Computational Multispectral Flash Sample Data
Abstract/Contents
- Abstract
Illumination plays an important role in the image capture process. Too little or too much energy in particular wavelengths can impact the scene appearance in a way that is difficult to manage by color constancy post processing methods. We use an adjustable multispectral flash to modify the spectral illumination of a scene. The flash is composed of a small number of narrowband lights, and the imaging system takes a sequence of images of the scene under each of those lights. Pixel data is used to estimate the spectral power distribution of the ambient light, and to adjust the flash spectrum either to match or to complement the ambient illuminant. The optimized flash spectrum can be used in subsequent captures, or a synthetic image can be computationally rendered from the available data. Under extreme illumination conditions images captured with the matching flash have no color cast, and the complementary flash produces more balanced colors. The proposed system also improves the quality of images captured in underwater environments.
This repository contains sample data and results to be used with the released Matlab implementation of the algorithms.
Description
Type of resource | software, multimedia |
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Date created | [ca. January 2016 - May 2017] |
Creators/Contributors
Author | Blasinski, Henryk |
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Contributing author | Farrell, Joyce |
Subjects
Subject | flash |
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Subject | computational photography |
Subject | light spectrum |
Genre | Dataset |
Bibliographic information
Related Publication | Blasinski, H. and Farrell, J. "Computational Multispectral Flash," IEEE International Conference on Computational Photography (ICCP), May 2017 https://dx.doi.org/10.1109/ICCPHOT.2017.7951479 |
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Related item | |
Location | https://purl.stanford.edu/pd601pk8606 |
Access conditions
- Use and reproduction
- User agrees that, where applicable, content will not be used to identify or to otherwise infringe the privacy or confidentiality rights of individuals. Content distributed via the Stanford Digital Repository may be subject to additional license and use restrictions applied by the depositor.
- License
- This work is licensed under an Open Data Commons Attribution License v1.0.
Collection
Contact information
- Contact
- hblasins@stanford.edu
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