Package boofcv.alg.feature.detect.selector

Class FeatureSelectUniform<Point>

java.lang.Object

boofcv.alg.feature.detect.selector.FeatureSelectUniform<Point>

All Implemented Interfaces:

FeatureSelectLimit<Point>

Direct Known Subclasses:

FeatureSelectUniform.F32, FeatureSelectUniform.F64, FeatureSelectUniform.I16

public abstract class FeatureSelectUniform<Point>
extends Object
implements FeatureSelectLimit<Point>

Attempts to select features uniformly across the image. This is done by breaking the image up into a grid and selecting a specific number randomly from each grid cell.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	FeatureSelectUniform.F32	Implementation for Point2D_F32
static class	FeatureSelectUniform.F64	Implementation for Point2D_F64
static class	FeatureSelectUniform.I16	Implementation for Point2D_I16
static class	FeatureSelectUniform.Info<Point>	Info for each cell

Field Summary

Fields

Modifier and Type	Field	Description
ConfigGridUniform	configUniform	Configuration for uniformly selecting a grid
Random	rand

Constructor Summary

Constructors

Constructor	Description
FeatureSelectUniform()

Method Summary

Modifier and Type	Method	Description
protected abstract FeatureSelectUniform.Info<Point>	getGridCell(Point p)	Returns the grid cell that contains the point
void	select(int imageWidth, int imageHeight, @Nullable FastAccess<Point> prior, FastAccess<Point> detected, int limit, FastArray<Point> selected)	Selects features inside the image.

Methods inherited from class java.lang.Object

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

Field Details

configUniform

public ConfigGridUniform configUniform

Configuration for uniformly selecting a grid

rand

public Random rand

Constructor Details

FeatureSelectUniform

public FeatureSelectUniform()

Method Details

select

public void select(int imageWidth,
 int imageHeight,
 @Nullable
 @Nullable FastAccess<Point> prior,
 FastAccess<Point> detected,
 int limit,
 FastArray<Point> selected)

Description copied from interface: FeatureSelectLimit

Selects features inside the image.

Specified by:

select in interface FeatureSelectLimit<Point>

Parameters:

imageWidth - Width of the image the features were detected in

imageHeight - Height of the image the features were detected in

prior - (Input) Locations of previously detected features

detected - (Input) Locations of newly detected features

limit - (Input) The maximum number of new features detected

selected - (Output) Selected features. Element count not exceed the limit. Reset on every call.

getGridCell

protected abstract FeatureSelectUniform.Info<Point> getGridCell(Point p)

Returns the grid cell that contains the point