MediaPipeTasksVision Framework Reference

MPPImageClassifierOptions

@interface MPPImageClassifierOptions : MPPTaskOptions <NSCopying>

Options for setting up a ImageClassifier.

• runningMode

  Running mode of the image classifier task. Defaults to .image. ImageClassifier can be created with one of the following running modes:

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

  Declaration

  Objective-C

  @property (nonatomic) MPPRunningMode runningMode;

• imageClassifierLiveStreamDelegate

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

  Declaration

  Objective-C

  @property (nonatomic, weak, nullable) id<MPPImageClassifierLiveStreamDelegate> imageClassifierLiveStreamDelegate;

• displayNamesLocale

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

  Declaration

  Objective-C

  @property (nonatomic, copy) NSString *_Nonnull displayNamesLocale;

• 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

  Objective-C

  @property (nonatomic) NSInteger maxResults;

• scoreThreshold

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

  Declaration

  Objective-C

  @property (nonatomic) float scoreThreshold;

• 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

  Objective-C

  @property (nonatomic, copy) NSArray<NSString *> *_Nonnull categoryAllowlist;

• 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

  Objective-C

  @property (nonatomic, copy) NSArray<NSString *> *_Nonnull categoryDenylist;