{'FaceMatches': [], 'ResponseMetadata': {'HTTPHeaders': {'connection':
    'keep-alive', 'content-length': '195', 'content-type':
    'application/x-amz-json-1.1', 'date': 'Sat, 31 Dec 2016 23:15:56 GMT',
    'x-amzn-requestid': '13edda2d-cfaf-11e6-9999-d3abf4c2feb3'},
    'HTTPStatusCode': 200, 'RequestId':
    '13edda2d-cfaf-11e6-9999-d3abf4c2feb3', 'RetryAttempts': 0},
    'SourceImageFace': {'BoundingBox': {'Height': 0.9448398351669312,
    'Left': 0.12222222238779068, 'Top': -0.017793593928217888, 'Width': 
    0.5899999737739563}, 'Confidence': 99.99041748046875}}
An example of calling AWS Rekognition HTTP API from Python