UBinarizer class abstract

Converts grayscale to 1-bit. Hybrid uses local thresholds so it survives uneven lighting; the global histogram path is used per-row for 1D symbols.

Constructors

UBinarizer()

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

global(UGrayImage image) → UBitMatrix

globalThreshold(UGrayImage image) → int

Otsu-style two-peak estimate over a 32-bucket histogram.

hybrid(UGrayImage image) → UBitMatrix

rowThreshold(Uint8List row, int length) → int

Threshold for a single row of samples, used by the 1D readers.