ocr_mrz 0.0.98 
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A new Flutter package uses ocr to get mrz
import 'dart:convert';
import 'dart:developer';
import 'package:ocr_mrz/aggregator.dart';
import 'package:ocr_mrz/mrz_parser/mrz_result.dart';
import 'package:ocr_mrz/my_ocr_handler.dart';
import 'package:ocr_mrz/my_ocr_handler_new.dart';
import 'package:ocr_mrz/name_validation_data_class.dart';
import 'package:ocr_mrz/ocr_mrz_api_config.dart';
import 'package:ocr_mrz/ocr_mrz_new_controller.dart';
import 'package:ocr_mrz/ocr_setting_dialog.dart';
import 'package:flutter/material.dart';
import 'package:ocr_mrz/mrz_result_class_fix.dart';
import 'package:ocr_mrz/ocr_mrz.dart';
import 'package:ocr_mrz/ocr_mrz_settings_class.dart';
import 'package:ocr_mrz/orc_mrz_log_class.dart';
import 'package:ocr_mrz/passport_dialog.dart';
import 'package:ocr_mrz/session_logger.dart';
import 'package:ocr_mrz/session_status_class.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(title: 'Flutter Demo', theme: ThemeData(colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple)), home: const MyHomePage(title: 'Flutter Demo Home Page'));
}
}
String token =
"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJfaWQiOiI2OTVjMjQwZWJiMmQ5MzE1YWZkN2EwYzgiLCJ1c2VyIjoidGVzdC1tYWhtb3VkIiwibm9uY2UiOiJmMGI5ZjE3Ny03NWM1LTQ1MmEtOWI5Ni1kMWYwMmI2ZTIxMzUiLCJpYXQiOjE3NzMzMzY2NzUsImV4cCI6MTc3NTQ5NjY3NX0.H7fT2PZbw-BEgZPvn3f2Ors3EVQpzwq2aFAb4zjaNdo";
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
OcrMrzController controller = OcrMrzController(
sessionLogger: SessionLogger(
logInterval: Duration(seconds: 1),
onLog: (l) {
// log(l.toString());
},
onLogBatch: (List<SessionLogEntry> lll, LogFlushReason reason) {
// final lll = ll.where((a)=>((a.step??0) >0));
//
// if(lll.isEmpty){
// return;
// }
// log("${lll.length} ==> log count");
try {
for (var l in lll) {
final encodeed = jsonEncode(l.toJson());
if (l.step != 0) {
// log(encodeed);
}
}
} catch (e) {
// log("$e");
// if(e is Error){
// log("${e.stackTrace}");
// }
}
// log("${reason.name}");
},
),
// apiConfig: OcrMrzApiConfig(
// url: "https://documentReader.multidcs.com/api/v1/document2",
// attachPhoto: false,
// photoQuality: 35,
// headers: {"content-type": "application/json", "Authorization": "Bearer $token"},
// bodyBuilder:
// (c) => {
// "relatedId": null,
// "data": {"rawText": c.map((o) => o.text).toList()},
// },
// interval: Duration(seconds: 2),
// ),
);
OcrMrzControllerNew controllerNew = OcrMrzControllerNew(
apiConfig: OcrMrzApiConfig(
url: "https://documentReader.multidcs.com/api/v1/document2",
attachPhoto: false,
photoQuality: 35,
headers: {"content-type": "application/json", "Authorization": "Bearer $token"},
bodyBuilder:
(c) => {
"relatedId": null,
"data": {"rawText": c.map((o) => o.text).toList()},
},
interval: Duration(seconds: 2),
),
);
bool scanning = true;
OcrMrzSetting setting = OcrMrzSetting(
validateBirthDateValid: true,
validatePersonalNumberValid: false,
validateLinesLength: false,
validateFinalCheckValid: false,
validateExpiryDateValid: true,
validateDocNumberValid: false,
validateNames: true,
algorithm: ParseAlgorithm.method2,
nameValidationMode: NameValidationMode.contain,
rotation: 0,
);
int logCount = 0;
OcrMrzLog? lastLog;
OcrMrzConsensus? improving;
List<String> fixed = [];
List<SessionStatus> sessionList = [];
showFoundPassport(OcrMrzResult res) {
scanning = false;
setState(() {});
showDialog(
context: context,
builder: (BuildContext context) {
return PassportDialog(result: res);
},
).then((a) {
scanning = true;
controller.resetSession();
setState(() {});
});
}
@override
Widget build(BuildContext context) {
// log(lastLog!.fixedMrzLines.join("\n"));
// log(lastLog!.rawMrzLines.join("\n"));
return Scaffold(
appBar: AppBar(
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
title: GestureDetector(
onLongPress: () {
controller.resetSession();
controllerNew.resetSession();
// log("changeApiConfig");
// controller.changeApiConfig(
// OcrMrzApiConfig(
// url: "https://documentReader.multidcs.com/api/v1/document",
// attachPhoto: false,
// photoQuality: 10,
// headers: {
// "Authorization":
// "Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJfaWQiOiI2OTVjMjQwZWJiMmQ5MzE1YWZkN2EwYzgiLCJ1c2VyIjoiZmFyaGFuZyIsIm5vbmNlIjoiODMyYTIzNjEtZmU3ZC00YmZmLThlY2QtYTRiMzA4MTVhNGY5IiwiaWF0IjoxNzY3NzAyNDQ5LCJleHAiOjE3Njc3MjQwNDl9.a3KaaIyOSXOpJGtibrjFhXLj31EREknA9Qb-qcdZb8s",
