FirebaseVisionObjectDetector

public class FirebaseVisionObjectDetector extends Object
implements Closeable Closeable

This class is deprecated.
The standalone ML Kit SDK replaces this API. For more information, refer to the migration guide.

Detector for finding FirebaseVisionObjects in a supplied image.

A object detector is created via getOnDeviceObjectDetector(FirebaseVisionObjectDetectorOptions) or getOnDeviceObjectDetector(), if you wish to use the default options. For example, the code below creates an object detector with default options.

 FirebaseVisionObjectDetector objectDetector =
    FirebaseVision.getInstance().getOnDeviceObjectDetector();
 

To perform object detection in an image, you first need to create an instance of FirebaseVisionImage from a Bitmap, ByteBuffer, etc. See FirebaseVisionImage documentation for more details. For example, the code below creates a FirebaseVisionImage from a ByteBuffer.

 FirebaseVisionImage image
    = FirebaseVisionImage.fromByteBuffer(byteBuffer, imageMetadata);
 

Then the code below can detect objects in the supplied FirebaseVisionImage.

 Task<List<FirebaseVisionObject>> task = objectDetector.processImage(image);
 task.addOnSuccessListener(...).addOnFailureListener(...);
 

Public Method Summary

void	close()
Task<List<FirebaseVisionObject>>	processImage(FirebaseVisionImage image) Detects objects from supplied image.

Inherited Method Summary

From class java.lang.Object

Object	clone()
boolean	equals(Object arg0)
void	finalize()
final Class<?>	getClass()
int	hashCode()
final void	notify()
final void	notifyAll()
String	toString()
final void	wait(long arg0, int arg1)
final void	wait(long arg0)
final void	wait()

From interface java.io.Closeable

abstract void

close()

From interface java.lang.AutoCloseable

abstract void

close()

Public Methods

public void close ()

Throws

IOException

public Task<List<FirebaseVisionObject>> processImage (FirebaseVisionImage image)

Detects objects from supplied image.

For best efficiency, create a FirebaseVisionImage object using following way:

• fromByteBuffer(ByteBuffer, FirebaseVisionImageMetadata) if you need to pre-process the image. E.g. allocate a direct ByteBuffer and write processed pixels into the ByteBuffer.

All other FirebaseVisionImage factory methods will work as well, but possibly slightly slower.

Note that the width and height of the provided image cannot be less than 32.

Returns

• A Task that asynchronously returns a List of detected FirebaseVisionObjects.