Package boofcv.alg.feature.describe

Class DescribePointPixelRegionNCC<T extends ImageGray<T>>

java.lang.Object

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

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

Direct Known Subclasses:

ImplDescribePointPixelRegionNCC_F32, ImplDescribePointPixelRegionNCC_U8

public abstract class DescribePointPixelRegionNCC<T extends ImageGray<T>>
extends DescribePointRawPixelsRectangle<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.DescribePointRawPixelsRectangle

image, offset, radiusHeight, radiusWidth, regionHeight, regionWidth

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	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.DescribePointRawPixelsRectangle

getDescriptorLength, getRegionHeight, getRegionWidth, setImage

Methods inherited from class java.lang.Object

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

Constructor Details

DescribePointPixelRegionNCC

protected DescribePointPixelRegionNCC(int regionWidth,
 int regionHeight)

Method Details

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.