Recognizes barcodes (in a variety of 1D and 2D formats) in a supplied FirebaseVisionImage.

A barcode detector is created via getVisionBarcodeDetector(FirebaseVisionBarcodeDetectorOptions) or getVisionBarcodeDetector(). The default option is not recommended because it tries to detect all barcode formats, which is slow. For example, the code below creates a barcode detector for FORMAT_PDF417.

 
 FirebaseVisionBarcodeDetector barcodeDetector =
      FirebaseVision.getInstance().getVisionBarcodeDetector(
          new FirebaseVisionBarcodeDetectorOptions.Builder()
              .setBarcodeFormats(FirebaseVisionBarcode.FORMAT_PDF417)
              .build());
 

 

To perform barcode 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 Image.

 FirebaseVisionImage image =
    FirebaseVisionImage.fromMediaImage(mediaImage, ImageFormat.YUV_420_888);
 

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

 Task<List<FirebaseVisionBarcode>> task = barcodeDetector.detectInImage(image);
 task.addOnSuccessListener(...).addOnFailureListener(...);
 

Public Method Summary

void	close() Closes this FirebaseVisionBarcodeDetector and releases its model.
Task<List<FirebaseVisionBarcode>>	detectInImage(FirebaseVisionImage image) Detects barcodes from the 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()