FirebaseVisionImageLabeler

public class FirebaseVisionImageLabeler extends Object
implements Closeable

Used for finding FirebaseVisionImageLabels in a supplied image.

There are two types of image labeler, one runs inference on device, the other on cloud. On device image labler is created via getOnDeviceImageLabeler(FirebaseVisionOnDeviceImageLabelerOptions) or getOnDeviceImageLabeler() if you wish to use the default options. For example, the code below creates an on device image labler with default options. Cloud image labler is created via getCloudImageLabeler(FirebaseVisionCloudImageLabelerOptions), or getCloudImageLabeler() if you wish to use the default options. For example, the code below creates a cloud image labler with default options.

 getOnDeviceImageLabeler imageLabeler =
    FirebaseVision.getInstance().getOnDeviceImageLabeler();
 

or

 getOnDeviceImageLabeler imageLabeler =
    FirebaseVision.getInstance().getCloudImageLabeler();
 

To perform label 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 Bitmap.

      FirebaseVisionImage image = FirebaseVisionImage.fromBitmap(bitmap);

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

 Task<List<FirebaseVisionImageLabel>> task = imageLabeler.processImage(image);
 task.addOnSuccessListener(...).addOnFailureListener(...);
 

Nested Class Summary

@interface

FirebaseVisionImageLabeler.ImageLabelerType

Image Labeler types.

Constant Summary

int	CLOUD	Indicates that the labeler is using a cloud model, meaning that the model inference occurs in the cloud.
int	ON_DEVICE	Indicates that the labeler is using an on-device base model.
int	ON_DEVICE_AUTOML	Indicates that the labeler is using an on-device AutoML model.

Public Method Summary

void	close()
int	getImageLabelerType() Gets image labeler type.
Task<List<FirebaseVisionImageLabel>>	processImage(FirebaseVisionImage image) Detects image labels 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()

Constants

public static final int CLOUD

Indicates that the labeler is using a cloud model, meaning that the model inference occurs in the cloud.

Constant Value: 2

public static final int ON_DEVICE

Indicates that the labeler is using an on-device base model.

Constant Value: 1

public static final int ON_DEVICE_AUTOML

Indicates that the labeler is using an on-device AutoML model.

Constant Value: 3

Public Methods

public void close ()

Throws

IOException

public int getImageLabelerType ()

Gets image labeler type.

See Also

• FirebaseVisionImageLabeler.ImageLabelerType

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

Detects image labels from supplied image.

For best efficiency, create a FirebaseVisionImage object from fromBitmap(android.graphics.Bitmap). All other FirebaseVisionImage factory methods will work as well, but possibly slightly slower.

Returns

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