flutter_ocr_sdk 2.0.1

A wrapper for Dynamsoft Capture Vision SDK, capable of recognizing MRZ (Machine Readable Zone) and VIN (Vehicle Identification Number).

Flutter MRZ/VIN SDK

A Flutter wrapper for the Dynamsoft Capture Vision SDK, featuring built-in MRZ (Machine Readable Zone) and VIN (Vehicle Identification Number) detection models.

Demo Video

• Android

  https://github.com/user-attachments/assets/7e84b0c8-c492-4262-97c7-851651d9327e

• iOS

  https://github.com/user-attachments/assets/56ddd2a7-7ef9-4376-a090-2b562801c660

Supported Platforms

• ✅ Windows

• ✅ Linux

• ✅ Android

• ✅ iOS

  Add camera and microphone usage descriptions to ios/Runner/Info.plist:

  <key>NSCameraUsageDescription</key>
  <string>Can I use the camera please?</string>
  <key>NSMicrophoneUsageDescription</key>
  <string>Can I use the mic please?</string>
  

• ✅ Web

  In index.html, include:

  <script src="https://cdn.jsdelivr.net/npm/dynamsoft-capture-vision-bundle@2.6.1000/dist/dcv.bundle.min.js"></script>
  

Prerequisites

• A valid Dynamsoft Capture Vision license key

Getting Started

1. Set the license key in example/lib/global.dart:

   Future<int> initSDK() async {
     int? ret = await detector.init(
         "LICENSE-KEY");
     ...
   }
   

2. Run the example project on your desired platform:

   cd example
   flutter run -d chrome    # Run on Web
   flutter run -d linux     # Run on Linux
   flutter run -d windows   # Run on Windows
   flutter run              # Run on default connected device (e.g., Android)
   

API Reference

Method	Description	Parameters	Return Type
Future<int?> init(String key)	Initializes the OCR SDK with a license key.	key: License string	Future<int?>
Future<List<List<OcrLine>>?> recognizeBuffer(Uint8List bytes, int width, int height, int stride, int format, int rotation)	Performs OCR on a raw image buffer.	bytes: RGBA image buffer   width, height: Image dimensions stride: Row bytes format: Pixel format index rotation: 0/90/180/270	Future<List<List<OcrLine>>?>
Future<List<List<OcrLine>>?> recognizeFile(String filename)	Performs OCR on an image file.	filename: Path to the image file	Future<List<List<OcrLine>>?>
Future<int?> loadModel({ModelType modelType = ModelType.mrz})	Loads the OCR model by type (mrz or vin).	modelType: Optional, defaults to ModelType.mrz	Future<int?>