Exploring cross-cultural and gender differences in facial expressions: a skin tone analysis using RGB Values. - Sajid Ali; Muhammad Sharoze Khan; Asad Khan; Muhammad Abdullah Sarwar; Syam Melethil Sethumadhavan; Muhammad Aamir 002; Yazeed Yasin Ghadi; Hend Khalid Alkahtani; Samih Mohemmed Mostafa (J. Cloud Comput., 2023)