The methodology suggested in this study consists mainly of the
skin color region classifier and the sliding window-based face detector as shown in Fig. 1 below, which presents the entire flow diagram
of the suggested facial detection method. In Fig. 1, Im indicates the
color image of (NXM), Sm a binary image in application of the skin
color segmentation, Sp a binary image after the morphological image
processing, and Ipost an image after the labeling and non-face candidate rejection process.