buildBlackAndWhiteTiff method
Implementation
@override
Future<String?> buildBlackAndWhiteTiff(String imagePath) =>
_sdkCall('OCR_BW_FAILED', () async {
final sdk = await _readySdk();
final input = await _fetchBytes(imagePath);
final response = await sdk.ocrbw(input).toDart;
return _objectUrl(_dataOrThrow(response), _DocumentKind.tiff.mimeType);
});