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OCR scan library for Flutter. It can scan text form zones in preview.

OCR Scan #

Pub Version

OCR scan library for Flutter. It can scan text, barcode, qr,... from zones in preview or file.

ScanPreview ScanFile
Demo Demo

Requirements #

Since thus package uses ML Kit check requirements before running the package in project.

How to use #

  1. Add ocr_scan to your pubspec.yaml
  2. Import the desired package or class.
import 'package:ocr_scan/ocr_scan.dart';

Widget buildPreview(BuildContext context) {
  final ScaffoldMessengerState messenger = ScaffoldMessenger.of(context);

  return ScanPreview(
    scanProcess: process,
    scanDuration: const Duration(milliseconds: 2000 * 3),
    textRecognizerConfig: TextRecognizerConfig(
      zonePainter: ZonePainter(
        elements: [
          const Zone(
            Rect.fromLTWH(40, 100, 1200, 100),
            text: TextSpan(
              text: 'Zone: TextRecognizer',
              style: TextStyle(backgroundColor: Colors.red),
            ),
            paintingColor: Colors.red,
          ),
        ],
      ),
      onTextLine: ((int, List<TextLine>) value) {
        messenger.showSnackBar(SnackBar(
          duration: const Duration(milliseconds: 2000),
          content: Text(
            value.$2.fold(
              'TextRecognizer - Length ${value.$2.length}:',
              (String pre, TextLine e) => '$pre\n${e.text}',
            ),
          ),
        ));
      },
    ),
    barcodeScannerConfig: BarcodeScannerConfig(
      zonePainter: ZonePainter(
        rotation: InputImageRotation.rotation90deg,
        elements: [
          Zone(
            Rect.fromCenter(
              center: const Size(720, 1280).center(Offset.zero),
              width: 400,
              height: 400,
            ),
            text: const TextSpan(
              text: 'Zone: BarcodeScanner',
              style: TextStyle(backgroundColor: Colors.green),
            ),
            paintingColor: Colors.green,
          ),
        ],
      ),
      onBarcode: ((int, List<Barcode>) value) {
        messenger.showSnackBar(SnackBar(
          duration: const Duration(milliseconds: 2000),
          content: Text(
            value.$2.fold(
              'BarcodeScanner - Length ${value.$2.length}:',
              (String pre, Barcode e) => '$pre\n${e.displayValue}',
            ),
          ),
        ));
      },
    ),
  );
}

Contributing #

Contributions are always welcome!

Please check out our contribution guidelines for more details.

License #

ORC Scan is licensed under the MIT License.

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OCR scan library for Flutter. It can scan text form zones in preview.

Repository (GitHub)
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Documentation

API reference

License

MIT (license)

Dependencies

camera, flutter, google_mlkit_barcode_scanning, google_mlkit_commons, google_mlkit_text_recognition

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Packages that depend on ocr_scan