features.filterBanks
Class Canny

java.lang.Object
  features.filterBanks.FilterBank
      features.filterBanks.Canny

public class Canny
extends FilterBank

This class implements a filterbank for computing hessian eigenvalues at different scales. Copyright (c) 1999-2005, Michael Abramoff. All rights reserved.

Field Summary

Fields inherited from class features.filterBanks.FilterBank

OPPONENCIES

Constructor Summary

Canny(float[] scales, int[] channels)

Method Summary

Feature	filter(int filternumber, int[] image, int width, java.lang.String extraText) Apply a filter to the image.
int	getNumber() Return the number of filters in this filter bank.
static java.lang.String	name(double scale, int color, java.lang.String extraText)
java.lang.String	name(int filternumber, java.lang.String preString) Get the feature name for filternumber.

Methods inherited from class features.filterBanks.FilterBank

scaleSet, thetaSet

Methods inherited from class java.lang.Object

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

Constructor Detail

Canny

public Canny(float[] scales,
             int[] channels)

Method Detail

getNumber

public int getNumber()

Return the number of filters in this filter bank.

Specified by:

getNumber in class FilterBank

name

public java.lang.String name(int filternumber,
                             java.lang.String preString)

Description copied from class: FilterBank

Get the feature name for filternumber.

Specified by:

name in class FilterBank

name

public static java.lang.String name(double scale,
                                    int color,
                                    java.lang.String extraText)

filter

public Feature filter(int filternumber,
                      int[] image,
                      int width,
                      java.lang.String extraText)
               throws java.lang.Exception

Apply a filter to the image. The filter is determined by the filternumber which indicates which scale, and color to use. filternumber is a consecutive number that identifies a filter with a specific scale, derivative order and orientation.

Throws:

java.lang.Exception