no code implementations • 28 Mar 2024 • Namhyuk Ahn, Wonhyuk Ahn, KiYoon Yoo, Daesik Kim, Seung-Hun Nam
Recent progress in diffusion models has profoundly enhanced the fidelity of image generation, but it has raised concerns about copyright infringements.
1 code implementation • 1 Aug 2023 • KiYoon Yoo, Wonhyuk Ahn, Nojun Kwak
By independently embedding sub-units of messages, the proposed method outperforms the existing works in terms of robustness and latency.
1 code implementation • 3 May 2023 • KiYoon Yoo, Wonhyuk Ahn, Jiho Jang, Nojun Kwak
Recent years have witnessed a proliferation of valuable original natural language contents found in subscription-based media outlets, web novel platforms, and outputs of large language models.
no code implementations • 19 Jul 2021 • Seung-Hun Nam, Wonhyuk Ahn, Myung-Joon Kwon, Jihyeon Kang, In-Jae Yu
In this article, we aim to detect the double compression of MPEG-4, a universal video codec that is built into surveillance systems and shooting devices.
no code implementations • 25 Mar 2021 • Minseok Yoon, Seung-Hun Nam, In-Jae Yu, Wonhyuk Ahn, Myung-Joon Kwon, Heung-Kyu Lee
The proposed network uses a stack of consecutive frames as the input and effectively learns interpolation artifacts using network blocks to learn spatiotemporal features.
no code implementations • 14 Aug 2020 • Seung-Hun Nam, In-Jae Yu, Seung-Min Mun, Daesik Kim, Wonhyuk Ahn
Multi-bit watermarking (MW) has been developed to improve robustness against signal processing operations and geometric distortions.
no code implementations • 5 Jul 2020 • Seung-Hun Nam, Wonhyuk Ahn, In-Jae Yu, Myung-Joon Kwon, Minseok Son, Heung-Kyu Lee
Seam carving is a representative content-aware image retargeting approach to adjust the size of an image while preserving its visually prominent content.
1 code implementation • 30 Jun 2020 • In-Jae Yu, Wonhyuk Ahn, Seung-Hun Nam, Heung-Kyu Lee
Convolutional neural networks (CNN) for image steganalysis demonstrate better performances with employing concepts from high-level vision tasks.
no code implementations • ECCV 2018 • Jinseok Park, Donghyeon Cho, Wonhyuk Ahn, Heung-Kyu Lee
Double JPEG detection is essential for detecting various image manipulations.