edu.umich.eecs.april.image

Class AprilTagFilter.GrayModel

java.lang.Object

edu.umich.eecs.april.image.AprilTagFilter.GrayModel

Enclosing class:

AprilTagFilter

static class AprilTagFilter.GrayModel
extends java.lang.Object

Fits a grayscale model over an area of the form: Ax + By + Cxy + D = value We use this model to compute spatially-varying thresholds for reading bits.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) double[][]	A
(package private) double[]	b
(package private) int	nobs
(package private) double[]	X

Constructor Summary

Constructors

Constructor and Description
GrayModel()

Method Summary

Modifier and Type	Method and Description
void	addObservation(double x, double y, double gray)
(package private) void	compute()
(package private) int	getNumObservations()
double	interpolate(double x, double y)

Methods inherited from class java.lang.Object

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

Field Detail

A

double[][] A

b

double[] b

X

double[] X

nobs

int nobs

Constructor Detail

GrayModel

GrayModel()

Method Detail

addObservation

public void addObservation(double x,
                           double y,
                           double gray)

getNumObservations

int getNumObservations()

compute

void compute()

interpolate

public double interpolate(double x,
                          double y)