flutter_document_scan_sdk

Description:

flutter document scan sdk

flutter_document_scan_sdk #
The Flutter plugin is a wrapper for Dynamsoft's Document Normalizer SDK. It enables you to build document rectification applications for Windows, Linux, web, Android and iOS.
Try Document Rectification Example #
Desktop: Windows & Linux #
Windows
cd example
flutter run -d windows
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Linux
cd example
flutter run -d linux
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Web #
cd example
flutter run -d chrome
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Mobile: Android & iOS #
cd example
flutter run
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Getting a License Key for Dynamsoft Document Normalizer #

Supported Platforms #

Web
Windows
Linux
Android
iOS

Installation #
Add flutter_document_scan_sdk as a dependency in your pubspec.yaml file.
dependencies:
...
flutter_document_scan_sdk:
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One More Step for Web #
Include the JavaScript library of Dynamsoft Document Normalizer in your index.html file:
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/ddn.js"></script>
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API Compatibility #



Methods
Android
iOS
Windows
Linux
Web




Future<int?> init(String key)
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Future<List<DocumentResult>?> detectFile(String file)
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Future<NormalizedImage?> normalizeFile(String file, dynamic points)
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Future<int?> setParameters(String params)
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Future<String?> getParameters()
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Future<List<DocumentResult>?> detectBuffer(Uint8List bytes, int width, int height, int stride, int format)
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Future<NormalizedImage?> normalizeBuffer(Uint8List bytes, int width, int height, int stride, int format, dynamic points)
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Usage #


Initialize the document rectification SDK with a valid license key:
final _flutterDocumentScanSdkPlugin = FlutterDocumentScanSdk();
await _flutterDocumentScanSdkPlugin.init(
"DLS2eyJoYW5kc2hha2VDb2RlIjoiMjAwMDAxLTE2NDk4Mjk3OTI2MzUiLCJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSIsInNlc3Npb25QYXNzd29yZCI6IndTcGR6Vm05WDJrcEQ5YUoifQ==");

await _flutterDocumentScanSdkPlugin.setParameters(Template.grayscale);
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Do document edge detection and return quadrilaterals:
List<DocumentResult>? detectionResults =
await _flutterDocumentScanSdkPlugin
.detectFile(file);
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Detect document edges from a buffer:
List<DocumentResult>? detectionResults =
await _flutterDocumentScanSdkPlugin
.detectBuffer(bytes, width, height, stride, format);
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Rectify the document based on document corners:
NormalizedImage? normalizedImage = await _flutterDocumentScanSdkPlugin.normalizeFile(
file, detectionResults[0].points);
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Rectify the document based on document corners from a buffer:
NormalizedImage? normalizedImage = await _flutterDocumentScanSdkPlugin.normalizeBuffer(
bytes, width, height, stride, format, detectionResults[0].points);
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Save the rectified document image to a file:
if (normalizedUiImage != null) {
const String mimeType = 'image/png';
ByteData? data = await normalizedUiImage!
.toByteData(format: ui.ImageByteFormat.png);
if (data != null) {
final XFile imageFile = XFile.fromData(
data.buffer.asUint8List(),
mimeType: mimeType,
);
await imageFile.saveTo(path);
}
}
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