Package boofcv.alg.fiducial.qrcode

Class QrCodeDecoderImage<T extends ImageGray<T>>

java.lang.Object

boofcv.alg.fiducial.qrcode.QrCodeDecoderImage<T>

public class QrCodeDecoderImage<T extends ImageGray<T>>
extends Object

Uses position pattern graph to find candidate QR Codes. From those it attempts to decode each QR Code.

Field Summary

Fields

Modifier and Type	Field	Description
boolean	considerTransposed	Should it consider a QR code which has been encoded with a transposed bit pattern?

Constructor Summary

Constructors

Constructor	Description
QrCodeDecoderImage(@Nullable String forceEncoding, String defaultEncoding, Class<T> imageType)

Method Summary

Modifier and Type	Method	Description
void	process(List<PositionPatternNode> pps, T gray)	Detects QR Codes inside image using position pattern graph
void	setLensDistortion(int width, int height, @Nullable LensDistortionNarrowFOV model)	Specifies transforms which can be used to change coordinates from distorted to undistorted and the opposite coordinates.
static void	transposeCorners(Polygon2D_F64 c)	Transposes the order of corners in the quadrilateral

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

considerTransposed

public boolean considerTransposed

Should it consider a QR code which has been encoded with a transposed bit pattern?

See Also:

• ConfigQrCode.considerTransposed

Constructor Details

QrCodeDecoderImage

public QrCodeDecoderImage(@Nullable
 @Nullable String forceEncoding,
 String defaultEncoding,
 Class<T> imageType)

Parameters:

forceEncoding - Force the default encoding to be this. Null for default

Method Details

process

public void process(List<PositionPatternNode> pps,
 T gray)

Detects QR Codes inside image using position pattern graph

Parameters:

pps - position pattern graph

gray - Gray input image

transposeCorners

public static void transposeCorners(Polygon2D_F64 c)

Transposes the order of corners in the quadrilateral

setLensDistortion

public void setLensDistortion(int width,
 int height,
 @Nullable
 @Nullable LensDistortionNarrowFOV model)

Specifies transforms which can be used to change coordinates from distorted to undistorted and the opposite coordinates. The undistorted image is never explicitly created.

Parameters:

width - Input image width. Used in sanity check only.

height - Input image height. Used in sanity check only.

model - distortion model. Null to remove a distortion model.