stream.image.features

Class CenterOfMass

java.lang.Object

stream.AbstractProcessor

stream.image.AbstractImageProcessor

stream.image.features.CenterOfMass

All Implemented Interfaces:

ImageProcessor, stream.Processor, stream.StatefulProcessor

public class CenterOfMass
extends AbstractImageProcessor

This processor calculates the Center of mass of one ColorChannel of the Image. You can either ask for the absolute x- and y-Coordinates of the Center of Mass or the normalized Center of Mass (= absolute Center of Mass / the size of the image).

Author:

Matthias

Field Summary

Fields inherited from class stream.image.AbstractImageProcessor

imageKey

Fields inherited from class stream.AbstractProcessor

context

Fields inherited from interface stream.image.ImageProcessor

DEFAULT_IMAGE_KEY

Constructor Summary

Constructors

Constructor and Description
CenterOfMass()

Method Summary

Methods

Modifier and Type	Method and Description
String	getColorchannel() Delivers, on which color the Center of Mass computation is based on.
Boolean	getNormalized() Delivers, if the CenterOfMass processor is actually looking for the absolute or the normalized x- and y- coordinates of the Center of Mass.
stream.Data	process(stream.Data item, ImageRGB img)
void	setColorchannel(String colorchannel) Tells the CenterOfMass processor, on which color to base the Center of Mass computation on.
void	setNormalized(Boolean normalized) Tells the CenterOfMass processor, if we are looking for the absolute or the normalized x- and y- coordinates of the Center of Mass.

Methods inherited from class stream.image.AbstractImageProcessor

getImage, process, setImage

Methods inherited from class stream.AbstractProcessor

finish, init, resetState

Methods inherited from class java.lang.Object

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

Constructor Detail

CenterOfMass

public CenterOfMass()

Method Detail

setColorchannel

@Parameter(description="Sets the color channel, on which the Center of Mass computation is based on.")
public void setColorchannel(String colorchannel)

Tells the CenterOfMass processor, on which color to base the Center of Mass computation on.

Parameters:

colorchannel - the color. Possible values are "red", "green", and "blue"

getColorchannel

public String getColorchannel()

Delivers, on which color the Center of Mass computation is based on.

Returns:

the actual color. Possible values are "red", "green", and "blue"

setNormalized

@Parameter(description="Sets, if the processor computes the normalized Center of Mass or the absolute Center of Mass")
public void setNormalized(Boolean normalized)

Tells the CenterOfMass processor, if we are looking for the absolute or the normalized x- and y- coordinates of the Center of Mass.

Parameters:

normalized -

getNormalized

public Boolean getNormalized()

Delivers, if the CenterOfMass processor is actually looking for the absolute or the normalized x- and y- coordinates of the Center of Mass.

Returns:

process

public stream.Data process(stream.Data item,
                  ImageRGB img)

Specified by:

process in interface ImageProcessor

Specified by:

process in class AbstractImageProcessor