boofcv.struct.pyramid

Class PyramidDiscrete<T extends ImageGray>

java.lang.Object

boofcv.struct.pyramid.ImagePyramidBase<T>

boofcv.struct.pyramid.PyramidDiscrete<T>

All Implemented Interfaces:

ImagePyramid<T>

Direct Known Subclasses:

PyramidDiscreteAverage, PyramidDiscreteSampleBlur

public abstract class PyramidDiscrete<T extends ImageGray>
extends ImagePyramidBase<T>

In this implementation the scale factor between each layer is limited to being a positive integer that is evenly divisible by the previous layer. This added constraint allows further optimization to be performed.

Field Summary

Fields

Modifier and Type	Field and Description
int[]	scale

Fields inherited from class boofcv.struct.pyramid.ImagePyramidBase

bottomHeight, bottomWidth, generator, layers, saveOriginalReference

Constructor Summary

Constructors

Constructor and Description
PyramidDiscrete(java.lang.Class<T> imageType, boolean saveOriginalReference, int... scaleFactors) Specifies input image size and behavior of top most layer.

Method Summary

Modifier and Type	Method and Description
int	getNumLayers() Returns the number of layers in the pyramid.
double	getScale(int layer) Returns the scale of the specified layer in the pyramid.
int[]	getScales()
void	setScaleFactors(int... scaleFactors) Specifies the pyramid's structure.

Methods inherited from class boofcv.struct.pyramid.ImagePyramidBase

checkScales, getHeight, getImageType, getInputHeight, getInputWidth, getLayer, getWidth, initialize, isSaveOriginalReference, setFirstLayer, setTo

Methods inherited from class java.lang.Object

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

Methods inherited from interface boofcv.struct.pyramid.ImagePyramid

getSampleOffset, getSigma, process

Field Detail

scale

public int[] scale

Constructor Detail

PyramidDiscrete

public PyramidDiscrete(java.lang.Class<T> imageType,
                       boolean saveOriginalReference,
                       int... scaleFactors)

Specifies input image size and behavior of top most layer.

Parameters:

imageType - Type of image.

saveOriginalReference - If a reference to the full resolution image should be saved instead of copied. Set to false if you don't know what you are doing.

scaleFactors - (optional) Specifies the scale of each layer in the pyramid. See restrictions on scaleFactor in setScaleFactors(int...).

Method Detail

setScaleFactors

public void setScaleFactors(int... scaleFactors)

Specifies the pyramid's structure. Scale factors are in relative to the input image.

Parameters:

scaleFactors - Change in scale factor for each layer in the pyramid.

getScales

public int[] getScales()

getScale

public double getScale(int layer)

Description copied from interface: ImagePyramid

Returns the scale of the specified layer in the pyramid. Larger the scale smaller the image is relative to the input image.

Parameters:

layer - Which layer is being inspected.

Returns:

The layer's scale.

getNumLayers

public int getNumLayers()

Description copied from interface: ImagePyramid

Returns the number of layers in the pyramid.