org.openimaj.image.processing.convolution

Class CLSobel

java.lang.Object

org.openimaj.image.processing.CLImageAnalyser<FImage>

org.openimaj.image.processing.convolution.CLSobel

All Implemented Interfaces:

ImageAnalyser<FImage>

public class CLSobel
extends CLImageAnalyser<FImage>

OpenCL implementation of a 3x3 Sobel operator. Computes the magnitude, orientation and gradients (in x & y) in parallel.

Author:

Jonathon Hare (jsh2@ecs.soton.ac.uk)

Field Summary

Fields

Modifier and Type	Field and Description
FImage	gradientX The computed Sobel gradient in the X direction
FImage	gradientY The computed Sobel gradient in the Y direction
FImage	magnitude The computed Sobel magnitude
FImage	orientation The computed Sobel orientations

Fields inherited from class org.openimaj.image.processing.CLImageAnalyser

context, kernel

Constructor Summary

Constructors

Constructor and Description
CLSobel() Default Constructor
CLSobel(com.nativelibs4java.opencl.CLContext ctx) Construct with context.

Method Summary

Modifier and Type	Method and Description
void	analyseImage(FImage image) Analyse an image.
FImage	getGradientX()
FImage	getGradientY()
FImage	getMagnitude()
FImage	getOrientation()

Methods inherited from class java.lang.Object

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

Field Detail

magnitude

public FImage magnitude

The computed Sobel magnitude

orientation

public FImage orientation

The computed Sobel orientations

gradientX

public FImage gradientX

The computed Sobel gradient in the X direction

gradientY

public FImage gradientY

The computed Sobel gradient in the Y direction

Constructor Detail

CLSobel

public CLSobel()

Default Constructor

CLSobel

public CLSobel(com.nativelibs4java.opencl.CLContext ctx)

Construct with context.

Parameters:

ctx - the context

Method Detail

analyseImage

public void analyseImage(FImage image)

Description copied from interface: ImageAnalyser

Analyse an image.

Parameters:

image - The image to process in place.

getMagnitude

public FImage getMagnitude()

Returns:

the magnitude

getOrientation

public FImage getOrientation()

Returns:

the orientation

getGradientX

public FImage getGradientX()

Returns:

the gradientX

getGradientY

public FImage getGradientY()

Returns:

the gradientY