using the cloud sight api for image recognition
$ python cloudSightAPI.py ImageURL
$ python cloudSightAPI.py 'http://img.taopic.com/uploads/allimg/130522/240439-1305221639269.jpg'
recognizing...
recognizing...
RESULT:
image url: http://img.taopic.com/uploads/allimg/130522/240439-1305221639269.jpg
image name: 美国国旗