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# Face Recognition

Face Recognition identifies faces that are detected in media. Before using face recognition you must train HPE Media Server to recognize faces, by providing images of people who you want to recognize.

This section describes the parameters that you can use to configure a Face Recognition task.

Configuration Parameter | Description
--- | ---
Database | A face database to use to recognize faces in an image. HPE Media Server compares the detected faces to faces in this database.
Identifier | A comma-separated list of identifiers that specifies the faces to match against.
Input | The track that you want to analyze.
MaxRecognitionResults | The maximum number of recognition results to return per face.
NumParallel | The maximum number of video frames to analyze simultaneously.
RecognitionThreshold | The minimum confidence score required to consider a face as a match.
SyncDatabase | Specifies whether to synchronize with the training database before beginning the analysis task.
Type | The analysis engine to use. Set this parameter to `FaceRecognize`.

## Output Tracks

Output track | Type | Description | Output1This column indicates whether the information contained in the track is included by default in the output created by an output task (when you don't set the Input parameter for the output task).
--- | --- | --- | ---
`Result` | FaceRecognitionResult | Contains a record for each detected face. | Yes
`ResultWithSource` | FaceRecognitionResultAndImage | Contains the same information as the `Result` track, but each record also includes the best source frame. | No

FaceRecognitionResult

Field name | Type | Description
--- | --- | ---
id | UUIDData | A universally unique identifier to identify the face
face | FaceData | Information about the detected face
identity | IdentityData | The identity of the person who matches the detected face. If the face was not recognized, this field is empty.

FaceRecognitionResultAndImage

Field name | Type | Description
--- | --- | ---
id | UUIDData | A universally unique identifier to identify the face
face | FaceData | Information about the detected face
identity | IdentityData | The identity of the person who matches the detected face. If the face was not recognized, this field is empty.
image | ImageData | The source frame

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