flutter_text_detect_area

Description:

flutter text detect area

Flutter Text Detect Area #
The easy way to use this package for text recognition by selecting area over the images and live camera 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 #


Add dependency to pubspec.yaml
Get the latest version in the 'Installing' tab on pub.dev


dependencies:
flutter_text_detect_area: <latest-version>
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Import the package

import 'package:flutter_text_detect_area/flutter_text_detect_area.dart';
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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);
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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.")));
}
},)));
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Output #
If you'll pass detect once as true then the result of Single Text Detection is single dynamic value.
Screenshot #

Output #
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