Installation

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This repository provides instructions to replicate the Only-Style Conda environment. Follow the steps below to set up the environment on your local machine.

Prerequisites

Ensure the following software is installed on your system:

• Conda

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Steps to Install the Environment

1. Clone or Download the Repository

   Download or clone the repository that contains the environment.yml file.

2. Create the Conda Environment

   Run the following command to create the environment:

   conda env create -f environment.yml
   

Inference

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Use the following command to generate a stylistically aligned image pair without content leakage:

python Only_Style_CLI.py --seed <seed_value> --S_ref "<reference_sentence>" --ref_token "<reference_token>" --S_tgt "<target_sentence>" --tgt_token "<target_token>" --style "<style_description>" --precision <precision_value> --output_dir "<output_directory>"

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Below is a breakdown of the arguments:

Argument	Description	Example Value
--seed	Random seed for reproducibility.	42
--S_ref	Description of the stylistic reference subject.	"A cat"
--ref_token	Token identifying the reference subject.	"cat"
--S_tgt	Description of the target subject.	"A train"
--tgt_token	Token identifying the target subject.	"train"
--style	Description of the desired style for the image.	"in 3D rendering style"
--precision	Precision of the binary search algorithm used to determine the optimal alpha (see manuscript).	0.03
--output_dir	Directory where the generated images and logs will be saved.	"./output"

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Example

python Only_Style_CLI.py --seed 42 --S_ref "A cat" --ref_token "cat" --S_tgt "A train" --tgt_token "train" --style "in 3D rendering style" --precision 0.03 --output_dir "./output"

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Outputs

The inference script produces the following outputs in the directory specified by --output_dir:

1. Reference Image (Reference.png):

   • Image used as a stylistic reference.

2. Style-Aligned Target Image (StyleAligned_Target.png):

   • Target image aligned stylistically via StyleAligned.

3. Content Leakage Heatmap (StyleAligned_Leakage.png):

   • Visualization of content leakage, overlaid as a heatmap on the target image mentioned above.

4. Optimized Target Image (Only_Style_Target.png):

   • Final image generated using controlled style alignment, avoiding content leakage.

5. Log File (log.txt):

   • Contains details such as the number of leaky patches detected in every step of the binary search process for the optimal alpha.

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Code Development Status

• Inference code for Only-Style
• Support for multi-image and multi-subject cases
• Support for real stylistic references
• Support for Generalized Leakage Localization (input reference-target pair)
• Evaluation code

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Citation

If you find this work useful, please cite:

@misc{aravanis2025onlystylestylisticconsistencyimage,
      title={Only-Style: Stylistic Consistency in Image Generation without Content Leakage}, 
      author={Tilemachos Aravanis and Panagiotis Filntisis and Petros Maragos and George Retsinas},
      year={2025},
      eprint={2506.09916},
      archivePrefix={arXiv},
      primaryClass={cs.CV},
      url={https://arxiv.org/abs/2506.09916}, 
}

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Acknowledgements

This work builds upon the Style-Aligned repository by Google Research. We thank the authors for making their code publicly available.