Catalano.Imaging.Filters

Class MaximumEntropyThreshold

java.lang.Object

Catalano.Imaging.Filters.MaximumEntropyThreshold

All Implemented Interfaces:

IApplyInPlace

public class MaximumEntropyThreshold
extends java.lang.Object
implements IApplyInPlace

Automatic threshold based on the entropy.

See Also:

OtsuThreshold

Constructor Summary

Constructors

Constructor and Description
MaximumEntropyThreshold() Initialize a new instance of the MaximumEntropyThreshold class.
MaximumEntropyThreshold(boolean invert) Initialize a new instance of the MaximumEntropyThreshold class.

Method Summary

Modifier and Type	Method and Description
void	applyInPlace(FastBitmap fastBitmap) Apply filter to an image.
int	CalculateThreshold(FastBitmap fastBitmap) Calculate binarization threshold for the given image.

Methods inherited from class java.lang.Object

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

Constructor Detail

MaximumEntropyThreshold

public MaximumEntropyThreshold()

Initialize a new instance of the MaximumEntropyThreshold class.

MaximumEntropyThreshold

public MaximumEntropyThreshold(boolean invert)

Initialize a new instance of the MaximumEntropyThreshold class.

Parameters:

invert - All pixels with intensities equal or higher than threshold value are converted to black pixels. All other pixels with intensities below threshold value are converted to white pixels.

Method Detail

applyInPlace

public void applyInPlace(FastBitmap fastBitmap)

Description copied from interface: IApplyInPlace

Apply filter to an image.

Specified by:

applyInPlace in interface IApplyInPlace

Parameters:

fastBitmap - Image to be processed.

CalculateThreshold

public int CalculateThreshold(FastBitmap fastBitmap)

Calculate binarization threshold for the given image.

Parameters:

fastBitmap - FastBitmap.

Returns:

Threshold value.