Package software.amazon.awssdk.services.rekognition.model

Class IndexFacesResponse

    • Method Detail

      • hasFaceRecords

        public final boolean hasFaceRecords()
        For responses, this returns true if the service returned a value for the FaceRecords property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified.

      • faceRecords

        public final List<FaceRecord> faceRecords()

        An array of faces detected and added to the collection. For more information, see Searching Faces in a Collection in the Amazon Rekognition Developer Guide.

        Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.

        This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the hasFaceRecords() method.

        Returns:
        An array of faces detected and added to the collection. For more information, see Searching Faces in a Collection in the Amazon Rekognition Developer Guide.

      • orientationCorrection

        public final OrientationCorrection orientationCorrection()

        If your collection is associated with a face detection model that's later than version 3.0, the value of OrientationCorrection is always null and no orientation information is returned.

        If your collection is associated with a face detection model that's version 3.0 or earlier, the following applies:

        • If the input image is in .jpeg format, it might contain exchangeable image file format (Exif) metadata that includes the image's orientation. Amazon Rekognition uses this orientation information to perform image correction - the bounding box coordinates are translated to represent object locations after the orientation information in the Exif metadata is used to correct the image orientation. Images in .png format don't contain Exif metadata. The value of OrientationCorrection is null.

        • If the image doesn't contain orientation information in its Exif metadata, Amazon Rekognition returns an estimated orientation (ROTATE_0, ROTATE_90, ROTATE_180, ROTATE_270). Amazon Rekognition doesn’t perform image correction for images. The bounding box coordinates aren't translated and represent the object locations before the image is rotated.

        Bounding box information is returned in the FaceRecords array. You can get the version of the face detection model by calling DescribeCollection.

        If the service returns an enum value that is not available in the current SDK version, orientationCorrection will return OrientationCorrection.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from orientationCorrectionAsString().

        Returns:
        If your collection is associated with a face detection model that's later than version 3.0, the value of OrientationCorrection is always null and no orientation information is returned.

        If your collection is associated with a face detection model that's version 3.0 or earlier, the following applies:

        • If the input image is in .jpeg format, it might contain exchangeable image file format (Exif) metadata that includes the image's orientation. Amazon Rekognition uses this orientation information to perform image correction - the bounding box coordinates are translated to represent object locations after the orientation information in the Exif metadata is used to correct the image orientation. Images in .png format don't contain Exif metadata. The value of OrientationCorrection is null.

        • If the image doesn't contain orientation information in its Exif metadata, Amazon Rekognition returns an estimated orientation (ROTATE_0, ROTATE_90, ROTATE_180, ROTATE_270). Amazon Rekognition doesn’t perform image correction for images. The bounding box coordinates aren't translated and represent the object locations before the image is rotated.

        Bounding box information is returned in the FaceRecords array. You can get the version of the face detection model by calling DescribeCollection.

        See Also:
        OrientationCorrection

      • orientationCorrectionAsString

        public final String orientationCorrectionAsString()

        If your collection is associated with a face detection model that's later than version 3.0, the value of OrientationCorrection is always null and no orientation information is returned.

        If your collection is associated with a face detection model that's version 3.0 or earlier, the following applies:

        • If the input image is in .jpeg format, it might contain exchangeable image file format (Exif) metadata that includes the image's orientation. Amazon Rekognition uses this orientation information to perform image correction - the bounding box coordinates are translated to represent object locations after the orientation information in the Exif metadata is used to correct the image orientation. Images in .png format don't contain Exif metadata. The value of OrientationCorrection is null.

        • If the image doesn't contain orientation information in its Exif metadata, Amazon Rekognition returns an estimated orientation (ROTATE_0, ROTATE_90, ROTATE_180, ROTATE_270). Amazon Rekognition doesn’t perform image correction for images. The bounding box coordinates aren't translated and represent the object locations before the image is rotated.

        Bounding box information is returned in the FaceRecords array. You can get the version of the face detection model by calling DescribeCollection.

        If the service returns an enum value that is not available in the current SDK version, orientationCorrection will return OrientationCorrection.UNKNOWN_TO_SDK_VERSION. The raw value returned by the service is available from orientationCorrectionAsString().

        Returns:
        If your collection is associated with a face detection model that's later than version 3.0, the value of OrientationCorrection is always null and no orientation information is returned.

        If your collection is associated with a face detection model that's version 3.0 or earlier, the following applies:

        • If the input image is in .jpeg format, it might contain exchangeable image file format (Exif) metadata that includes the image's orientation. Amazon Rekognition uses this orientation information to perform image correction - the bounding box coordinates are translated to represent object locations after the orientation information in the Exif metadata is used to correct the image orientation. Images in .png format don't contain Exif metadata. The value of OrientationCorrection is null.

        • If the image doesn't contain orientation information in its Exif metadata, Amazon Rekognition returns an estimated orientation (ROTATE_0, ROTATE_90, ROTATE_180, ROTATE_270). Amazon Rekognition doesn’t perform image correction for images. The bounding box coordinates aren't translated and represent the object locations before the image is rotated.

        Bounding box information is returned in the FaceRecords array. You can get the version of the face detection model by calling DescribeCollection.

        See Also:
        OrientationCorrection

      • faceModelVersion

        public final String faceModelVersion()

        The version number of the face detection model that's associated with the input collection ( CollectionId).

        Returns:
        The version number of the face detection model that's associated with the input collection ( CollectionId).

      • hasUnindexedFaces

        public final boolean hasUnindexedFaces()
        For responses, this returns true if the service returned a value for the UnindexedFaces property. This DOES NOT check that the value is non-empty (for which, you should check the isEmpty() method on the property). This is useful because the SDK will never return a null collection or map, but you may need to differentiate between the service returning nothing (or null) and the service returning an empty collection or map. For requests, this returns true if a value for the property was specified in the request builder, and false if a value was not specified.

      • unindexedFaces

        public final List<UnindexedFace> unindexedFaces()

        An array of faces that were detected in the image but weren't indexed. They weren't indexed because the quality filter identified them as low quality, or the MaxFaces request parameter filtered them out. To use the quality filter, you specify the QualityFilter request parameter.

        Attempts to modify the collection returned by this method will result in an UnsupportedOperationException.

        This method will never return null. If you would like to know whether the service returned this field (so that you can differentiate between null and empty), you can use the hasUnindexedFaces() method.

        Returns:
        An array of faces that were detected in the image but weren't indexed. They weren't indexed because the quality filter identified them as low quality, or the MaxFaces request parameter filtered them out. To use the quality filter, you specify the QualityFilter request parameter.

      • toString

        public final String toString()
        Returns a string representation of this object. This is useful for testing and debugging. Sensitive data will be redacted from this string using a placeholder value.
        Overrides:
        toString in class Object