Muhammad Allayear S, Fakrul Abedin Bhuiyan M, Mohtashim Alam M, Rayhan Kabir S, Tahsir Ahmed Munna M, Samaun Hasan M. Human face detection in excessive dark image by using contrast stretching, histogram equalization and adaptive equalization. IJET [Internet]. 2018 Dec. 17 [cited 2024 Nov. 21];7(4):3990-4. Available from: https://sciencepubco.com/index.php/ijet/article/view/13713