org.openimaj.image.processing.convolution

Class FSobel

java.lang.Object

org.openimaj.image.processing.convolution.FSobel

All Implemented Interfaces:

ImageAnalyser<FImage>

public class FSobel
extends Object
implements ImageAnalyser<FImage>

Helper ImageAnalyser that computes the X and Y image gradients using Sobel filters. Optionally, the input image can be blurred first using a Gaussian.

Author:

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

Field Summary

Fields

Modifier and Type	Field and Description
FImage	dx The X gradients
FImage	dy The Y gradients

Constructor Summary

Constructors

Constructor and Description
FSobel() Construct with no Gaussian blurring
FSobel(float sigma) Construct with an initial Gaussian blurring of the given standard deviation.

Method Summary

Modifier and Type	Method and Description
void	analyseImage(FImage image) Analyse an image.

Methods inherited from class java.lang.Object

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

Field Detail

dx

public FImage dx

The X gradients

dy

public FImage dy

The Y gradients

Constructor Detail

FSobel

public FSobel()

Construct with no Gaussian blurring

FSobel

public FSobel(float sigma)

Construct with an initial Gaussian blurring of the given standard deviation.

Parameters:

sigma - the standard deviation of the Gaussian blur

Method Detail

analyseImage

public void analyseImage(FImage image)

Description copied from interface: ImageAnalyser

Analyse an image.

Specified by:

analyseImage in interface ImageAnalyser<FImage>

Parameters:

image - The image to process in place.