Class ByQuadrantReader

Namespace

ZXing.Multi

Assembly

zxing.dll

This class attempts to decode a barcode from an image, not by scanning the whole image, but by scanning subsets of the image. This is important when there may be multiple barcodes in an image, and detecting a barcode may find parts of multiple barcode and fail to decode (e.g. QR Codes). Instead this scans the four quadrants of the image -- and also the center 'quadrant' to cover the case where a barcode is found in the center.

public sealed class ByQuadrantReader : Reader

Inheritance

object

ByQuadrantReader

Implements

Reader

Inherited Members

object.GetType()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Constructors

ByQuadrantReader(Reader)

Initializes a new instance of the ByQuadrantReader class.

public ByQuadrantReader(Reader @delegate)

Parameters

delegate Reader

The @delegate.

See Also

GenericMultipleBarcodeReader

Methods

decode(BinaryBitmap)

Locates and decodes a barcode in some format within an image.

public Result decode(BinaryBitmap image)

Parameters

image BinaryBitmap

image of barcode to decode

Returns

Result

String which the barcode encodes

See Also

GenericMultipleBarcodeReader

decode(BinaryBitmap, IDictionary<DecodeHintType, object>)

Locates and decodes a barcode in some format within an image. This method also accepts hints, each possibly associated to some data, which may help the implementation decode.

public Result decode(BinaryBitmap image, IDictionary<DecodeHintType, object> hints)

Parameters

image BinaryBitmap

image of barcode to decode

hints IDictionary<DecodeHintType, object>

passed as a IDictionary<TKey, TValue> from DecodeHintType to arbitrary data. The meaning of the data depends upon the hint type. The implementation may or may not do anything with these hints.

Returns

Result

String which the barcode encodes

See Also

GenericMultipleBarcodeReader

reset()

Resets any internal state the implementation has after a decode, to prepare it for reuse.

public void reset()

See Also

GenericMultipleBarcodeReader

See Also

GenericMultipleBarcodeReader