In this work we describe a Convolutional Neural Network (CNN) to accurately predict the scene illumination. Taking image patches as input, the CNN works in the spatial domain without using hand-crafted features that are employed by most previous methods. The network consists of one convolutional layer with max pooling, one fully connected layer and three output nodes. Within the network structure, feature learning and regression are integrated into one optimization process, which leads to a more effective model for estimating scene illumination. This approach achieves state-of-the-art performance on a standard dataset of RAW images. Preliminary experiments on images with spatially varying illumination demonstrate the stability of the local illuminant estimation ability of our CNN.
@article{arxiv.1504.04548,
title = {Color Constancy Using CNNs},
author = {Simone Bianco and Claudio Cusano and Raimondo Schettini},
journal= {arXiv preprint arXiv:1504.04548},
year = {2015}
}
Comments
Accepted at DeepVision: Deep Learning in Computer Vision 2015 (CVPR 2015 workshop)