public DetectFacesResponse DetectFaces(DetectFaceParams dfp)
{
DetectFacesResponse resp = null;
var conf = new AmazonRekognitionConfig()
{
RegionEndpoint = dfp.RegEndpoint
};
using (recClient = new AmazonRekognitionClient(awsAccessKeyId, awsSecretAccessKey, conf))
{
DetectFacesRequest detectFacesRequest = new DetectFacesRequest()
{
Image = new Image()
{
S3Object = new S3Object()
{
Name = dfp.PhotoName,
Bucket = dfp.BucketName
},
},
// Attributes can be "ALL" or "DEFAULT".
// "DEFAULT": BoundingBox, Confidence, Landmarks, Pose, and Quality.
// "ALL": See https://docs.aws.amazon.com/sdkfornet/v3/apidocs/items/Rekognition/TFaceDetail.html
Attributes = new List <String>()
{
"ALL"
}
};
try
{
resp = recClient.DetectFaces(detectFacesRequest);
if (resp == null)
{
throw new Exception("AmazonRekognitionClient DetectFaces method call return null.");
}
//bool hasAll = detectFacesRequest.Attributes.Contains("ALL");
//foreach (FaceDetail face in resp.Result.FaceDetails)
//{
// Console.WriteLine("BoundingBox: top={0} left={1} width={2} height={3}", face.BoundingBox.Left,
// face.BoundingBox.Top, face.BoundingBox.Width, face.BoundingBox.Height);
// Console.WriteLine("Confidence: {0}\nLandmarks: {1}\nPose: pitch={2} roll={3} yaw={4}\nQuality: {5}",
// face.Confidence, face.Landmarks.Count, face.Pose.Pitch,
// face.Pose.Roll, face.Pose.Yaw, face.Quality);
// if (hasAll)
// Console.WriteLine("The detected face is estimated to be between " +
// face.AgeRange.Low + " and " + face.AgeRange.High + " years old.");
//}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
}
return(resp);
}
public DetectFacesResponse Recognise(RecogniseParams recParam)
{
//1. PutObjectIntoS3
if (String.IsNullOrEmpty(recParam.PhotoName))
{
throw new Exception("AmazonRekognition Recognise method: photoName parameter must have value.");
}
var photoName = $"{recParam.PhotoName}_{DateTime.Now}";
var pop = new PutObjectParams()
{
PhotoName = photoName,
PhotoVersion = recParam.PhotoVersion,
BucketName = recParam.BucketName,
RegEndpoint = recParam.RegEndpoint,
InputStrem = recParam.InputStream,
ContentType = recParam.ContentType
};
var resp = PutObjectIntoS3(pop);
if (resp == null)
{
throw new Exception($"PutObjectIntoS3 response is null in Recognise method PhotoName: {photoName}");
}
//2. DetectFaces
var dfp = new DetectFaceParams()
{
PhotoName = photoName,
PhotoVersion = recParam.PhotoVersion,
BucketName = recParam.BucketName,
RegEndpoint = recParam.RegEndpoint
};
var detectFaceResp = DetectFaces(dfp);
if (detectFaceResp == null)
{
throw new Exception($"DetectFaces response is null in Recognise method PhotoName: {photoName}");
}
return(detectFaceResp);
}
public void DetectFacesTest()
{
//Arrange
var param = new DetectFaceParams()
{
BucketName = "nvirginiadekanybucket",
PhotoName = "steve",
PhotoVersion = String.Empty
};
AmazonRekognition service = new AmazonRekognition(awsAccessKeyId, awsSecretAccessKey);
//Act
var resp = service.DetectFaces(param);
bool hasItem = resp.FaceDetails.Any();
//Assert
Assert.AreEqual(true, hasItem);
}
