Spatial Variation of the Correlated Color Temperature of Lightning Channel

• DOI: 10.48550/arxiv.1412.8031
• Publication Date: 2014-01-01
• Authors: Nobuaki Shimoji; Ryoma Aoyama
• Keywords: Lightning; Chromaticity

In present work, we propose the analysis method of lightning based on color analysis. We analyzed digital still images in which cloud-to-ground (CG) and intracloud (IC) flashes are shown. Applying some image processing techniques, extracted channels. Then, correlated temperature (CCT) channels was obtained by mapping pixels to CIE 1931 xy-chromaticity diagram. Our results indicate that CCT changes spatially. Furthermore, it suggests energy