Module org.scijava.ops.image

Package org.scijava.ops.image.threshold.localSauvola

Class ComputeLocalSauvolaThresholdIntegral<T extends RealType<T>>

java.lang.Object

org.scijava.ops.image.threshold.localSauvola.ComputeLocalSauvolaThresholdIntegral<T>

All Implemented Interfaces:

Computers.Arity4<RectangleNeighborhood<? extends Composite<DoubleType>>,T,Double,Double,BitType>, Consumers.Arity5<RectangleNeighborhood<? extends Composite<DoubleType>>,T,Double,Double,BitType>

public class ComputeLocalSauvolaThresholdIntegral<T extends RealType<T>>
extends Object
implements Computers.Arity4<RectangleNeighborhood<? extends Composite<DoubleType>>,T,Double,Double,BitType>

Local thresholding algorithm as proposed by Sauvola et al.

This implementation improves execution speed by using integral images for the computations of mean and standard deviation in the local windows. A significant improvement can be observed for increased window sizes ( span > 10). It operates on RandomAccessibleIntervals of RealType, i.e. explicit conversion to an integral image is not required.

Author:

Stefan Helfrich (University of Konstanz)

See Also:

ComputeLocalSauvolaThreshold

Implementation Note:

op name='threshold.localSauvola', priority='-101.'

Field Summary

Fields

Modifier and Type	Field	Description
static double	DEFAULT_K
static double	DEFAULT_R

Constructor Summary

Constructors

Constructor	Description
ComputeLocalSauvolaThresholdIntegral()

Method Summary

Modifier and Type	Method	Description
void	compute(RectangleNeighborhood<? extends Composite<DoubleType>> inputNeighborhood, T inputCenterPixel, Double k, Double r, BitType output)	TODO

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.scijava.function.Computers.Arity4

accept

Methods inherited from interface org.scijava.function.Consumers.Arity5

andThen

Field Detail

DEFAULT_K

public static final double DEFAULT_K

See Also:

Constant Field Values

DEFAULT_R

public static final double DEFAULT_R

See Also:

Constant Field Values

Constructor Detail

ComputeLocalSauvolaThresholdIntegral

public ComputeLocalSauvolaThresholdIntegral()

Method Detail

compute

public void compute(RectangleNeighborhood<? extends Composite<DoubleType>> inputNeighborhood,
                    T inputCenterPixel,
                    Double k,
                    Double r,
                    BitType output)

TODO

Specified by:

compute in interface Computers.Arity4<RectangleNeighborhood<? extends Composite<DoubleType>>,T extends RealType<T>,Double,Double,BitType>

Parameters:

inputNeighborhood -

inputCenterPixel -

k -

r -

output -