flutter_text_detect_area 0.0.1

The easy way to use this package for text recognition by selecting area over the images in Flutter.​Flutter Text Detect Area's text recognition can recognize/detect text from image's particular area b [...]

Flutter Text Detect Area

​ The easy way to use this package for text recognition by selecting area over the images in Flutter. ​ Flutter Text Detect Area's text recognition can recognize/detect text from image's particular area by dragging/moving/panning area selector. They can also be used to recognise text once and more by passing value of detect once as true/false and also can set enable/disable image interactions by passing value of enableImageInteractions. ​

Installing

1. Add dependency to pubspec.yaml

   Get the latest version in the 'Installing' tab on pub.dev

  dependencies:
      flutter_text_detect_area: <latest-version>

2. Import the package

import 'package:flutter_text_detect_area/flutter_text_detect_area.dart';

Screenshot

Pick Image

You can use Image Picker for pick image from gallery/camera to pass the image for text recognition/detection by it's particular areas ​

import 'package:image_picker/image_picker.dart';
​
final pickedFile = await ImagePicker().pickImage(source: ImageSource.gallery);

​

Text Recognition/Detection Through Select area over image

​ After getting the picked image, we can start doing text recognition by navigate to detection screen. ​

​
Navigator.of(context).push(MaterialPageRoute(
                            builder: (context) => SelectImageAreaTextDetect(
                                detectOnce: isDetectOnce,
                                enableImageInteractions: enableImageInteractions,
                                imagePath: pickedFile?.path ?? '',
                                onDetectText: (v) {
                                  setState(() {
                                    ///For single detection
                                    if (v is String) {
                                      detectedValue = v;
                                    }
                                    ///For multiple area's detections
                                    if (v is List) {
                                      int counter = 0;
                                      v.forEach((element) {
                                        detectedValue += "$counter. \t\t $element \n\n";
                                        counter++;
                                      });
                                    }
                                  });
                                }, onDetectError: (error) {
                                  print(error);
                                  ///This error will occurred in Android only while user will try to crop image at max zoom level then ml kit will throw max 32 height/width exception
                                  if(error is PlatformException && (error.message?.contains("InputImage width and height should be at least 32!") ?? false)) {
                                    ScaffoldMessenger.of(context).showSnackBar(const SnackBar(content: Text("Selected area should be able to crop image with at least 32 width and height.")));
                              }
},)));
​

​

Output

If you'll pass detect once as true then the result of Single Text Detection is single dynamic value.

Screenshot

​ If you'll pass detect once as false then the result of `Multiple Text Detection Through Particular Image's Area` list of dynamic values.

Screenshot

Example Project

You can learn more from example project here.

Changelog

Please see CHANGELOG for more information what has changed recently.

Main Contributors

• Tushar Chovatiya
• Princy Varsani
• Kevin Baldha