Title
WESPE: Weakly Supervised Photo Enhancer for Digital Cameras
Abstract
Low-end and compact mobile cameras demonstrate limited photo quality mainly due to space, hardware and budget constraints. In this work, we propose a deep learning solution that translates photos taken by cameras with limited capabilities into DSLR-quality photos automatically. We tackle this problem by introducing a weakly supervised photo enhancer (WESPE) - a novel image-to-image Generative Adversarial Network-based architecture. The proposed model is trained by under weak supervision: unlike previous works, there is no need for strong supervision in the form of a large annotated dataset of aligned original/enhanced photo pairs. The sole requirement is two distinct datasets: one from the source camera, and one composed of arbitrary high-quality images that can be generally crawled from the Internet - the visual content they exhibit may be unrelated. In this work, we emphasize on extensive evaluation of obtained results. Besides standard objective metrics and subjective user study, we train a virtual rater in the form of a separate CNN that mimics human raters on Flickr data and use this network to get reference scores for both original and enhanced photos. Our experiments on the DPED, KITTI and Cityscapes datasets as well as pictures from several generations of smartphones demonstrate that WESPE produces comparable or improved qualitative results with state-of-the-art strongly supervised methods.
Year
DOI
Venue
2018
10.1109/CVPRW.2018.00112
2018 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW)
Keywords
DocType
Volume
high-quality images,original photos,enhanced photos,WESPE,weakly supervised photo enhancer,digital cameras,compact mobile cameras,photo quality,deep learning solution,DSLR-quality photos,original/enhanced photo pairs,image-to-image generative adversarial network-based architecture,DPED dataset,KITTI dataset,Cityscapes dataset
Conference
abs/1709.01118
ISSN
ISBN
Citations 
2160-7508
978-1-5386-6101-7
11
PageRank 
References 
Authors
0.50
25
5
Name
Order
Citations
PageRank
Andrey Ignatov1306.66
Nikolay Kobyshev2172.63
Radu Timofte31880118.45
Kenneth Vanhoey4495.52
Luc Van Gool5275661819.51