cv2相当于cv的属性

Question

我碰到过这个link用于人脸检测和图像裁剪。我想使用这个脚本，但我有cv2安装，只导入cv2工程，但不导入cv。

如何将以下函数中的cv函数转换为cv2函数？

def faces_from_pil_image(pil_image): 
    "Return a list of (x,y,h,w) tuples for faces detected in the PIL image" 
    storage = cv.CreateMemStorage(0) 
    facial_features = cv.Load('haarcascade_frontalface_alt.xml', storage=storage) 
    cv_im = cv.CreateImageHeader(pil_image.size, cv.IPL_DEPTH_8U, 3) 
    cv.SetData(cv_im, pil_image.tostring()) 
    faces = cv.HaarDetectObjects(cv_im, facial_features, storage) 
    # faces includes a `neighbors` field that we aren't going to use here 
    return [f[0] for f in faces] 

Answer 1

要么使用

import cv2 

storage = cv2.cv.CreateMemStorage(0) 

或

from cv2 import * 

storage = cv.CreateMemStorage(0)