python 2.7 interpreter exits when calling opencv's SURF detect keypoints

Question

I'm trying to compute an image's keypoints and features usinf SURF. I wrote the following script for Python 2.7:

import cv2

# load image and conver to grayscale
ima=cv2.imread('image.png')
ima2 = cv2.cvtColor(ima, cv2.COLOR_BGR2GRAY)

# create object to extract keypoints
surf_detector=cv2.FeatureDetector_create("SURF")

# extract those keypoints
keypoints = surf_detector.detect(ima2)

Reaching the last line of the script python exits without warning nor error message. ¿Any clues of what might be happening and how to fix this?

Answer 1

按照（ http://danwin.com/2014/12/compile-opencv-2-4-10-ubuntu-14-04-14-）上的说明从头开始重新安装OpenCV之后，问题显然“已修复”。 10 /