WOUAF: Weight Modulation for User Attribution and Fingerprinting in Text-to-Image Diffusion Models

Abstract

The rapid advancement of generative models, facilitating the creation of hyper-realistic images from textual de-scriptions, has concurrently escalated critical societal con-cerns such as misinformation. Although providing some mitigation, traditional fingerprinting mechanisms fall short in attributing responsibility for the malicious use of syn-thetic images. This paper introduces a novel approach to model fingerprinting that assigns responsibility for the gen-erated images, thereby serving as a potential countermea-sure to model misuse. Our method modifies generative mod-els based on each user's unique digital fingerprint, imprinting a unique identifier onto the resultant content that can be traced back to the user. This approach, incorporating fine-tuning into Text-to-Image (T2I) tasks using the Stable Diffusion Model, demonstrates near-perfect attribution ac-curacy with a minimal impact on output quality. Through extensive evaluation, we show that our method outperforms baseline methods with an average improvement of 11 % in handling image post-processes. Our method presents a promising and novel avenue for accountable model distribution and responsible use. Our code is available in https://github.com/kylemin/WQUAF.