Face detect Detect faces and draw shapes on them using OpenCV binarymillenium, Dan Dennedy Search scale The search window scale factor. For example, 120 = 1.20 = increases by 20% on each pass. Neighbors Minimum number of rectangles that determines an object. Smallest The minimum window size in pixels. Recheck How often to detect a face. In between checks, it does object motion tracking. circle,ellipse,rectangle,random Shape Stroke width 0 means fill; otherwise, draw unfilled with a stroke width of this size. Alpha Set the alpha channel of the shape area to a percentage of fully opaque. Antialias Draw with anti-aliasing?