Image Feature Extraction
Transformers

Add pipeline tag and library name

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  1. README.md +38 -45
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- ---
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- license: apache-2.0
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- ---
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- # GenHancer: Imperfect Generative Models are Secretly Strong Vision-Centric Enhancers
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- Code: https://github.com/mashijie1028/GenHancer/
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- Paper: https://arxiv.org/abs/2503.19480
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- Project Page: https://mashijie1028.github.io/GenHancer/
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- ## Introduction
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- The synergy between generative and discriminative models receives growing attention. While discriminative Contrastive Language-Image Pre-Training (CLIP) excels in high-level semantics, it struggles with perceiving fine-grained visual details. Generally, to enhance representations, generative models take CLIP's visual features as conditions for reconstruction. However, the underlying principle remains underexplored.
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- In this work, we empirically found that **visually** perfect generations are not always optimal for representation enhancement. The essence lies in effectively extracting fine-grained knowledge from generative models while mitigating irrelevant information. To explore critical factors, we delve into three aspects: (1) Conditioning mechanisms: We found that even a small number of local tokens can drastically reduce the difficulty of reconstruction, leading to collapsed training. We thus conclude that utilizing **only** global visual tokens as conditions is the most effective strategy. (2) Denoising configurations: We observed that end-to-end training introduces extraneous information. To address this, we propose a two-stage training strategy to prioritize learning useful visual knowledge. Additionally, we demonstrate that lightweight denoisers can yield remarkable improvements. (3) Generation paradigms: We explore both continuous and discrete denoisers with desirable outcomes, validating the versatility of our method.
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- Through our in-depth exploration, we have finally arrived at an effective method that consistently outperforms prior arts on the MMVP-VLM benchmark, *e.g.*, 6.0% on OpenAICLIP. The enhanced CLIP can be plugged into multimodal large language models for better vision-centric performance.
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- ## This repo
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- The proposed two-stage post-training scheme serves as a *plug-and-play* method to enhance pre-trained CLIPs' fine-grained representations, and here we release the enhanced model weights of [OpenAICLIP](https://huggingface.co/openai/clip-vit-large-patch14-336), [MetaCLIP](https://huggingface.co/facebook/metaclip-h14-fullcc2.5b) and [SigLIP](https://huggingface.co/google/siglip-so400m-patch14-384).
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- We also attach the evaluation codes in `evaluation/`.
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- ## Citation
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- ```
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- @article{ma2025genhancer,
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- title={GenHancer: Imperfect Generative Models are Secretly Strong Vision-Centric Enhancers},
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- author={Ma, Shijie and Ge, Yuying and Wang, Teng and Guo, Yuxin and Ge, Yixiao and Shan, Ying},
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- journal={arXiv preprint arXiv:2503.19480},
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- year={2025}
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- }
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- ```
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-
 
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+ ---
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+ license: apache-2.0
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+ pipeline_tag: image-feature-extraction
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+ library_name: transformers
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+ ---
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+
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+ # GenHancer: Imperfect Generative Models are Secretly Strong Vision-Centric Enhancers
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+
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+ Code: https://github.com/mashijie1028/GenHancer/
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+
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+ Paper: https://arxiv.org/abs/2503.19480
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+
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+ Project Page: https://mashijie1028.github.io/GenHancer/
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+
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+ ## Introduction
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+
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+ The synergy between generative and discriminative models receives growing attention. While discriminative Contrastive Language-Image Pre-Training (CLIP) excels in high-level semantics, it struggles with perceiving fine-grained visual details. Generally, to enhance representations, generative models take CLIP's visual features as conditions for reconstruction. However, the underlying principle remains underexplored.
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+
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+ In this work, we empirically found that **visually** perfect generations are not always optimal for representation enhancement. The essence lies in effectively extracting fine-grained knowledge from generative models while mitigating irrelevant information. To explore critical factors, we delve into three aspects: (1) Conditioning mechanisms: We found that even a small number of local tokens can drastically reduce the difficulty of reconstruction, leading to collapsed training. We thus conclude that utilizing **only** global visual tokens as conditions is the most effective strategy. (2) Denoising configurations: We observed that end-to-end training introduces extraneous information. To address this, we propose a two-stage training strategy to prioritize learning useful visual knowledge. Additionally, we demonstrate that lightweight denoisers can yield remarkable improvements. (3) Generation paradigms: We explore both continuous and discrete denoisers with desirable outcomes, validating the versatility of our method.
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+
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+ Through our in-depth exploration, we have finally arrived at an effective method that consistently outperforms prior arts on the MMVP-VLM benchmark, *e.g.*, 6.0% on OpenAICLIP. The enhanced CLIP can be plugged into multimodal large language models for better vision-centric performance.
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+ ## This repo
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+ The proposed two-stage post-training scheme serves as a *plug-and-play* method to enhance pre-trained CLIPs' fine-grained representations, and here we release the enhanced model weights of [OpenAICLIP](https://huggingface.co/openai/clip-vit-large-patch14-336), [MetaCLIP](https://huggingface.co/facebook/metaclip-h14-fullcc2.5b) and [SigLIP](https://huggingface.co/google/siglip-so400m-patch14-384).
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+ We also attach the evaluation codes in `evaluation/`.
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+ ## Citation
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+ ```
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+ @article{ma2025genhancer,
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+ title={GenHancer: Imperfect Generative Models are Secretly Strong Vision-Centric Enhancers},
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+ author={Ma, Shijie and Ge, Yuying and Wang, Teng and Guo, Yuxin and Ge, Yixiao and Shan, Ying},
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+ journal={arXiv preprint arXiv:2503.19480},
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+ year={2025}
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+ }
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+ ```