CVScanner
An OpenCV based library for Android to scan/crop ID documents or Passports.
Usage
Automatic Crop
The easiest way is to launch the DocumentScannerActivity
CVScanner.startScanner(this, isPassport, REQ_SCAN);You'll get the path of the scanned image in onActivityResult(int requestCode, int resultCode, Intent data)
if(requestCode == REQ_SCAN && resultCode == RESULT_OK){
String path = data.getStringExtra(CVScanner.RESULT_IMAGE_PATH);
}You can use the DocumentScannerFragment too
Fragment fragment = DocumentScannerFragment.instantiate(isScanningPassport);
getSupportFragmentManager().beginTransaction()
.add(R.id.container, fragment)
.commit();The host Activity should implement ImageProcessorCallback to get scanning results.
Manual Crop
The easiest way is to launch the CropImageActivity
CVScanner.startManualCropper(this, currentPhotoUri, REQ_CROP_IMAGE);You'll get the path to the scanned image in onActivityResult
if(requestCode == REQ_CROP_IMAGE && resultCode == RESULT_OK){
String path = data.getStringExtra(CVScanner.RESULT_IMAGE_PATH);
}You can use the ImageCropperFragment too
Fragment fragment = ImageCropperFragment.instantiate(imageUri);
getSupportFragmentManager().beginTransaction()
.add(R.id.container, fragment)
.commit();The host Activity should implement ImageProcessorCallback to get cropping results.