RgbDiffusionFilter (Interface Manipulation Package)

[using it]

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

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imp.ima.util
Class RgbDiffusionFilter

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

Direct Known Subclasses:: AnisotropicDiffusion, IsotropicDiffusion, WinnerTakeAll

public class RgbDiffusionFilter
extends RgbFilter
extends RgbFilter

Encapsulates a RGB color image diffusion filter.

Constructor Summary
`RgbDiffusionFilter(boolean channel, int borderSize, int borderValue)` Creates a RgbDiffusionFilter.

Method Summary
`static int[]`	`double2int(double[] src, int[] dst)` Converts doubles to integers between [0-255].
`double`	`getChannel(int ij, int width, int[] src0, double[] src)` Defines the filter iterative operation at the red-green-blue pixel neighborhood level.
`int`	`getRGB(int ij, int width, int[] red0, int[] green0, int[] blue0, int[] red, int[] green, int[] blue)` Defines the filter iterative operation at the RGB pixel neighborhood level.
`static double[]`	`int2double(int[] src, double[] dst)` Converts integers to doubles.
`boolean`	`more(int iteration, double[] dst, int width, int height)` Returns true if the channel diffusion process should carry on, false it it has converged Diffusion filters overwrite this method.
`boolean`	`more(int iteration, int[] rgb, int width, int height)` Returns true if the RGB diffusion process should carry on, false it it has converged Diffusion filters overwrite this method.

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

Constructor Detail

RgbDiffusionFilter

public RgbDiffusionFilter(boolean channel,
                          int borderSize,
                          int borderValue)

Creates a RgbDiffusionFilter.

Parameters:: channel - [optional, default is false] If true filter each red-green-blue channel, else filter the RGB pixel.; borderSize - [optional, default is 0] Border size: width/height in pixel on the image border where the filter must not be computed.; borderValue - [optional, default is 0] Border RGB value: value to be set on border where the filter is not computed.

Method Detail

double2int

public static int[] double2int(double[] src,
                               int[] dst)

Converts doubles to integers between [0-255].

Parameters:: src - Source buffer.; dst - [optional, default is null] Optional destination buffer, if null or omitted the destination buffer is created.
Returns:: The destination buffer.

getChannel

public double getChannel(int ij,
                         int width,
                         int[] src0,
                         double[] src)

Defines the filter iterative operation at the red-green-blue pixel neighborhood level.

Filters with a border defined on each red-green-blue value overwrite this method.

Parameters:: ij - Buffer index with pixels[i,j] = pixels[ij = i + j * width]; width - Buffer width.; src0 - Initial red/green/blue channel buffer.; src - Current (at iteration n) red/green/blue channel buffer.

getRGB

public int getRGB(int ij,
                  int width,
                  int[] red0,
                  int[] green0,
                  int[] blue0,
                  int[] red,
                  int[] green,
                  int[] blue)

Defines the filter iterative operation at the RGB pixel neighborhood level.

Filters with a border defined on each RGB pixel overwrite this method.

Parameters:: ij - Buffer index with pixels[i,j] = pixels[ij = i + j * width]; width - Buffer width.; red0 - Initial red channel buffer.; green0 - Initial green channel buffer.; blue0 - Initial blue channel buffer.; red - Current (at iteration n) red channel buffer.; green - Current (at iteration n) green channel buffer.; blue - Current (at iteration n) blue channel buffer.

int2double

public static double[] int2double(int[] src,
                                  double[] dst)

Converts integers to doubles.

Parameters:: src - Source buffer.; dst - [optional, default is null] Optional destination buffer, if null or omitted the destination buffer is created.
Returns:: The destination buffer.

public boolean more(int iteration,
                    double[] dst,
                    int width,
                    int height)

Returns true if the channel diffusion process should carry on, false it it has converged

Diffusion filters overwrite this method.

Parameters:: iteration - Iteration number;; dst - Last iteration result.; width - Buffer width.; height - Buffer height.

public boolean more(int iteration,
                    int[] rgb,
                    int width,
                    int height)

Returns true if the RGB diffusion process should carry on, false it it has converged