boofcv.alg.feature.describe

Class DescribePointPixelRegionNCC<T extends boofcv.struct.image.ImageGray>

java.lang.Object

boofcv.alg.feature.describe.DescribePointRectangleRegion<T>

boofcv.alg.feature.describe.DescribePointPixelRegionNCC<T>

Direct Known Subclasses:

ImplDescribePointPixelRegionNCC_F32, ImplDescribePointPixelRegionNCC_U8

public abstract class DescribePointPixelRegionNCC<T extends boofcv.struct.image.ImageGray>
extends DescribePointRectangleRegion<T>

Describes a rectangular region using its raw pixel intensities which have been normalized for intensity. This allows the descriptor to be light invariant. The entire region must be inside the image for a descriptor to be computed because any outside values will change its intensity normalization.

See Also:

DescriptorDistance.ncc(boofcv.struct.feature.NccFeature, boofcv.struct.feature.NccFeature)

Field Summary

Fields inherited from class boofcv.alg.feature.describe.DescribePointRectangleRegion

image, offset, radiusHeight, radiusWidth, regionHeight, regionWidth

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	DescribePointPixelRegionNCC(int regionWidth, int regionHeight)

Method Summary

Modifier and Type	Method and Description
boolean	isInBounds(int c_x, int c_y) The entire region must be inside the image because any outside pixels will change the statistics
abstract void	process(int c_x, int c_y, NccFeature desc) Extracts the descriptor at the specified location.

Methods inherited from class boofcv.alg.feature.describe.DescribePointRectangleRegion

getDescriptorLength, getRegionHeight, getRegionWidth, setImage

Methods inherited from class java.lang.Object

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

Constructor Detail

DescribePointPixelRegionNCC

protected DescribePointPixelRegionNCC(int regionWidth,
                                      int regionHeight)

Method Detail

isInBounds

public boolean isInBounds(int c_x,
                          int c_y)

The entire region must be inside the image because any outside pixels will change the statistics

process

public abstract void process(int c_x,
                             int c_y,
                             NccFeature desc)

Extracts the descriptor at the specified location.

Parameters:

c_x - Center of the descriptor region.

c_y - Center of the descriptor region.

desc - Where the description is written to.