// },
// bodyBuilder:
// (c) => {
// "relatedId": null,
// "data": {"rawText": c.map((o) => o.text).toList()},
// },
// interval: Duration(seconds: 2),
// ),
// );
// controller.apiConfigNotifier.value = OcrMrzApiConfig(
// url: controller.apiConfigNotifier.value?.url ?? '',
// headers: controller.apiConfigNotifier.value?.headers ?? {},
// bodyBuilder: (controller.apiConfigNotifier.value?.bodyBuilder) ?? (a) => {},
// attachPhoto: false,
// interval: Duration(seconds: 2),
// );
},
onTap: () {
showDialog(
context: context,
builder: (BuildContext context) {
return SessionLogHistoryListDialog(historyList: controller.getSessionHistory.value);
},
);
},
child: ValueListenableBuilder<List<SessionStatus>>(
valueListenable: controller.getSessionHistory,
builder: (context, value, child) {
return Text("Passport Reader ${sessionList.length}");
},
),
),
actions: [
IconButton(
onPressed: () {
showDialog(
context: context,
builder: (BuildContext context) {
return OcrSettingDialog(current: setting);
},
).then((a) {
if (a is OcrMrzSetting) {
setting = OcrMrzSetting.fromJson(a.toJson());
setState(() {});
}
});
// controller.flashOn();
},
icon: Icon(Icons.settings),
),
],
),
// floatingActionButton: FloatingActionButton(onPressed: () async {
// final path = await controller.takePicture();
// log("path :$path");
//
// }),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Expanded(
child: Stack(
children: [
false
? OcrMrzReaderNew(
onFoundMrz: (MrzResult result) {
log("we found mrz");
log(result.toString());
},
onProgress: (s) {
// List<String> lines = s["shapedMrz"];
// log("\n${lines.join("\n")}");
// String summary = s["summaryString"];
// log("${summary}");
// log("${s}");
},
controller: controllerNew,
)
: OcrMrzReader(
onSessionChange: (List<SessionStatus> sl) {
if (sl.length > 1) {
sessionList = sl;
setState(() {});
}
},
nameValidations: [
NameValidationData(lastName: "XXXXXX", firstName: "XXXXXX"),
NameValidationData(lastName: "OZOLKALNAS", firstName: "LIENE MARASANA"),
],
onConsensusChanged: (a) {
// log("onCon changed");
improving = a;
setState(() {});
},
controller: controller,
showFrame: false,
setting: setting,
countValidation: OcrMrzCountValidation(
// nameValidCount: 5
),
onFoundMrz: (a) {
log("onFoundMrz ${a.toJson()}");
if (scanning) {
if (a.matchSetting(setting)) {
log("${jsonEncode(a.toDocument()?.toJson())}");
// showFoundPassport(a);
}
}
},
mrzLogger: (l) {
if (l.rawMrzLines.isNotEmpty && l.fixedMrzLines.join().trim().isNotEmpty) {
logCount++;
lastLog = l;
fixed = l.fixedMrzLines;
setState(() {});
// log("log recieved\n${l.fixedMrzLines.join("\n")}");
// log("log setted\n${lastLog!.fixedMrzLines.join("\n")}");
// log(jsonEncode(l.toJson()));
}
},
),
Positioned(
bottom: 24,
left: 0,
right: 0,
child:
lastLog == null
? SizedBox()
: Container(
padding: EdgeInsets.symmetric(horizontal: 12, vertical: 6),
color: Colors.white,
child: Column(
children: [
Row(children: [Expanded(child: FittedBox(child: Text(lastLog!.rawMrzLines.join("\n"))))]),
Divider(),
Row(children: [Expanded(child: FittedBox(child: Text(fixed.join("\n"))))]),
Divider(),
Row(children: [Expanded(child: FittedBox(child: Text(lastLog!.validation.toString())))]),
],
),
),
),
Positioned(top: 24, left: 0, right: 0, child: improving == null ? SizedBox() : ImprovingResultWidget(improving!)),
],
),
),
],
),
),
);
}
}
class ImprovingResultWidget extends StatelessWidget {
final OcrMrzConsensus improving;
const ImprovingResultWidget(this.improving, {super.key});
@override
Widget build(BuildContext context) {
return Container(
color: Colors.white,
padding: EdgeInsets.symmetric(horizontal: 12, vertical: 8),
child: Column(
spacing: 4,
children: [
Row(
spacing: 4,
children: [
SingularValidationWidget(state: improving.birthDateStat, label: 'Birth Date', valid: improving.valid.birthDateValid, value: improving.birthDate?.toString(), count: improving.birthDateStat.consensusCount),
SingularValidationWidget(
state: improving.expiryDateStat,
label: 'Expiry Date',
valid: improving.valid.expiryDateValid ?? false,
value: improving.expiryDate?.toString(),
count: improving.expiryDateStat.consensusCount,
),
SingularValidationWidget(state: improving.sexStat, label: 'Gender', valid: improving.valid.expiryDateValid ?? false, value: improving.sex ?? '', count: improving.sexStat.consensusCount),
