TGIF2 : extended text-guided inpainting forgery dataset and benchmark
- Author
- Hannes Mareen (UGent) , Dimitrios Karageorgiou, Paschalis Giakoumoglou, Peter Lambert (UGent) , Symeon Papadopoulos and Glenn Van Wallendael (UGent)
- Organization
- Project
- Abstract
- Generative AI has made text-guided inpainting a powerful image editing tool, but at the same time a growing challenge for media forensics. Existing benchmarks, including our text-guided inpainting forgery (TGIF) dataset, show that image forgery localization (IFL) methods can localize manipulations in spliced images but struggle in fully regenerated (FR) images, while synthetic image detection (SID) methods can detect fully regenerated images but cannot perform localization. With new generative inpainting models emerging and the open problem of localization in FR images remaining, updated datasets and benchmarks are needed. We introduce TGIF2, an extended version of TGIF, that captures recent advances in text-guided inpainting and enables a deeper analysis of forensic robustness. TGIF2 augments the original dataset with edits generated by FLUX.1 models, as well as with random non-semantic masks. Using the TGIF2 dataset, we conduct a forensic evaluation spanning IFL and SID, including fine-tuning IFL methods on FR images and generative super-resolution attacks. Our experiments show that both IFL and SID methods degrade on FLUX.1 manipulations, highlighting limited generalization. Additionally, while fine-tuning improves localization on FR images, evaluation with random non-semantic masks reveals object bias. Furthermore, generative super-resolution significantly weakens forensic traces, demonstrating that common image enhancement operations can undermine current forensic pipelines. In summary, TGIF2 provides an updated dataset and benchmark, which enables new insights into the challenges posed by modern inpainting and AI-based image enhancements. TGIF2 is available at https://github.com/IDLabMedia/tgif-dataset.
- Keywords
- Image forensics, Forgery detection, Forgery localization, Synthetic image detection, AI-generated image, detection, Super resolution
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-01KRXA57Z2X70TNPSQJD8TGCAP
- MLA
- Mareen, Hannes, et al. “TGIF2 : Extended Text-Guided Inpainting Forgery Dataset and Benchmark.” JOURNAL ON INFORMATION SECURITY, vol. 2026, no. 1, 2026, doi:10.1186/s13635-026-00235-9.
- APA
- Mareen, H., Karageorgiou, D., Giakoumoglou, P., Lambert, P., Papadopoulos, S., & Van Wallendael, G. (2026). TGIF2 : extended text-guided inpainting forgery dataset and benchmark. JOURNAL ON INFORMATION SECURITY, 2026(1). https://doi.org/10.1186/s13635-026-00235-9
- Chicago author-date
- Mareen, Hannes, Dimitrios Karageorgiou, Paschalis Giakoumoglou, Peter Lambert, Symeon Papadopoulos, and Glenn Van Wallendael. 2026. “TGIF2 : Extended Text-Guided Inpainting Forgery Dataset and Benchmark.” JOURNAL ON INFORMATION SECURITY 2026 (1). https://doi.org/10.1186/s13635-026-00235-9.
- Chicago author-date (all authors)
- Mareen, Hannes, Dimitrios Karageorgiou, Paschalis Giakoumoglou, Peter Lambert, Symeon Papadopoulos, and Glenn Van Wallendael. 2026. “TGIF2 : Extended Text-Guided Inpainting Forgery Dataset and Benchmark.” JOURNAL ON INFORMATION SECURITY 2026 (1). doi:10.1186/s13635-026-00235-9.
- Vancouver
- 1.Mareen H, Karageorgiou D, Giakoumoglou P, Lambert P, Papadopoulos S, Van Wallendael G. TGIF2 : extended text-guided inpainting forgery dataset and benchmark. JOURNAL ON INFORMATION SECURITY. 2026;2026(1).
- IEEE
- [1]H. Mareen, D. Karageorgiou, P. Giakoumoglou, P. Lambert, S. Papadopoulos, and G. Van Wallendael, “TGIF2 : extended text-guided inpainting forgery dataset and benchmark,” JOURNAL ON INFORMATION SECURITY, vol. 2026, no. 1, 2026.
@article{01KRXA57Z2X70TNPSQJD8TGCAP,
abstract = {{Generative AI has made text-guided inpainting a powerful image editing tool, but at the same time a growing challenge for media forensics. Existing benchmarks, including our text-guided inpainting forgery (TGIF) dataset, show that image forgery localization (IFL) methods can localize manipulations in spliced images but struggle in fully regenerated (FR) images, while synthetic image detection (SID) methods can detect fully regenerated images but cannot perform localization. With new generative inpainting models emerging and the open problem of localization in FR images remaining, updated datasets and benchmarks are needed. We introduce TGIF2, an extended version of TGIF, that captures recent advances in text-guided inpainting and enables a deeper analysis of forensic robustness. TGIF2 augments the original dataset with edits generated by FLUX.1 models, as well as with random non-semantic masks. Using the TGIF2 dataset, we conduct a forensic evaluation spanning IFL and SID, including fine-tuning IFL methods on FR images and generative super-resolution attacks. Our experiments show that both IFL and SID methods degrade on FLUX.1 manipulations, highlighting limited generalization. Additionally, while fine-tuning improves localization on FR images, evaluation with random non-semantic masks reveals object bias. Furthermore, generative super-resolution significantly weakens forensic traces, demonstrating that common image enhancement operations can undermine current forensic pipelines. In summary, TGIF2 provides an updated dataset and benchmark, which enables new insights into the challenges posed by modern inpainting and AI-based image enhancements. TGIF2 is available at https://github.com/IDLabMedia/tgif-dataset.}},
articleno = {{13}},
author = {{Mareen, Hannes and Karageorgiou, Dimitrios and Giakoumoglou, Paschalis and Lambert, Peter and Papadopoulos, Symeon and Van Wallendael, Glenn}},
issn = {{3091-4515}},
journal = {{JOURNAL ON INFORMATION SECURITY}},
keywords = {{Image forensics,Forgery detection,Forgery localization,Synthetic image detection,AI-generated image,detection,Super resolution}},
language = {{eng}},
number = {{1}},
pages = {{20}},
title = {{TGIF2 : extended text-guided inpainting forgery dataset and benchmark}},
url = {{http://doi.org/10.1186/s13635-026-00235-9}},
volume = {{2026}},
year = {{2026}},
}
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