public async Task Rekognize()
        {
            var newRegion = RegionEndpoint.GetBySystemName("us-east-1");

            using (var rekClient = new AmazonRekognitionClient(newRegion))
            {
                //Amazon.Rekognition.Model.DetectFacesRequest
                string collection_id = "test";

                CreateCollectionRequest request = new CreateCollectionRequest()
                {
                    CollectionId = collection_id
                };

                CreateCollectionResponse response = await rekClient.CreateCollectionAsync(request);

                KinesisVideoStream VidStream = new KinesisVideoStream()
                {
                    Arn = "arn:aws:kinesisvideo:us-east-1:229551089657:stream/myVideoStream/1525622803413"
                };

                StreamProcessorInput SPInput = new StreamProcessorInput()
                {
                    KinesisVideoStream = VidStream
                };
                KinesisDataStream DataStream = new KinesisDataStream()
                {
                    Arn = "arn:aws:kinesis:us-east-1:229551089657:stream/myDataStream"
                };
                StreamProcessorOutput output = new StreamProcessorOutput()
                {
                    KinesisDataStream = DataStream
                };
                FaceSearchSettings faceSearchSettings = new FaceSearchSettings()
                {
                    CollectionId       = collection_id,
                    FaceMatchThreshold = 10
                };
                StreamProcessorSettings spSettings = new StreamProcessorSettings()
                {
                    FaceSearch = faceSearchSettings
                };

                CreateStreamProcessorResponse final_resp = await rekClient.CreateStreamProcessorAsync(new CreateStreamProcessorRequest()
                {
                    Input    = SPInput,
                    RoleArn  = "arn:aws:iam::229551089657:role/RekRole2",
                    Output   = output,
                    Settings = spSettings,
                    Name     = "CrazyDemo1"
                });



                string why = final_resp.StreamProcessorArn;
            }
        }