QRCodeDetectorDecodeMulti Method (InputArray, IEnumerablePoint2f, String, Mat, Boolean)

Decodes QR codes 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

protected bool DecodeMulti(
	InputArray img,
	IEnumerable<Point2f> points,
	out string[] decodedInfo,
	out Mat[] straightQrCode,
	bool isOutputStraightQrCode
)

Protected Function DecodeMulti ( 
	img As InputArray,
	points As IEnumerable(Of Point2f),
	<OutAttribute> ByRef decodedInfo As String(),
	<OutAttribute> ByRef straightQrCode As Mat(),
	isOutputStraightQrCode As Boolean
) As Boolean

protected:
bool DecodeMulti(
	InputArray^ img, 
	IEnumerable<Point2f>^ points, 
	[OutAttribute] array<String^>^% decodedInfo, 
	[OutAttribute] array<Mat^>^% straightQrCode, 
	bool isOutputStraightQrCode
)

member DecodeMulti : 
        img : InputArray * 
        points : IEnumerable<Point2f> * 
        decodedInfo : string[] byref * 
        straightQrCode : Mat[] byref * 
        isOutputStraightQrCode : bool -> bool

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).
decodedInfo: Type: SystemString
UTF8-encoded output vector of string or empty vector of string if the codes cannot be decoded.
straightQrCode: Type: OpenCvSharpMat
The optional output image containing rectified and binarized QR code
isOutputStraightQrCode: Type: SystemBoolean
to output straightQrCode

Return Value

Type: Boolean

[Missing <returns> documentation for "M:OpenCvSharp.QRCodeDetector.DecodeMulti(OpenCvSharp.InputArray,System.Collections.Generic.IEnumerable{OpenCvSharp.Point2f},System.String[]@,OpenCvSharp.Mat[]@,System.Boolean)"]

Reference

QRCodeDetector Class

DecodeMulti Overload

OpenCvSharp Namespace