com.jhlabs.image
Class DisplaceFilter

java.lang.Object
  com.jhlabs.image.AbstractBufferedImageOp
      com.jhlabs.image.TransformFilter
          com.jhlabs.image.DisplaceFilter

All Implemented Interfaces:

BufferedImageOp, Cloneable

public class DisplaceFilter
extends TransformFilter

A filter which simulates the appearance of looking through glass. A separate grayscale displacement image is provided and pixels in the source image are displaced according to the gradient of the displacement map.

Field Summary

Fields inherited from class com.jhlabs.image.TransformFilter

BILINEAR, CLAMP, edgeAction, interpolation, NEAREST_NEIGHBOUR, originalSpace, RGB_CLAMP, transformedSpace, WRAP, ZERO

Constructor Summary

DisplaceFilter()

Method Summary

BufferedImage	filter(BufferedImage src, BufferedImage dst)
float	getAmount() Get the amount of distortion.
BufferedImage	getDisplacementMap() Get the displacement map.
void	setAmount(float amount) Set the amount of distortion.
void	setDisplacementMap(BufferedImage displacementMap) Set the displacement map.
String	toString()
protected void	transformInverse(int x, int y, float[] out) Inverse transform a point.

Methods inherited from class com.jhlabs.image.TransformFilter

filterPixelsNN, getEdgeAction, getInterpolation, setEdgeAction, setInterpolation, transformSpace

Methods inherited from class com.jhlabs.image.AbstractBufferedImageOp

clone, createCompatibleDestImage, getBounds2D, getPoint2D, getRenderingHints, getRGB, setRGB

Methods inherited from class java.lang.Object

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

Constructor Detail

DisplaceFilter

public DisplaceFilter()

Method Detail

setDisplacementMap

public void setDisplacementMap(BufferedImage displacementMap)

Set the displacement map.

Parameters:

displacementMap - an image representing the displacment at each point

See Also:

getDisplacementMap()

getDisplacementMap

public BufferedImage getDisplacementMap()

Get the displacement map.

Returns:

an image representing the displacment at each point

See Also:

setDisplacementMap(java.awt.image.BufferedImage)

setAmount

public void setAmount(float amount)

Set the amount of distortion.

Parameters:

amount - the amount

See Also:

getAmount()

getAmount

public float getAmount()

Get the amount of distortion.

Returns:

the amount

See Also:

setAmount(float)

filter

public BufferedImage filter(BufferedImage src,
                            BufferedImage dst)

Specified by:

filter in interface BufferedImageOp

Overrides:

filter in class TransformFilter

transformInverse

protected void transformInverse(int x,
                                int y,
                                float[] out)

Description copied from class: TransformFilter

Inverse transform a point. This method needs to be overriden by all subclasses.

Specified by:

transformInverse in class TransformFilter

Parameters:

x - the X position of the pixel in the output image

y - the Y position of the pixel in the output image

out - the position of the pixel in the input image

toString

public String toString()

Overrides:

toString in class Object