public static void Example()
{
String collectionId = "MyCollection";
String faceId = "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx";
AmazonRekognitionClient rekognitionClient = new AmazonRekognitionClient();
// Search collection for faces matching the face id.
SearchFacesRequest searchFacesRequest = new SearchFacesRequest()
{
CollectionId = collectionId,
FaceId = faceId,
FaceMatchThreshold = 70F,
MaxFaces = 2
};
SearchFacesResponse searchFacesResponse = rekognitionClient.SearchFaces(searchFacesRequest);
Console.WriteLine("Face matching faceId " + faceId);
Console.WriteLine("Matche(s): ");
foreach (FaceMatch face in searchFacesResponse.FaceMatches)
{
Console.WriteLine("FaceId: " + face.Face.FaceId + ", Similarity: " + face.Similarity);
}
}
public List <FaceRecord> Recognize(string collectionId, Amazon.Rekognition.Model.Image image)
{
//1- Detect faces in the input image and adds them to the specified collection.
AmazonRekognitionClient rekognitionClient = AmazonClient.GetInstance();
IndexFacesRequest indexFacesRequest = new IndexFacesRequest()
{
Image = image,
CollectionId = collectionId,
DetectionAttributes = new List <String>()
{
"DEFAULT"
}
};
IndexFacesResponse indexFacesResponse = rekognitionClient.IndexFaces(indexFacesRequest);
//2- Search all detected faces in the collection
SearchFacesResponse searchFacesResponse = null;
List <FaceRecord> matchedFaces = new List <FaceRecord>();
if (null != indexFacesResponse && null != indexFacesResponse.FaceRecords && 0 != indexFacesResponse.FaceRecords.Count)
{
foreach (FaceRecord face in indexFacesResponse.FaceRecords)
{
searchFacesResponse = rekognitionClient.SearchFaces(new SearchFacesRequest
{
CollectionId = collectionId,
FaceId = face.Face.FaceId,
FaceMatchThreshold = 70F,
MaxFaces = 2
});
if (searchFacesResponse.FaceMatches != null && searchFacesResponse.FaceMatches.Count != 0)
{
matchedFaces.Add(face);
}
}
//Remove newly added faces to the collection
_collectionService.RemoveFacesFromCollection(collectionId, indexFacesResponse.FaceRecords.Select(x => x.Face.FaceId).ToList());
}
return(matchedFaces);
}
public void RekognitionSearchFaces()
{
#region to-delete-a-face-1482182799377
var client = new AmazonRekognitionClient();
var response = client.SearchFaces(new SearchFacesRequest
{
CollectionId = "myphotos",
FaceId = "70008e50-75e4-55d0-8e80-363fb73b3a14",
FaceMatchThreshold = 90,
MaxFaces = 10
});
List <FaceMatch> faceMatches = response.FaceMatches;
string searchedFaceId = response.SearchedFaceId;
#endregion
}
