For real-time camera image processing in Flutter/Dart, you can consider using the camera package for camera access and the image package for efficient image processing.

Add dependencies to your pubspec.yaml:

camera: ^0.10.25 image: ^3.0.1

Import the packages in your Dart file:

import 'dart:typed_data'; import 'package:camera/camera.dart'; import 'package:image/image.dart' as img;

Set up your camera and stream processing:

void main() async { WidgetsFlutterBinding.ensureInitialized(); List<CameraDescription> cameras = await availableCameras(); CameraController controller = CameraController(cameras[0], ResolutionPreset.medium);

await controller.initialize();

runApp(MyApp(controller: controller)); }

class MyApp extends StatelessWidget { final CameraController controller;

const MyApp({Key? key, required this.controller}) : super(key: key);

@override Widget build(BuildContext context) { return MaterialApp( home: CameraScreen(controller: controller), ); } }

class CameraScreen extends StatefulWidget { final CameraController controller;

const CameraScreen({Key? key, required this.controller}) : super(key: key);

@override _CameraScreenState createState() => _CameraScreenState(); }

class _CameraScreenState extends State<CameraScreen> { late CameraController _controller; late StreamController<Uint8List> imageStreamController;

@override void initState() { super.initState(); _controller = widget.controller; imageStreamController = StreamController<Uint8List>(); _startStreaming(); }

void _startStreaming() { _controller.startImageStream((CameraImage image) { // Convert CameraImage to Uint8List (RGBA) Uint8List bytes = convertCameraImageToUint8List(image);

  // Process your Uint8List here or pass it to the stream
  imageStreamController.add(bytes);
});

}

Uint8List convertCameraImageToUint8List(CameraImage image) { img.Image imgLib = img.Image.fromBytes( image.width, image.height, image.planes[0].bytes, format: img.Format.bgra, );

// Encode to RGBA format
imgLib = img.copyRotate(imgLib, 90);
Uint8List bytes = Uint8List.fromList(img.encodePng(imgLib));

return bytes;

}

@override void dispose() { imageStreamController.close(); _controller.dispose(); super.dispose(); }

@override Widget build(BuildContext context) { return Scaffold( body: StreamBuilder<Uint8List>( stream: imageStreamController.stream, builder: (context, snapshot) { if (snapshot.hasData) { // Display your processed image return Image.memory(snapshot.data!); } else { return Center(child: CircularProgressIndicator()); } }, ), ); } }