python+opencv之视频人脸识别

python+opencv之视频人脸识别
2010年06月30日
  import sys
  from CVtypes import cv
  def detect(image):
  image_size = cv.GetSize(image)
  # create grayscale version
  grayscale = cv.CreateImage(image_size, 8, 1)
  cv.CvtColor(image, grayscale, cv.BGR2GRAY)
  # create storage
  storage = cv.CreateMemStorage(0)
  cv.ClearMemStorage(storage)
  # equalize histogram
  cv.EqualizeHist(grayscale, grayscale)
  # detect objects
  cascade = cv.LoadHaarClassifierCascade('haarcascade_frontalface_alt.xml', cv.Size(1,1))
  faces = cv.HaarDetectObjects(grayscale, cascade, storage, 1.2, 2, cv.HAAR_DO_CANNY_PRUNING, cv.Size(350, 350))
  print faces
  if faces:
  print 'face detected!'
  for i in faces:
  cv.Rectangle(image, cv.Point( int(i.x), int(i.y)),
  cv.Point(int(i.x + i.width), int(i.y + i.height)),
  cv.RGB(0, 255, 0)

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