximizing latent-space discrepancies, thereby ensuring that perturbations emerge in generated images during LoRA training. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Stable Diffusion / Text to Image(T2I) / GenAI-Watermarking / / / / / |
| Reference Info. |
ITE Tech. Rep. |
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| Conference Information |
| Committee |
KANSAI |
| Conference Date |
2025-11-30 - 2025-11-30 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
OMU I-site Namba |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
The Institute of Image Information and Television Engineers, Kansai chapter, Workshop for young researchers |
| Paper Information |
| Registration To |
KANSAI |
| Conference Code |
2025-11-KANSAI |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Latent Space Watermarking in Stable Diffusion Using a VAE Encoder |
| Sub Title (in English) |
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| Keyword(1) |
Stable Diffusion |
| Keyword(2) |
Text to Image(T2I) |
| Keyword(3) |
GenAI-Watermarking |
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| 1st Author's Name |
Daichi Ishii |
| 1st Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
| 2nd Author's Name |
Jiaqing LIU |
| 2nd Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
| 3rd Author's Name |
Yinhao Li |
| 3rd Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
| 4th Author's Name |
Yenwei Chen |
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Ritsumeikan University (Ritsumeikan Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2025-11-30 13:45:00 |
| Presentation Time |
15 minutes |
| Registration for |
KANSAI |
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| Volume (vol) |
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