DocumentScannerService class

Specialized service providing Document Edge Detection, Perspective Matrix calculations, Shadow Removal image filters, and Auto Crop bounds.

Constructors

DocumentScannerService()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

applyBinarizationFilter(Uint8List grayBytes, {int threshold = 128}) → Uint8List

Converts grayscale buffer to pure black and white (monochrome) document scan.

applyGrayscaleFilter(Uint8List bytes) → Uint8List

Converts color bytes buffer to normalized grayscale.

applyMagicColorFilter(Uint8List grayBytes) → Uint8List

Applies Magic Color document enhancement (contrast boost + high clarity).

applyShadowRemovalFilter(Uint8List grayBytes) → Uint8List

Applies shadow removal and background whitening to document byte buffer.

computePerspectiveTransform(DocumentCorners corners, Size targetSize) → Matrix4

Calculates perspective transformation matrix to flatten quadrilateral into rectangle.

detectDocumentEdges(Size imageSize) → DocumentCorners

Detects document rectangular corners in image frame dimensions.