https://github.com/azizbekeshpolatov/face_detection_example
google_mlkit_face_detection package-dan foydalangan xolda userning yuz qiyofasini aniqlaydigan kichik test project.
https://github.com/azizbekeshpolatov/face_detection_example
camera dart flutter google-ml-kit permission-handler
Last synced: 2 months ago
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google_mlkit_face_detection package-dan foydalangan xolda userning yuz qiyofasini aniqlaydigan kichik test project.
- Host: GitHub
- URL: https://github.com/azizbekeshpolatov/face_detection_example
- Owner: AzizbekEshpolatov
- Created: 2025-03-24T18:22:54.000Z (2 months ago)
- Default Branch: main
- Last Pushed: 2025-03-24T18:29:19.000Z (2 months ago)
- Last Synced: 2025-03-24T19:34:32.685Z (2 months ago)
- Topics: camera, dart, flutter, google-ml-kit, permission-handler
- Homepage:
- Size: 16.6 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Face Detection Example
Bu loyiha Flutter va Google ML Kit yordamida yuzni aniqlash uchun ishlatiladi. Ilova kameradan foydalangan holda foydalanuvchi yuzining turli holatlarini aniqlaydi va ko‘rsatmalar beradi.
---
## Dependencies
Loyiha quyidagi paketlardan foydalanadi:
```yaml
dependencies:
flutter:
sdk: flutter
google_mlkit_face_detection: ^0.9.1
camera: ^0.10.5+9
permission_handler: ^11.3.0
```
## 🌍 Tilga Mos Tarjimalar (Translations)
Loyiha uch tilda qo'llab-quvvatlaydi: **Uzbek, English, Russian**
## Code
```dart
import 'dart:math';
import 'package:car_land/core/common/words.dart';
import 'package:car_land/core/extension/message_extension.dart';
import 'package:car_land/core/extension/size_extension.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:camera/camera.dart';
import 'package:google_mlkit_face_detection/google_mlkit_face_detection.dart';
import 'package:permission_handler/permission_handler.dart';
class FaceDetectionPage extends StatefulWidget {
const FaceDetectionPage({super.key});
@override
State createState() => _FaceDetectionPageState();
}
class _FaceDetectionPageState extends State {
CameraController? _cameraController;
FaceDetector? _faceDetector;
bool _isDetecting = false;
List _faces = [];
String _currentTask = 'take_action';
String _displayMessage = Words.faceNotDetected.tr();
int _countdown = 0;
bool _isCountingDown = false;
final List _tasks = [
"look_left",
"look_right",
"look_up",
"look_down",
"smile",
"close_eyes"
];
final Random _random = Random();
bool _isCameraInitialized = false;
@override
void initState() {
super.initState();
_initializeFaceDetector();
_requestCameraPermission();
}
void _initializeFaceDetector() {
final options = FaceDetectorOptions(
enableContours: true,
enableLandmarks: true,
enableClassification: true,
performanceMode: FaceDetectorMode.fast,
);
_faceDetector = FaceDetector(options: options);
}
Future _requestCameraPermission() async {
var status = await Permission.camera.status;
if (!status.isGranted) status = await Permission.camera.request();
if (status.isGranted) {
_initializeCamera();
} else if (status.isDenied) {
showErrors(Words.cameraPermissionDenied.tr());
} else if (status.isPermanentlyDenied) {
showErrors(Words.cameraPermissionPermanentlyDenied.tr());
await openAppSettings();
}
}
Future _initializeCamera() async {
try {
final cameras = await availableCameras();
if (cameras.isEmpty) {
showErrors(Words.noCameraFound.tr());
return;
}
final frontCamera = cameras.firstWhere(
(camera) => camera.lensDirection == CameraLensDirection.front,
orElse: () => cameras.first,
);
_cameraController = CameraController(
frontCamera,
ResolutionPreset.high,
enableAudio: false,
imageFormatGroup: defaultTargetPlatform == TargetPlatform.android
? ImageFormatGroup.nv21
: ImageFormatGroup.jpeg,
);
await _cameraController!.initialize();
if (mounted) {
setState(() => _isCameraInitialized = true);
}
_cameraController?.startImageStream(_processCameraImage);
} catch (e) {
