Kyung Yun, Han, and Sun Min Whang. “A Cloud Height Observing System Using High Resolution Whole Sky Image”. International Journal of Engineering and Technology 7, no. 2.12 (April 3, 2018): 321–324. Accessed May 13, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/11315.