M.Janani, A.Jayasree, P.Kalai, and Mr.R.Carol Praveen. “FACE RECOGNITION USING IMAGE PROCESSING WITH RASPBERRY PI”. International Journal of Intellectual Advancements and Research in Engineering Computations, vol. 7, no. 1, July 2021, pp. 57-64, https://ijiarec.com/ijiarec/article/view/175.