Flutter Image Label Whole Code

main.dart

import 'dart:io';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:google_mlkit_image_labeling/google_mlkit_image_labeling.dart';
import 'package:image_picker/image_picker.dart';

void main() {
  runApp(MyHomePage());
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key}) : super(key: key);
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  late ImagePicker imagePicker;
  File? _image;
  String result = 'Results will be shown here';

  //TODO declare ImageLabeler

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    imagePicker = ImagePicker();
    //TODO initialize labeler

    final ImageLabelerOptions options =
        ImageLabelerOptions(confidenceThreshold: 0.5);
    final imageLabeler = ImageLabeler(options: options);
  }

  @override
  void dispose() {
    super.dispose();
  }

  //TODO capture image using camera
  _imgFromCamera() async {
    XFile? pickedFile = await imagePicker.pickImage(source: ImageSource.camera);
    _image = File(pickedFile!.path);
    setState(() {
      _image;
      doImageLabeling();
    });
  }

  //TODO choose image using gallery
  _imgFromGallery() async {
    XFile? pickedFile =
        await imagePicker.pickImage(source: ImageSource.gallery);
    if (pickedFile != null) {
      setState(() {
        _image = File(pickedFile.path);
        doImageLabeling();
      });
    }
  }

  //TODO image labeling code here
  doImageLabeling() async {
    final InputImage inputImage = InputImage.fromFile(_image!);
    final ImageLabelerOptions options =
        ImageLabelerOptions(confidenceThreshold: 0.5);
    final imageLabeler = ImageLabeler(options: options);
    final List<ImageLabel> labels = await imageLabeler.processImage(inputImage);
    result = "";
    for (ImageLabel label in labels) {
      final String text = label.label;
      final int index = label.index;
      final double confidence = label.confidence;

      result += text + "   " + confidence.toStringAsFixed(2) + "\n";
    }

    setState(() {
      result;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Container(
        decoration: const BoxDecoration(
          image: DecorationImage(
              image: AssetImage('images/bg.jpg'), fit: BoxFit.cover),
        ),
        child: Scaffold(
          body: SingleChildScrollView(
            child: Column(
              children: [
                const SizedBox(
                  width: 100,
                ),
                Container(
                  margin: const EdgeInsets.only(top: 100),
                  child: Stack(children: <Widget>[
                    Stack(children: <Widget>[
                      Center(
                        child: Image.asset(
                          'images/frame.png',
                          height: 510,
                          width: 500,
                        ),
                      ),
                    ]),
                    Center(
                      child: ElevatedButton(
                        style: ElevatedButton.styleFrom(
                            backgroundColor: Colors.transparent,
                            shadowColor: Colors.transparent),
                        onPressed: _imgFromGallery,
                        onLongPress: _imgFromCamera,
                        child: Container(
                          margin: const EdgeInsets.only(top: 8),
                          child: _image != null
                              ? Image.file(
                                  _image!,
                                  width: 335,
                                  height: 495,
                                  fit: BoxFit.fill,
                                )
                              : Container(
                                  width: 340,
                                  height: 330,
                                  child: const Icon(
                                    Icons.camera_alt,
                                    color: Colors.black,
                                    size: 100,
                                  ),
                                ),
                        ),
                      ),
                    ),
                  ]),
                ),
                Container(
                  margin: const EdgeInsets.only(top: 20),
                  child: Text(
                    result,
                    textAlign: TextAlign.center,
                    style: const TextStyle(
                        fontSize: 25, fontWeight: FontWeight.bold),
                  ),
                ),
              ],
            ),
          ),
          backgroundColor: Colors.transparent,
        ),
      ),
    );
  }
}