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For a given input face ID, searches for matching faces in the collection the face
belongs to. You get a face ID when you add a face to the collection using the IndexFaces
operation. The operation compares the features of the input face with faces in the
specified collection.
You can also search faces without indexing faces by using the SearchFacesByImage
operation.
The operation response returns an array of faces that match, ordered by similarity
score with the highest similarity first. More specifically, it is an array of metadata
for each face match that is found. Along with the metadata, the response also includes
a confidence
value for each face match, indicating the confidence that the
specific face matches the input face.
For an example, see Searching for a face using its face ID in the Amazon Rekognition Developer Guide.
This operation requires permissions to perform the rekognition:SearchFaces
action.
For .NET Core this operation is only available in asynchronous form. Please refer to SearchFacesAsync.
Namespace: Amazon.Rekognition
Assembly: AWSSDK.Rekognition.dll
Version: 3.x.y.z
public abstract SearchFacesResponse SearchFaces( SearchFacesRequest request )
Container for the necessary parameters to execute the SearchFaces service method.
Exception | Condition |
---|---|
AccessDeniedException | You are not authorized to perform the action. |
InternalServerErrorException | Amazon Rekognition experienced a service issue. Try your call again. |
InvalidParameterException | Input parameter violated a constraint. Validate your parameter before calling the API operation again. |
ProvisionedThroughputExceededException | The number of requests exceeded your throughput limit. If you want to increase this limit, contact Amazon Rekognition. |
ResourceNotFoundException | The resource specified in the request cannot be found. |
ThrottlingException | Amazon Rekognition is temporarily unable to process the request. Try your call again. |
This operation searches for matching faces in the collection the supplied face belongs to.
var client = new AmazonRekognitionClient(); var response = client.DeleteFaces(new DeleteFacesRequest { CollectionId = "myphotos", FaceIds = new List<string> { "ff43d742-0c13-5d16-a3e8-03d3f58e980b" } }); List<string> deletedFaces = response.DeletedFaces;
.NET Framework:
Supported in: 4.5, 4.0, 3.5