Represents an image object that can be used for both on-device and cloud API detectors.
Public Method Summary
| static FirebaseVisionImage |
fromBitmap(Bitmap
bitmap)
Creates a
FirebaseVisionImage from a Bitmap,
where the object in the image should be already up-right and no rotation is
needed.
|
| static FirebaseVisionImage |
fromByteArray(byte[] byteArray,
FirebaseVisionImageMetadata metadata)
Creates a
FirebaseVisionImage from a byte array, e.g.
|
| static FirebaseVisionImage |
fromByteBuffer(ByteBuffer
byteBuffer,
FirebaseVisionImageMetadata metadata)
Creates a
FirebaseVisionImage from a ByteBuffer.
|
| static FirebaseVisionImage |
fromFilePath(Context
context, Uri
imageUri)
Creates a
FirebaseVisionImage from a local image file Uri.
|
| static FirebaseVisionImage | |
| Bitmap |
getBitmap()
Returns its bitmap representation.
|
Inherited Method Summary
Public Methods
public static FirebaseVisionImage fromBitmap (Bitmap bitmap)
Creates a
FirebaseVisionImage from a Bitmap,
where the object in the image should be already up-right and no rotation is needed.
public static FirebaseVisionImage fromByteArray (byte[] byteArray, FirebaseVisionImageMetadata metadata)
Creates a
FirebaseVisionImage from a byte array, e.g. what you get from Camera
callback.
public static FirebaseVisionImage fromByteBuffer (ByteBuffer byteBuffer, FirebaseVisionImageMetadata metadata)
Creates a
FirebaseVisionImage from a ByteBuffer.
We assume the entire buffer from position zero to its limit is all image data.
public static FirebaseVisionImage fromFilePath (Context context, Uri imageUri)
Creates a
FirebaseVisionImage from a local image file Uri.
Throws
| IOException | if the image could not be retrieved from the specified imageUri. This could happen even if the Uri came from content chooser, e.g. some users might have content providers for remote resources. |
|---|
public static FirebaseVisionImage fromMediaImage (Image image, int rotation)
Creates a
FirebaseVisionImage from a Image object,
e.g. what you obtained from android.hardware.camera2
API.
Note that we only support JPEG / YUV_420_888 formats at this moment. If you are using cloud vision detectors, JPEG format is recommended; if you are using on-device detectors, YUV_420_888 will be more efficient.
After you get back a
FirebaseVisionImage, it's safe to close the input Image.
Parameters
| image | |
|---|---|
| rotation | The camera rotation, e.g. ROTATION_90 for back camera landscape
mode. See also
FirebaseVisionImageMetadata.Rotation. |
public Bitmap getBitmap ()
Returns its bitmap representation.
The image will be rotated to up-right if it's created with rotation info via
setRotation(int).