showErrors("${Words.cameraInitError.tr()}:${e.toString()}");
}
}
Future _processCameraImage(CameraImage image) async {
if (_isDetecting || _isCountingDown) return;
_isDetecting = true;
try {
final WriteBuffer allBytes = WriteBuffer();
for (final Plane plane in image.planes) {
allBytes.putUint8List(plane.bytes);
}
final Uint8List bytes = allBytes.done().buffer.asUint8List();
final Size imageSize = Size(
image.width.toDouble(),
image.height.toDouble(),
);
final InputImageRotation imageRotation = _getImageRotation();
final bytesPerRow = image.planes[0].bytesPerRow;
if (bytesPerRow == 0) {
debugPrint("Xatolik: bytesPerRow 0 ga teng. Buni tuzatish lozim.");
_isDetecting = false;
return;
}
final inputImageData = InputImageMetadata(
size: imageSize,
rotation: imageRotation,
format: defaultTargetPlatform == TargetPlatform.android
? InputImageFormat.nv21
: InputImageFormat.bgra8888,
bytesPerRow: bytesPerRow,
);
final inputImage = InputImage.fromBytes(
bytes: bytes,
metadata: inputImageData,
);
final List faces = await _faceDetector!.processImage(inputImage);
if (faces.isNotEmpty) {
_checkTaskCompletion(faces.first, inputImage.filePath);
setState(() {
_faces = faces;
if (_currentTask != 'hold_still') {
_displayMessage = _currentTask == 'take_action'
? Words.takeAction.tr()
: _currentTask == 'done'
? Words.done.tr()
: _currentTask == 'look_left'
? Words.lookLeft.tr()
: _currentTask == 'look_right'
? Words.lookRight.tr()
: _currentTask == 'look_up'
? Words.lookUp.tr()
: _currentTask == 'look_down'
? Words.lookDown.tr()
: _currentTask == 'smile'
? Words.smile.tr()
: Words.closeEyes.tr();
}
});
} else {
setState(() {
_faces = [];
_displayMessage = Words.faceNotDetected.tr();
});
}
debugPrint('Aniqlangan yuzlar soni: ${faces.length}');
} catch (e) {
debugPrint("Rasmni qayta ishlashda xato: $e");
setState(() => _displayMessage = 'Xato: $e');
} finally {
_isDetecting = false;
}
}
void _checkTaskCompletion(Face face, String? path) {
bool taskCompleted = false;
switch (_currentTask) {
case "look_right":
if (face.headEulerAngleY != null && face.headEulerAngleY! < -15) {
_tasks.remove("look_right");
taskCompleted = true;
}
break;
case "look_left":
if (face.headEulerAngleY != null && face.headEulerAngleY! > 15) {
_tasks.remove("look_left");
taskCompleted = true;
}
break;
case "look_up":
if (face.headEulerAngleX != null && face.headEulerAngleX! > 15) {
_tasks.remove("look_up");
taskCompleted = true;
}
break;
case "look_down":
if (face.headEulerAngleX != null && face.headEulerAngleX! < -15) {
_tasks.remove("look_down");
taskCompleted = true;
}
break;
case "smile":
if (face.smilingProbability != null && face.smilingProbability! > 0.7) {
_tasks.remove("smile");
taskCompleted = true;
_startCountdown();
}
break;
case "close_eyes":
if ((face.leftEyeOpenProbability != null &&
face.leftEyeOpenProbability! < 0.3) &&
(face.rightEyeOpenProbability != null &&
face.rightEyeOpenProbability! < 0.3)) {
_tasks.remove("close_eyes");
taskCompleted = true;
}
break;
}
if (taskCompleted || _currentTask == 'take_action') {
if (_currentTask != 'smile') {
setState(() {
_currentTask = _tasks.isNotEmpty
? _tasks[_random.nextInt(_tasks.length)]
: 'done';
});
}
}
if (_tasks.isEmpty && !_isCountingDown) _startCountdown();
}
void _startCountdown() {
setState(() {
_currentTask = 'hold_still';
_isCountingDown = true;
_countdown = 0;
_displayMessage = Words.holdStillCountdown.tr();
});
Future.doWhile(() async {
await Future.delayed(const Duration(seconds: 1));
setState(() {
_countdown++;
_displayMessage = '${Words.holdStillCountdown.tr()} $_countdown';
});
if (_countdown == 3) {
_takePictureAndSendToBackend();
return false;
}
return true;
});
}
Future _takePictureAndSendToBackend() async {
try {
final XFile? picture = await _cameraController?.takePicture();
if (picture != null) {
debugPrint("Backendga yuborildi: ${picture.path}");
showSuccess("Success action!");
} else {
debugPrint("Rasm olishda xato: Rasm topilmadi");
