peopledetect.py sample added (TODO: use builtin svm data instead of p…

…eople_hog.txt)

some old cv api use cleaning

samples/python2/distrans.py

@@ -1,5 +1,6 @@
 import numpy as np
 import cv2
+import cv2.cv as cv
 from common import make_cmap
 
 help_message = '''USAGE: distrans.py [<image>]

samples/python2/facedetect.py

@@ -37,7 +37,7 @@ def draw_rects(img, rects, color):
 
     while True:
         ret, img = cam.read()
-        gray = cv2.cvtColor(img, cv.CV_BGR2GRAY)
+        gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
         gray = cv2.equalizeHist(gray)
 
         t = clock()

samples/python2/lk_track.py

@@ -1,6 +1,5 @@
 import numpy as np
 import cv2
-import cv2.cv as cv
 import video
 from common import anorm2, draw_str
 from time import clock