cv2与cv的等效属性

Question

我遇到过这个用于人脸检测和图像裁剪的link。我想使用这个脚本，但我有cv2安装，只导入cv2作品，但没有导入简历。

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)