Investigating Robust Unsupervised Stylegan Image Restoration

Akbar Ali1,Indra Deep Mastan2,Shanmuganathan Raman1

ICIP 2025

1 Indian Institute Of Technology Gandhinagar, India,     2 Indian Institute of Technology (BHU) Varanasi, India.
Paper        Supplementary        Drone Data(99)        Code

Abstract

Recently, generative priors have shown significant improvement for unsupervised image restoration. This study explores the incorporation of multiple loss functions that capture various perceptual and structural aspects of image quality. Our proposed method improves robustness across multiple tasks, including denoising, upsampling, inpainting, and deartifacting, by utilizing a comprehensive loss function based on Learned Perceptual Image Patch Similarity(LPIPS), Multi-Scale Structural Similarity Index Measure Loss(MS-SSIM), Consistency, Feature, and Gradient losses. The experimental results demonstrate marked improvements in accuracy, fidelity, and visual realism in unsupervised image restoration, showcasing the effectiveness of our approach in delivering high-quality results. The experimental results validate the superiority of our approach and offer a promising direction for future advancements in generative-based image restoration methods.

Proposed loss function

Field and Drone Captured Images
Image restoration results using StyleGAN inversion, showcasing the effectiveness of our method in recovering high-quality images.

Results : Image enhancement

Image enhancement
Sementic segmentation
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Citations(BibTeX)

    @inproceedings{ali2025investigating,
    title={Investigating Robustness of Unsupervised Stylegan Image Restoration},
    author={Ali, Akbar and Mastan, Indra Deep and Raman, Shanmuganathan},
    booktitle={2025 IEEE International Conference on Image Processing (ICIP)},
    pages={2109--2114},
    year={2025},
    organization={IEEE}}