public interface FrameCallback
extends android.os.Parcelable
FrameGrabberRecognizer
when it receives new frame for processing.Modifier and Type | Method and Description |
---|---|
void |
onFrameAvailable(Image cameraFrame,
boolean isFocused,
double frameQuality)
Called when
FrameGrabberRecognizer received new frame for processing. |
void onFrameAvailable(@Nullable Image cameraFrame, boolean isFocused, double frameQuality)
FrameGrabberRecognizer
received new frame for processing.
Note that all buffers associated with image are available only during life of this method.
As soon as this method exits, there is no guarantee that buffers will be valid. If you need
to store image for later processing, showing or saving, make sure you create a copy of it
with Image.clone()
.cameraFrame
- The Image
containing frame that will be processed.isFocused
- Information whether or not given frame is considered to be in focus. This
information is calculated on the basis of frame quality estimation algorithm
combined with information about actual frame that was provided by camera device.frameQuality
- A number indicating calculated quality of given frame. This number is
non-negative, however it's maximum is not defined - the higher the number
is, the better the observed quality of frame is.