org.openimaj.image.processing.algorithm

Class MeanCenter

java.lang.Object

org.openimaj.image.processing.algorithm.MeanCenter

All Implemented Interfaces:

ImageProcessor<FImage>, Processor<FImage>

public class MeanCenter
extends Object
implements ImageProcessor<FImage>

An ImageProcessor that computes the mean of the image's pixels and subtracts the mean from all pixels.

Author:

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

Constructor Summary

Constructors

Constructor and Description
MeanCenter()

Method Summary

Modifier and Type	Method and Description
static float	patchMean(float[][] data) same as patchMean(float[][], int, int, int, int) but the width and height are taken from data[0].length and data.length
static float	patchMean(float[][] data, int x, int y, int width, int height) Finds the mean value of a sub-patch of a 2D float array.
void	processImage(FImage image) Process an image.

Methods inherited from class java.lang.Object

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

Constructor Detail

MeanCenter

public MeanCenter()

Method Detail

processImage

public void processImage(FImage image)

Description copied from interface: ImageProcessor

Process an image. Implementing classes must alter the image passed in-place or assign the output to the input using Image.internalAssign(Image).

Specified by:

processImage in interface ImageProcessor<FImage>

Parameters:

image - The image to process in place.

patchMean

public static final float patchMean(float[][] data)

same as patchMean(float[][], int, int, int, int) but the width and height are taken from data[0].length and data.length

Parameters:

data -

Returns:

the patch mean

patchMean

public static final float patchMean(float[][] data,
                                    int x,
                                    int y,
                                    int width,
                                    int height)

Finds the mean value of a sub-patch of a 2D float array.

Parameters:

data - the array

x - the location of the sub-patch

y - the location of the sub-patch

width - sub-patch width

height - sub-patch height

Returns:

the mean value