Fig. 1From: Evaluating the potential application of palmprint creases density for sex determination: an exploratory studya Position of right palm for palmprint sampling. b 2 cm × 2 cm square region of interest (ROI) at hypothenar was drawn, and the beginning of distal transverse creases was used as a starting point (marked as fix point 1). c 3 pixels and more creases were drawn based on direction; yellow colour was used to trace creases that shift to the right and pink colour for creases that shift to the leftBack to article page