QRCodeDetectorDecode Method

Decodes QR code in image once it's found by the detect() method. Returns UTF8-encoded output string or empty string if the code cannot be decoded.

Namespace: OpenCvSharp
Assembly: OpenCvSharp (in OpenCvSharp.dll) Version: 1.0.0

Syntax

C++

Copy

public string Decode(
	InputArray img,
	IEnumerable<Point2f> points,
	OutputArray straightQrCode = null
)

Public Function Decode ( 
	img As InputArray,
	points As IEnumerable(Of Point2f),
	Optional straightQrCode As OutputArray = Nothing
) As String

public:
String^ Decode(
	InputArray^ img, 
	IEnumerable<Point2f>^ points, 
	OutputArray^ straightQrCode = nullptr
)

member Decode : 
        img : InputArray * 
        points : IEnumerable<Point2f> * 
        ?straightQrCode : OutputArray 
(* Defaults:
        let _straightQrCode = defaultArg straightQrCode null
*)
-> string

Parameters

img: Type: OpenCvSharpInputArray
grayscale or color (BGR) image containing QR code.
points: Type: System.Collections.GenericIEnumerablePoint2f
Quadrangle vertices found by detect() method (or some other algorithm).
straightQrCode (Optional): Type: OpenCvSharpOutputArray
The optional output image containing rectified and binarized QR code

Return Value

Type: String

[Missing <returns> documentation for "M:OpenCvSharp.QRCodeDetector.Decode(OpenCvSharp.InputArray,System.Collections.Generic.IEnumerable{OpenCvSharp.Point2f},OpenCvSharp.OutputArray)"]

Reference

QRCodeDetector Class

OpenCvSharp Namespace

QRCodeDetectorAddLanguageSpecificTextSet("LSTE4930BF2_0?cpp=::|nu=.");Decode Method

Parameters

Return Value

Reference

QRCodeDetectorDecode Method