use openCV API to find face test on openCV 2.4.3

find_face.py

#!/usr/bin/env python

load_model = "haarcascade_frontalface_default.xml"

import sys
image_path = sys.argv[1]

# cv api 1
import cv
img = cv.LoadImage(image_path)
haar = cv.Load(load_model)
s = cv.CreateMemStorage()
d = cv.HaarDetectObjects(img, haar, s, 1.2, 2, cv.CV_HAAR_DO_CANNY_PRUNING, (100,100))

if d:
    for face in d:
        print face

# cv api 2
import cv2
img = cv2.imread(image_path)
haar = cv2.CascadeClassifier(load_model)
d2 = haar.detectMultiScale(img, 1.2, 2, cv.CV_HAAR_DO_CANNY_PRUNING)

if d2.any():
    for face in d2:
        print face