StyDeco: Unsupervised Style Transfer with Distilling Priors and Semantic Decoupling

• URL: http://arxiv.org/abs/2508.01215v1
• Date: Sat, 02 Aug 2025 06:17:23 GMT
• Title: StyDeco: Unsupervised Style Transfer with Distilling Priors and Semantic Decoupling
• Authors: Yuanlin Yang, Quanjian Song, Zhexian Gao, Ge Wang, Shanshan Li, Xiaoyan Zhang,
• Abstract summary: StyDeco is an unsupervised framework that learns text representations specifically tailored for the style transfer task.<n>Our framework outperforms several existing approaches in both stylistic fidelity and structural preservation.
• Score: 5.12285618196312
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Diffusion models have emerged as the dominant paradigm for style transfer, but their text-driven mechanism is hindered by a core limitation: it treats textual descriptions as uniform, monolithic guidance. This limitation overlooks the semantic gap between the non-spatial nature of textual descriptions and the spatially-aware attributes of visual style, often leading to the loss of semantic structure and fine-grained details during stylization. In this paper, we propose StyDeco, an unsupervised framework that resolves this limitation by learning text representations specifically tailored for the style transfer task. Our framework first employs Prior-Guided Data Distillation (PGD), a strategy designed to distill stylistic knowledge without human supervision. It leverages a powerful frozen generative model to automatically synthesize pseudo-paired data. Subsequently, we introduce Contrastive Semantic Decoupling (CSD), a task-specific objective that adapts a text encoder using domain-specific weights. CSD performs a two-class clustering in the semantic space, encouraging source and target representations to form distinct clusters. Extensive experiments on three classic benchmarks demonstrate that our framework outperforms several existing approaches in both stylistic fidelity and structural preservation, highlighting its effectiveness in style transfer with semantic preservation. In addition, our framework supports a unique de-stylization process, further demonstrating its extensibility. Our code is vailable at https://github.com/QuanjianSong/StyDeco.

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