protocol ObjectDetectorLiveStreamDelegate : NSObjectProtocol
This protocol defines an interface for the delegates of
ObjectDetector object to receive
results of performing asynchronous object detection on images (i.e, when
The delegate of
ObjectDetector must adopt
The methods in this protocol are optional.
This method notifies a delegate that the results of asynchronous object detection of an image submitted to the
This method is called on a private serial dispatch queue created by the
ObjectDetectorfor performing the asynchronous delegates calls.
optional func objectDetector(_ objectDetector: MPPObjectDetector, didFinishDetection result: ObjectDetectorResult?, timestampInMilliseconds: Int, error: Error?)
The object detector which performed the object detection. This is useful to test equality when there are multiple instances of
ObjectDetectorResultobject that contains a list of detections, each detection has a bounding box that is expressed in the unrotated input frame of reference coordinates system, i.e. in
[0,image_width) x [0,image_height), which are the dimensions of the underlying image data.
The timestamp (in milliseconds) which indicates when the input image was sent to the object detector.
An optional error parameter populated when there is an error in performing object detection on the input live stream image data.