],
),
Row(
spacing: 4,
children: [
SingularValidationWidget(state: improving.nationalityStat, label: 'Nationality', valid: improving.valid.nationalityValid ?? false, value: improving.nationality, count: improving.nationalityStat.consensusCount),
],
),
Row(
spacing: 4,
children: [
SingularValidationWidget(state: improving.documentNumberStat, label: 'Doc NO.', valid: improving.valid.docNumberValid ?? false, value: improving.documentNumber, count: improving.documentNumberStat.consensusCount),
SingularValidationWidget(state: improving.docCodeStat, label: 'Doc Type', valid: improving.valid.docCodeValid ?? false, value: improving.docCode, count: improving.docCodeStat.consensusCount),
SingularValidationWidget(state: improving.countryCodeStat, label: 'Issuing', valid: improving.valid.countryValid ?? false, value: improving.countryCode, count: improving.countryCodeStat.consensusCount),
],
),
Row(
spacing: 4,
children: [
SingularValidationWidget(state: improving.firstNameStat, label: 'Firstname.', valid: improving.valid.nameValid ?? false, value: improving.firstName, count: improving.firstNameStat.consensusCount, rowCount: 2),
SingularValidationWidget(rowCount: 2, state: improving.lastNameStat, label: 'Lastname', valid: improving.valid.nameValid ?? false, value: improving.lastName, count: improving.lastNameStat.consensusCount),
],
),
FittedBox(child: Text(improving!.mrzLines.join("\n"))),
// Wrap(
// runSpacing: 4,
// direction: Axis.horizontal,
// spacing: 12,
//
// children: [
//
//
//
// ?setting.validateFinalCheckValid
// ? SingularValidationWidget(
// state: improving?.firstNameStat,
// label: 'Final Check',
// valid: improving?.valid.finalCheckValid ?? false,
// value: (improving?.valid.finalCheckValid ?? false) ? "Yes" : "No",
// count: improving?.firstNameStat.consensusCount,
// )
// : null,
//
// ?setting.validatePersonalNumberValid
// ? SingularValidationWidget(
// state: improving?.personalNumberStat,
// label: 'Personal NO.',
// valid: improving?.valid.personalNumberValid ?? false,
// value: improving?.personalNumber,
// count: improving?.personalNumberStat.consensusCount,
// )
// : null,
// ?setting.validateLinesLength
// ? SingularValidationWidget(
// state: improving?.line1Stat,
// label: 'Lines Length',
// valid: improving?.valid.linesLengthValid ?? false,
// value: (improving?.valid.linesLengthValid ?? false) ? "Yes" : "No",
// count: improving?.line1Stat.consensusCount,
// )
// : null,
// ],
// ),
const SizedBox(height: 4),
],
),
);
}
}
class SingularValidationWidget extends StatelessWidget {
final String label;
final String? value;
final bool valid;
final FieldStat? state;
final int? count;
final int rowCount;
const SingularValidationWidget({super.key, required this.label, required this.value, required this.valid, required this.count, required this.state, this.rowCount = 4});
@override
Widget build(BuildContext context) {
ThemeData theme = Theme.of(context);
double width = MediaQuery.of(context).size.width;
double height = MediaQuery.of(context).size.height;
Color color = valid ? Colors.green : Colors.grey;
return GestureDetector(
onTap: () {},
child: Stack(
children: [
Container(
width: (MediaQuery.of(context).size.width - 60) * (1 / rowCount),
padding: EdgeInsets.symmetric(horizontal: 5, vertical: 2),
decoration: BoxDecoration(border: Border.all(color: color, width: 1), color: color.withOpacity(.3), borderRadius: BorderRadius.circular(5)),
alignment: Alignment.center,
child: Column(
children: [
Text(
// "${label} (${count??0})",
"${label}",
style: TextStyle(color: color, fontWeight: FontWeight.bold, fontSize: 10, height: 1),
),
Text(value ?? '', style: TextStyle(color: color, fontSize: 11, height: 1), overflow: TextOverflow.ellipsis),
],
),
),
Positioned(right: 2, bottom: 2, child: Text('${count?.toString() ?? ''}', style: TextStyle(color: Colors.black, fontSize: 9, height: 1, fontWeight: FontWeight.bold), overflow: TextOverflow.ellipsis)),
],
),
);
}
}Metadata
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Publisher
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Weekly Downloads
Metadata
A new Flutter package uses ocr to get mrz
Repository (GitHub)
View/report issues
License
MIT (license)
Dependencies
camera_kit_plus, collection, flutter, http, image, intl
