EdgeMap (Interface Manipulation Package)

[using it]

Interface Manipulation Package v4.0 (2008-06-25)

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imp.ima.util
Class EdgeMap

java.lang.Object
  imp.ima.util.RgbFilter
      imp.ima.util.EdgeMap

Defines and Component/Magnitude/Orientation RGB filter.

Here the squared J^T J of the Jacobian J = d (r,g,b)^T / d (x,y)^T is used as edge function.

Nested Class Summary
`static class`	`EdgeMap.Contrast` Defines a simple contrast (Mexican-hat) operator on the blue channel.

Field Summary
`int[]`	`edges` Gradient magnitude with non maxima suppression of the edges previously filtered.
`double[]`	`Ia` Gradient orientation (in radian) of the edges previously filtered.
`double[]`	`In` Gradient magnitude of the edges previously filtered.
`double[]`	`Ix` Gradient horizontal component of the edges previously filtered.
`double[]`	`Iy` Gradient vertical component of the edges previously filtered.

Constructor Summary
`EdgeMap(int threshold)` Creates an edge filter.

Method Summary

Methods inherited from class imp.ima.util.RgbFilter
`filterChannel, getChannel, getChannel, getRGB`

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

public int[] edges

Gradient magnitude with non maxima suppression of the edges previously filtered.

public double[] Ia

Gradient orientation (in radian) of the edges previously filtered.

public double[] In

Gradient magnitude of the edges previously filtered.

public double[] Ix

Gradient horizontal component of the edges previously filtered.

public double[] Iy

Gradient vertical component of the edges previously filtered.

Constructor Detail

public EdgeMap(int threshold)

Creates an edge filter.

Parameters:: threshold - [optional, default is 10] Edge map border value.