work on facedetect sample

samples/python2/facedetect.py

@@ -0,0 +1,23 @@
+import numpy as np
+import cv2
+from video import create_capture
+
+if __name__ == '__main__':
+    import sys, getopt
+    
+    args, video_src = getopt.getopt(sys.argv[1:], '', ['cascade=', 'nested-cascade='])
+    try: video_src = video_src[0]
+    except: video_src = '0'
+    cascade_fn = args.get('--cascade', "../../data/haarcascades/haarcascade_frontalface_alt.xml")
+    nested_fn  = args.get('--nested-cascade', "../../data/haarcascades/haarcascade_eye.xml.xml")
+
+
+    cam = create_capture(video_src)
+
+    while True:
+        ret, img = cam.read()
+        cv2.imshow('facedetect', img)
+
+        if cv2.waitKey(5) == 27:
+            break
+