Package boofcv.alg.fiducial.qrcode

Class QrCodeBinaryGridReader<T extends ImageGray<T>>

java.lang.Object

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

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

Reads binary values from the qr code's grid. Top left corner of the qr code is it's origin. +x = right and +y = down same as it is in images.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	BIT_INTENSITY_SAMPLES

Constructor Summary

Constructors

Constructor	Description
QrCodeBinaryGridReader(Class<T> imageType)

Method Summary

Modifier and Type	Method	Description
void	gridToImage(double row, double col, Point2D_F64 image)
void	gridToImage(float row, float col, Point2D_F32 image)
void	imageToGrid(float x, float y, Point2D_F32 grid)
void	imageToGrid(Point2D_F32 pixel, Point2D_F32 grid)
void	imageToGrid(Point2D_F64 pixel, Point2D_F64 grid)	Converts a pixel coordinate into a grid coordinate.
float	read(float row, float col)
int	readBit(int row, int col)	Reads a bit from the qr code's data matrix while adjusting for location distortions using known feature locations.
void	readBitIntensity(int row, int col, DogArray_F32 intensity)	Reads intensity values around the location of each bit.
void	setImage(T image)
void	setLensDistortion(int width, int height, @Nullable LensDistortionNarrowFOV model)
void	setMarker(QrCode qr)
void	setMarkerUnknownVersion(QrCode qr, float threshold)
void	setSquare(Polygon2D_F64 square, float threshold)

Methods inherited from class java.lang.Object

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

Field Details

BIT_INTENSITY_SAMPLES

public static final int BIT_INTENSITY_SAMPLES

See Also:

• Constant Field Values

Constructor Details

QrCodeBinaryGridReader

public QrCodeBinaryGridReader(Class<T> imageType)

Method Details

setImage

public void setImage(T image)

setLensDistortion

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

setMarker

public void setMarker(QrCode qr)

setSquare

public void setSquare(Polygon2D_F64 square,
 float threshold)

setMarkerUnknownVersion

public void setMarkerUnknownVersion(QrCode qr,
 float threshold)

imageToGrid

public void imageToGrid(float x,
 float y,
 Point2D_F32 grid)

imageToGrid

public void imageToGrid(Point2D_F32 pixel,
 Point2D_F32 grid)

imageToGrid

public void imageToGrid(Point2D_F64 pixel,
 Point2D_F64 grid)

Converts a pixel coordinate into a grid coordinate.

gridToImage

public void gridToImage(float row,
 float col,
 Point2D_F32 image)

gridToImage

public void gridToImage(double row,
 double col,
 Point2D_F64 image)

read

public float read(float row,
 float col)

readBitIntensity

public void readBitIntensity(int row,
 int col,
 DogArray_F32 intensity)

Reads intensity values around the location of each bit.

Parameters:

row - grid row

col - grid column

intensity - (Output) Storage for intensity values

readBit

public int readBit(int row,
 int col)

Reads a bit from the qr code's data matrix while adjusting for location distortions using known feature locations.

Parameters:

row - grid row

col - grid column

Returns:

0 or 1 value for the bit