SolidMark: Evaluating Image Memorization in Generative Models

Fuente: arXiv
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Autori principali: Kriplani, Nicky, Pham, Minh, Somepalli, Gowthami, Hegde, Chinmay, Cohen, Niv
Natura: Preprint
Pubblicazione: 2025
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author Kriplani, Nicky
Pham, Minh
Somepalli, Gowthami
Hegde, Chinmay
Cohen, Niv
author_facet Kriplani, Nicky
Pham, Minh
Somepalli, Gowthami
Hegde, Chinmay
Cohen, Niv
contents Recent works have shown that diffusion models are able to memorize training images and emit them at generation time. However, the metrics used to evaluate memorization and its mitigation techniques suffer from dataset-dependent biases and struggle to detect whether a given specific image has been memorized or not. This paper begins with a comprehensive exploration of issues surrounding memorization metrics in diffusion models. Then, to mitigate these issues, we introduce $\rm \style{font-variant: small-caps}{SolidMark}$, a novel evaluation method that provides a per-image memorization score. We then re-evaluate existing memorization mitigation techniques. We also show that $\rm \style{font-variant: small-caps}{SolidMark}$ is capable of evaluating fine-grained pixel-level memorization. Finally, we release a variety of models based on $\rm \style{font-variant: small-caps}{SolidMark}$ to facilitate further research for understanding memorization phenomena in generative models. All of our code is available at https://github.com/NickyDCFP/SolidMark.
format Preprint
id arxiv_https___arxiv_org_abs_2503_00592
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle SolidMark: Evaluating Image Memorization in Generative Models
Kriplani, Nicky
Pham, Minh
Somepalli, Gowthami
Hegde, Chinmay
Cohen, Niv
Machine Learning
Recent works have shown that diffusion models are able to memorize training images and emit them at generation time. However, the metrics used to evaluate memorization and its mitigation techniques suffer from dataset-dependent biases and struggle to detect whether a given specific image has been memorized or not. This paper begins with a comprehensive exploration of issues surrounding memorization metrics in diffusion models. Then, to mitigate these issues, we introduce $\rm \style{font-variant: small-caps}{SolidMark}$, a novel evaluation method that provides a per-image memorization score. We then re-evaluate existing memorization mitigation techniques. We also show that $\rm \style{font-variant: small-caps}{SolidMark}$ is capable of evaluating fine-grained pixel-level memorization. Finally, we release a variety of models based on $\rm \style{font-variant: small-caps}{SolidMark}$ to facilitate further research for understanding memorization phenomena in generative models. All of our code is available at https://github.com/NickyDCFP/SolidMark.
title SolidMark: Evaluating Image Memorization in Generative Models
topic Machine Learning
url https://arxiv.org/abs/2503.00592