MediaPipeTasksVision Framework Reference

ObjectDetectorOptions

class ObjectDetectorOptions : TaskOptions, NSCopying

Options for setting up a ObjectDetector.

• runningMode

  Running mode of the object detector task. Defaults to .image. ObjectDetector can be created with one of the following running modes:

  1. .image: The mode for performing object detection on single image inputs.
  2. .video: The mode for performing object detection on the decoded frames of a video.
  3. .liveStream: The mode for performing object detection on a live stream of input data, such as from the camera.

  Declaration

  Swift

  var runningMode: RunningMode { get set }

• objectDetectorLiveStreamDelegate

  An object that confirms to ObjectDetectorLiveStreamDelegate protocol. This object must implement objectDetector(_:didFinishDetectionWithResult:timestampInMilliseconds:error:) to receive the results of performing asynchronous object detection on images (i.e, when runningMode = .liveStream).

  Declaration

  Swift

  weak var objectDetectorLiveStreamDelegate: ObjectDetectorLiveStreamDelegate? { get set }

• displayNamesLocale

  The locale to use for display names specified through the TFLite Model Metadata, if any. Defaults to English.

  Declaration

  Swift

  var displayNamesLocale: String { get set }

• maxResults

  The maximum number of top-scored classification results to return. If < 0, all available results will be returned. If 0, an invalid argument error is returned.

  Declaration

  Swift

  var maxResults: Int { get set }

• scoreThreshold

  Score threshold to override the one provided in the model metadata (if any). Results below this value are rejected.

  Declaration

  Swift

  var scoreThreshold: Float { get set }

• categoryAllowlist

  The allowlist of category names. If non-empty, detection results whose category name is not in this set will be filtered out. Duplicate or unknown category names are ignored. Mutually exclusive with categoryDenylist.

  Declaration

  Swift

  var categoryAllowlist: [String] { get set }

• categoryDenylist

  The denylist of category names. If non-empty, detection results whose category name is in this set will be filtered out. Duplicate or unknown category names are ignored. Mutually exclusive with categoryAllowlist.

  Declaration

  Swift

  var categoryDenylist: [String] { get set }