java.lang.Object | ||
↳ | com.google.android.gms.vision.Detector<com.google.android.gms.vision.text.TextBlock> | |
↳ | com.google.android.gms.vision.text.TextRecognizer |
Finds and recognizes text in a supplied Frame
.
Build new TextRecognizer instances using TextRecognizer.Builder
.
Recognition results are returned by detect(Frame)
. The OCR algorithm tries to
infer the text layout and organizes each paragraph into TextBlock
instances. If any text
is detected, at least one TextBlock
instance will be returned.
Adding the ocr functionality dependency to your project's AndroidManifest.xml will indicate to the installer that it should download the dependency on application install.
Nested Classes | |||||||||||
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TextRecognizer.Builder | TextRecognizer Builder. |
Public Methods | |||||||||||
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Detects and recognizes text in a image.
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Indicates whether the detector has all of the required dependencies available locally in order
to do detection.
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Shuts down the detector, releasing any underlying resources.
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Inherited Methods | |||||||||||
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Indicates whether the detector has all of the required dependencies available locally in order to do detection.
When an app is first installed, it may be necessary to download required files. If this returns false, those files are not yet available. Usually this download is taken care of at application install time, but this is not guaranteed. In some cases the download may have been delayed.
If your code has added a processor, an indication of the detector operational state is also
indicated with the detectorIsOperational()
method. You can
check this in your app as it processes detection results, and can convey this state to the user
if appropriate.
Returns | |
---|---|
boolean |
true if the detector is operational, false if the dependency download is in progress |
Shuts down the detector, releasing any underlying resources.