Truncated Edge-based Color Constancy

Official implementation of the paper Truncated Edge-based Color Constancy

Simone Bianco¹, Marco Buzzelli¹

¹University of Milano-Bicocca, Italy

Abstract

In this paper we propose the truncated edge-based color constancy. It is based on, and extends, the Edge-Based Color Constancy [code] framework by introducing the use of truncated Gaussian filters. The truncation level can be controlled with the use of a dedicated parameter that is added to the other three parameters existing in the edge-based framework, namely the derivative order, the standard deviation of the Gaussian filter, and the Minkowski norm. Experimental results on two standard dataset for color constancy show that the truncated edge-based framework allows to achieve the same or higher illuminant estimation accuracy of the edge-based framework considerably reducing the number of operations.

Effect of different combinations of the standard deviation of the Gaussian filter and the truncation level

Results

Running the code

You can run the file general_cc_truncated.m in Matlab to perform illuminant estimation with the truncated edge-based color constancy. For a demo, you can run the file ColorConstancyDemo.m.

Cite

If you use the code provided in this repository please cite our original work:

@inproceedings{bianco2022truncated,
  title={Truncated Edge-based Color Constancy},
  author={Bianco, Simone and Buzzelli, Marco},
  booktitle={2022 IEEE 12th International Conference on Consumer Electronics (ICCE-Berlin)},
  year={2022},
  organization={IEEE}
}