Package boofcv.abst.feature.detect.intensity

Class WrapperHessianThreeImageDetIntensity<I extends ImageGray<I>,D extends ImageGray<D>>

java.lang.Object

boofcv.abst.feature.detect.intensity.BaseGeneralFeatureIntensity<I,D>

boofcv.abst.feature.detect.intensity.WrapperHessianThreeImageDetIntensity<I,D>

All Implemented Interfaces:

GeneralFeatureIntensity<I,D>

public class WrapperHessianThreeImageDetIntensity<I extends ImageGray<I>,D extends ImageGray<D>>
extends BaseGeneralFeatureIntensity<I,D>

Computes the Hessian determinant directory from the input image. Ignores other derivatives passed on

Constructor Summary

Constructors

Constructor	Description
WrapperHessianThreeImageDetIntensity(Class<I> imageType)

Method Summary

Modifier and Type	Method	Description
@Nullable ListIntPoint2D	getCandidatesMax()	(Optional) Returns a list of candidate for local maximums.
@Nullable ListIntPoint2D	getCandidatesMin()	(Optional) Returns a list of candidate for local minimums.
int	getIgnoreBorder()	Pixels within this distance from the image border are not processed.
boolean	getRequiresGradient()	If the image gradient is required for calculations.
boolean	getRequiresHessian()	Is the image's second derivative required?
boolean	hasCandidates()	If true there is a list of candidate corners for minimums and/or maximums.
boolean	localMaximums()	Indicates if local maximums are features or not.
boolean	localMinimums()	Indicates if local minimums are features or not.
void	process(I image, D derivX, D derivY, D derivXX, D derivYY, D derivXY)	Computes the corner's intensity.

Methods inherited from class boofcv.abst.feature.detect.intensity.BaseGeneralFeatureIntensity

getDerivType, getImageType, getIntensity, init

Methods inherited from class java.lang.Object

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

Constructor Details

WrapperHessianThreeImageDetIntensity

public WrapperHessianThreeImageDetIntensity(Class<I> imageType)

Method Details

process

public void process(I image,
 @Nullable
 D derivX,
 @Nullable
 D derivY,
 @Nullable
 D derivXX,
 @Nullable
 D derivYY,
 @Nullable
 D derivXY)

Description copied from interface: GeneralFeatureIntensity

Computes the corner's intensity. Before computing the various image derivatives call GeneralFeatureIntensity.getRequiresGradient() and GeneralFeatureIntensity.getRequiresHessian() to see if they are needed.

Parameters:

image - Original input image

derivX - First derivative x-axis

derivY - First derivative x-axis

derivXX - Second derivative x-axis x-axis

derivYY - Second derivative x-axis y-axis

derivXY - Second derivative x-axis y-axis

getCandidatesMin

@Nullable
public @Nullable ListIntPoint2D getCandidatesMin()

Description copied from interface: GeneralFeatureIntensity

(Optional) Returns a list of candidate for local minimums.

Returns:

List of potential features. If not supported then null is returned.

getCandidatesMax

@Nullable
public @Nullable ListIntPoint2D getCandidatesMax()

Description copied from interface: GeneralFeatureIntensity

(Optional) Returns a list of candidate for local maximums.

Returns:

List of potential features. If not supported then null is returned.

getRequiresGradient

public boolean getRequiresGradient()

Description copied from interface: GeneralFeatureIntensity

If the image gradient is required for calculations.

Returns:

true if the image gradient is required.

getRequiresHessian

public boolean getRequiresHessian()

Description copied from interface: GeneralFeatureIntensity

Is the image's second derivative required?

Returns:

is the hessian required.

hasCandidates

public boolean hasCandidates()

Description copied from interface: GeneralFeatureIntensity

If true there is a list of candidate corners for minimums and/or maximums.

getIgnoreBorder

public int getIgnoreBorder()

Description copied from interface: GeneralFeatureIntensity

Pixels within this distance from the image border are not processed.

Returns:

Size of unprocessed border around the image.

localMinimums

public boolean localMinimums()

Description copied from interface: GeneralFeatureIntensity

Indicates if local minimums are features or not.

Returns:

true for local minimum features.

localMaximums

public boolean localMaximums()

Description copied from interface: GeneralFeatureIntensity

Indicates if local maximums are features or not.

Returns:

true for local maximum features.