showErrors('Rasm olishda xato: Rasm topilmadi');
}
} catch (e) {
debugPrint("Rasm olishda xato: $e");
showErrors('Rasm olishda xato: $e');
} finally {
setState(() {
_isCountingDown = false;
_currentTask = 'done';
_displayMessage = Words.done.tr();
});
}
}
InputImageRotation _getImageRotation() {
final int sensorOrientation =
_cameraController!.description.sensorOrientation;
switch (sensorOrientation) {
case 90:
return InputImageRotation.rotation90deg;
case 180:
return InputImageRotation.rotation180deg;
case 270:
return InputImageRotation.rotation270deg;
default:
return InputImageRotation.rotation0deg;
}
}
@override
void dispose() {
_cameraController?.dispose();
_faceDetector?.close();
super.dispose();
}
@override
Widget build(BuildContext context) {
if (!_isCameraInitialized ||
_cameraController == null ||
!_cameraController!.value.isInitialized) {
return const Scaffold(
body: Center(child: CircularProgressIndicator()),
);
}
final size = MediaQuery.of(context).size;
final cameraPreviewSize = Size(
_cameraController!.value.previewSize!.height,
_cameraController!.value.previewSize!.width,
);
return Scaffold(
body: Stack(
fit: StackFit.expand,
children: [
CameraPreview(_cameraController!),
Positioned(
top: 50,
left: 0,
right: 0,
child: Center(
child: Container(
padding: const EdgeInsets.all(10),
decoration: BoxDecoration(
color: Colors.black54,
borderRadius: BorderRadius.circular(10),
),
child: Text(
_displayMessage,
style: const TextStyle(color: Colors.white, fontSize: 20),
),
),
),
),
..._faces.map((face) {
final rect = face.boundingBox;
final scaleX = size.width / cameraPreviewSize.width;
final scaleY = size.height / cameraPreviewSize.height;
return Positioned(
left: rect.left * scaleX,
top: rect.top * scaleY,
width: rect.width * scaleX,
height: rect.height * scaleY,
child: Container(
decoration: BoxDecoration(
border: Border.all(color: Colors.red, width: 2.w),
),
),
);
}),
],
),
);
}
}
```
### tarjimalar
```dart
final Map taskMessagesUz = {
'takeAction': "Harakatni boshlash",
'done': "Tugallandi",
'lookLeft': "Chapga qarang",
'lookRight': "O‘ngga qarang",
'lookUp': "Tepaga qarang",
'lookDown': "Pastga qarang",
'smile': "Tabassum qiling",
'closeEyes': "Ko‘zingizni yuming",
'holdStill': "Qimirlamang",
'faceNotDetected': "Yuz aniqlanmadi",
'cameraPermissionPermanentlyDenied':
"Kamera ruxsati doimiy rad etilgan. Iltimos, sozlamalardan ruxsat bering.",
'cameraPermissionDenied': "Kamera ruxsati berilmadi! Iltimos, ruxsat bering.",
'noCameraFound': "Hech qanday kamera topilmadi!",
'cameraInitError': "Kamera initsializatsiyasida xato:",
'holdStillCountdown': "Qimirlamay turing: ",
};
final Map taskMessagesRu = {
'takeAction': "Начните действие",
'done': "Завершено",
'lookLeft': "Посмотрите налево",
'lookRight': "Посмотрите направо",
'lookUp': "Посмотрите вверх",
'lookDown': "Посмотрите вниз",
'smile': "Улыбайтесь",
'closeEyes': "Закройте глаза",
'holdStill': "Замрите",
'faceNotDetected': "Лицо не обнаружено",
'cameraPermissionPermanentlyDenied':
"Доступ к камере был отклонен навсегда. Разрешите доступ в настройках.",
'cameraPermissionDenied': "Доступ к камере отклонен! Пожалуйста, разрешите доступ.",
'noCameraFound': "Камера не найдена!",
'cameraInitError': "Ошибка инициализации камеры:",
'holdStillCountdown': "Замрите: ",
};
final Map taskMessagesEn = {
'takeAction': "Start the action",
'done': "Completed",
'lookLeft': "Look to the left",
'lookRight': "Look to the right",
'lookUp': "Look up",
'lookDown': "Look down",
'smile': "Smile",
'closeEyes': "Close your eyes",
'holdStill': "Hold still",
'faceNotDetected': "Face not detected",
'cameraPermissionPermanentlyDenied':
"Camera permission is permanently denied. Please allow it from settings.",
'cameraPermissionDenied': "Camera permission denied! Please allow access.",
'noCameraFound': "No camera found!",
'cameraInitError': "Camera initialization error:",
'holdStillCountdown': "Hold still: ",
};
```