Injecting Image Guidance into Text-Conditioned Diffusion Models at Inference
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866917529298927616 |
|---|---|
| author | Żywot, Agata Skylitsis, Iason Nijdam, Thijmen Tzifa-Kratira, Zoe Prinzhorn, Derck Szewczyk, Konrad Bhowmik, Aritra |
| author_facet | Żywot, Agata Skylitsis, Iason Nijdam, Thijmen Tzifa-Kratira, Zoe Prinzhorn, Derck Szewczyk, Konrad Bhowmik, Aritra |
| contents | Text-to-image diffusion models like Stable Diffusion generate high-quality images from text, but lack a way to inject visual guidance (e.g. sketches, styles) at inference without retraining. Existing methods either require computationally expensive fine-tuning or rely on style transfer techniques that risk semantic misalignment with textual prompts. We introduce Visual Concept Fusion (VCF), the first method offering dual conditioning on both an image and text prompt at inference time without any concept-specific training. VCF enables visual concept injection into Stable Diffusion by aligning CLIP image features with the text embedding space. VCF consists of three components: (1) a lightweight aligner that maps image tokens to the text embedding manifold using InfoNCE and cross-attention reconstruction losses, (2) a fusion strategy that preserves both textual and visual semantics, and (3) an optional Prompt-Noise Optimization (PNO) module for test-time refinement. Our experiments demonstrate that VCF successfully transfers visual attributes including style, composition, and color palette from reference images while maintaining prompt adherence. Quantitative results show a trade-off between text alignment (CLIP score) and visual correspondence (LPIPS), with VCF outperforming baselines in reference fidelity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_25191 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Injecting Image Guidance into Text-Conditioned Diffusion Models at Inference Żywot, Agata Skylitsis, Iason Nijdam, Thijmen Tzifa-Kratira, Zoe Prinzhorn, Derck Szewczyk, Konrad Bhowmik, Aritra Computer Vision and Pattern Recognition Text-to-image diffusion models like Stable Diffusion generate high-quality images from text, but lack a way to inject visual guidance (e.g. sketches, styles) at inference without retraining. Existing methods either require computationally expensive fine-tuning or rely on style transfer techniques that risk semantic misalignment with textual prompts. We introduce Visual Concept Fusion (VCF), the first method offering dual conditioning on both an image and text prompt at inference time without any concept-specific training. VCF enables visual concept injection into Stable Diffusion by aligning CLIP image features with the text embedding space. VCF consists of three components: (1) a lightweight aligner that maps image tokens to the text embedding manifold using InfoNCE and cross-attention reconstruction losses, (2) a fusion strategy that preserves both textual and visual semantics, and (3) an optional Prompt-Noise Optimization (PNO) module for test-time refinement. Our experiments demonstrate that VCF successfully transfers visual attributes including style, composition, and color palette from reference images while maintaining prompt adherence. Quantitative results show a trade-off between text alignment (CLIP score) and visual correspondence (LPIPS), with VCF outperforming baselines in reference fidelity. |
| title | Injecting Image Guidance into Text-Conditioned Diffusion Models at Inference |
| topic | Computer Vision and Pattern Recognition |
| url | https://arxiv.org/abs/2605.25191 |