Flux Already Knows -- Activating Subject-Driven Image Generation without Training
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866915251301122048 |
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| author | Kang, Hao Fotiadis, Stathi Jiang, Liming Yan, Qing Jia, Yumin Liu, Zichuan Chong, Min Jin Lu, Xin |
| author_facet | Kang, Hao Fotiadis, Stathi Jiang, Liming Yan, Qing Jia, Yumin Liu, Zichuan Chong, Min Jin Lu, Xin |
| contents | We propose a simple yet effective zero-shot framework for subject-driven image generation using a vanilla Flux model. By framing the task as grid-based image completion and simply replicating the subject image(s) in a mosaic layout, we activate strong identity-preserving capabilities without any additional data, training, or inference-time fine-tuning. This "free lunch" approach is further strengthened by a novel cascade attention design and meta prompting technique, boosting fidelity and versatility. Experimental results show that our method outperforms baselines across multiple key metrics in benchmarks and human preference studies, with trade-offs in certain aspects. Additionally, it supports diverse edits, including logo insertion, virtual try-on, and subject replacement or insertion. These results demonstrate that a pre-trained foundational text-to-image model can enable high-quality, resource-efficient subject-driven generation, opening new possibilities for lightweight customization in downstream applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_11478 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Flux Already Knows -- Activating Subject-Driven Image Generation without Training Kang, Hao Fotiadis, Stathi Jiang, Liming Yan, Qing Jia, Yumin Liu, Zichuan Chong, Min Jin Lu, Xin Computer Vision and Pattern Recognition Artificial Intelligence We propose a simple yet effective zero-shot framework for subject-driven image generation using a vanilla Flux model. By framing the task as grid-based image completion and simply replicating the subject image(s) in a mosaic layout, we activate strong identity-preserving capabilities without any additional data, training, or inference-time fine-tuning. This "free lunch" approach is further strengthened by a novel cascade attention design and meta prompting technique, boosting fidelity and versatility. Experimental results show that our method outperforms baselines across multiple key metrics in benchmarks and human preference studies, with trade-offs in certain aspects. Additionally, it supports diverse edits, including logo insertion, virtual try-on, and subject replacement or insertion. These results demonstrate that a pre-trained foundational text-to-image model can enable high-quality, resource-efficient subject-driven generation, opening new possibilities for lightweight customization in downstream applications. |
| title | Flux Already Knows -- Activating Subject-Driven Image Generation without Training |
| topic | Computer Vision and Pattern Recognition Artificial Intelligence |
| url | https://arxiv.org/abs/2504.11478 |