org.openimaj.image.model.patch

Class HistogramPatchModel

java.lang.Object

org.openimaj.image.model.patch.PatchClassificationModel<Float[],MBFImage>

org.openimaj.image.model.patch.MBFPatchClassificationModel

org.openimaj.image.model.patch.HistogramPatchModel

All Implemented Interfaces:

Serializable, Cloneable, ImageClassificationModel<MBFImage>, EstimatableModel<MBFImage,FImage>, Model<MBFImage,FImage>

public class HistogramPatchModel
extends MBFPatchClassificationModel

A MBFPatchClassificationModel that performs classification based on the joint (colour) histogram of the patch by comparing the patch histogram to a model histogram with a given comparison measure.

Author:

Jonathon Hare (jsh2@ecs.soton.ac.uk)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected DoubleFVComparison	compare
HistogramModel	model The model histogram; public for speed.

Fields inherited from class org.openimaj.image.model.patch.MBFPatchClassificationModel

ndims

Fields inherited from class org.openimaj.image.model.patch.PatchClassificationModel

patchHeight, patchWidth

Constructor Summary

Constructors

Constructor and Description
HistogramPatchModel(int patchWidth, int patchHeight, DoubleFVComparison compare, int... nbins) Construct with the given patch size, comparison measure and ] number of histogram bins per dimension.
HistogramPatchModel(int patchWidth, int patchHeight, int... nbins) Construct with the given patch size and number of histogram bins per dimension.

Method Summary

Modifier and Type	Method and Description
float	classifyPatch(MBFImage patch) Classify a patch, returning the probability of the central pixel belonging to the class.
HistogramPatchModel	clone() Clone the model
DoubleFVComparison	getComparisonMeasure()
void	learnModel(MBFImage... images) Learn the model from the given MBFImages.
void	setComparisonMeasure(DoubleFVComparison compare) Set the comparison measure used.

Methods inherited from class org.openimaj.image.model.patch.MBFPatchClassificationModel

getArray

Methods inherited from class org.openimaj.image.model.patch.PatchClassificationModel

classifyImage, estimate, numItemsToEstimate, predict

Methods inherited from class java.lang.Object

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

Field Detail

model

public HistogramModel model

The model histogram; public for speed.

compare

protected DoubleFVComparison compare

Constructor Detail

HistogramPatchModel

public HistogramPatchModel(int patchWidth,
                           int patchHeight,
                           int... nbins)

Construct with the given patch size and number of histogram bins per dimension. Uses DoubleFVComparison.BHATTACHARYYA as the comparison measure.

Parameters:

patchWidth - patch width.

patchHeight - patch height.

nbins - number of bins per dimension.

HistogramPatchModel

public HistogramPatchModel(int patchWidth,
                           int patchHeight,
                           DoubleFVComparison compare,
                           int... nbins)

Construct with the given patch size, comparison measure and ] number of histogram bins per dimension.

Parameters:

patchWidth - patch width.

patchHeight - patch height.

compare - comparison measure.

nbins - number of bins per dimension.

Method Detail

getComparisonMeasure

public DoubleFVComparison getComparisonMeasure()

Returns:

the comparison measure

setComparisonMeasure

public void setComparisonMeasure(DoubleFVComparison compare)

Set the comparison measure used.

Parameters:

compare - the new comparison measure.

classifyPatch

public float classifyPatch(MBFImage patch)

Description copied from class: PatchClassificationModel

Classify a patch, returning the probability of the central pixel belonging to the class.

Specified by:

classifyPatch in class PatchClassificationModel<Float[],MBFImage>

Parameters:

patch - the patch.

Returns:

the probability of the central pixel belonging to the class.

clone

public HistogramPatchModel clone()

Description copied from interface: EstimatableModel

Clone the model

Specified by:

clone in interface ImageClassificationModel<MBFImage>

Specified by:

clone in interface EstimatableModel<MBFImage,FImage>

Specified by:

clone in class PatchClassificationModel<Float[],MBFImage>

Returns:

a cloned copy

learnModel

public void learnModel(MBFImage... images)

Description copied from interface: ImageClassificationModel

Learn the model from the given MBFImages.

Parameters:

images - the images to learn from