QRCodeDetectorDecode Method

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Decodes QR code in image once it's found by the detect() method.

Namespace: Emgu.CV
Assembly: Emgu.CV.Platform.NetStandard (in Emgu.CV.Platform.NetStandard.dll) Version: 4.3.0.3890

Syntax

C++

Copy

public string Decode(
	IInputArray image,
	IInputArray points,
	IOutputArray straightQrcode = null
)

Public Function Decode ( 
	image As IInputArray,
	points As IInputArray,
	Optional straightQrcode As IOutputArray = Nothing
) As String

public:
String^ Decode(
	IInputArray^ image, 
	IInputArray^ points, 
	IOutputArray^ straightQrcode = nullptr
)

member Decode : 
        image : IInputArray * 
        points : IInputArray * 
        ?straightQrcode : IOutputArray 
(* Defaults:
        let _straightQrcode = defaultArg straightQrcode null
*)
-> string

Parameters

image: Type: Emgu.CVIInputArray
grayscale or color (BGR) image containing QR code.
points: Type: Emgu.CVIInputArray
Quadrangle vertices found by detect() method (or some other algorithm).
straightQrcode (Optional): Type: Emgu.CVIOutputArray
The optional output image containing rectified and binarized QR code

Return Value

Type: String
UTF8-encoded output string or empty string if the code cannot be decoded.

Reference

QRCodeDetector Class

Emgu.CV Namespace

QRCodeDetectorAddLanguageSpecificTextSet("LST2374E509_0?cpp=::|nu=.");Decode Method

Parameters

Return Value

Reference

QRCodeDetectorDecode Method