Facemorph.psm
Class SteerablePyramid

java.lang.Object
  Facemorph.psm.SteerablePyramid

public class SteerablePyramid
extends java.lang.Object

Implementation of Steerable pyramid

Constructor Summary

SteerablePyramid()

Method Summary

void	buildPyramid(FloatImage fimg, java.util.ArrayList<Filter> filters, Filter lowpassFilter, int maxLev) Build a pyramid from and image
FloatImage	getLinearCombination(float[] weights, int level) Get a linear combination of different subbands in the same level
FloatImage	getLowpass() Get the lowpass component
SteerablePyramid	getReweightedPyramid(java.util.ArrayList<float[]> weights) Get a pyramid formed as a weighted linear combination of subbands
FloatImage	getSubband(int i) Get subband i

Methods inherited from class java.lang.Object

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

Constructor Detail

SteerablePyramid

public SteerablePyramid()

Method Detail

buildPyramid

public void buildPyramid(FloatImage fimg,
                         java.util.ArrayList<Filter> filters,
                         Filter lowpassFilter,
                         int maxLev)

Build a pyramid from and image

Parameters:

fimg - the image

filters - the set of filters to use a each scale

lowpassFilter - the low pass filter to start a new pyramid level

maxLev - the maximum levels to build

getLinearCombination

public FloatImage getLinearCombination(float[] weights,
                                       int level)
                                throws java.lang.RuntimeException

Get a linear combination of different subbands in the same level

Parameters:

weights - the weight for each subband

level - the level to work at

Returns:

return the linear combination

Throws:

java.lang.RuntimeException

getReweightedPyramid

public SteerablePyramid getReweightedPyramid(java.util.ArrayList<float[]> weights)

Get a pyramid formed as a weighted linear combination of subbands

Parameters:

weights - the weights

Returns:

return the weighted combinations pyramid

getSubband

public FloatImage getSubband(int i)

Get subband i

Parameters:

i - the index

Returns:

return the subband i

getLowpass

public FloatImage getLowpass()

Get the lowpass component

Returns:

returns the lowpass component