org.openimaj.demos.video

Class VideoFeatureExtraction

java.lang.Object

org.openimaj.demos.video.VideoFeatureExtraction

All Implemented Interfaces:

KeyListener, EventListener, VideoDisplayListener<MBFImage>

public class VideoFeatureExtraction
extends Object
implements VideoDisplayListener<MBFImage>, KeyListener

Demonstration of different feature extraction techniques that produce a single global histogram for a given image. Currently this includes RGB and HSV colour histograms, and a simple SIFT-based Bag of Visual Words. The demo opens the first webcam and displays a histogram of features. Press the space bar to toggle between the different feature types.

Author:

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

Constructor Summary

Constructors

Constructor and Description
VideoFeatureExtraction(JComponent window) Default constructor

Method Summary

Modifier and Type	Method and Description
void	afterUpdate(VideoDisplay<MBFImage> display) Called when the video display is updated and the next frame is displayed
void	beforeUpdate(MBFImage frame) Called when the video is about to update
void	keyPressed(KeyEvent e)
void	keyReleased(KeyEvent e)
void	keyTyped(KeyEvent e)
static void	main(String[] args) Default main

Methods inherited from class java.lang.Object

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

Constructor Detail

VideoFeatureExtraction

public VideoFeatureExtraction(JComponent window)
                       throws IOException

Default constructor

Parameters:

window - The window to display the demo in

Throws:

IOException

Method Detail

afterUpdate

public void afterUpdate(VideoDisplay<MBFImage> display)

Description copied from interface: VideoDisplayListener

Called when the video display is updated and the next frame is displayed

Specified by:

afterUpdate in interface VideoDisplayListener<MBFImage>

Parameters:

display - the video display

beforeUpdate

public void beforeUpdate(MBFImage frame)

Description copied from interface: VideoDisplayListener

Called when the video is about to update

Specified by:

beforeUpdate in interface VideoDisplayListener<MBFImage>

Parameters:

frame - the frame about to be displayed

keyTyped

public void keyTyped(KeyEvent e)

Specified by:

keyTyped in interface KeyListener

keyPressed

public void keyPressed(KeyEvent e)

Specified by:

keyPressed in interface KeyListener

keyReleased

public void keyReleased(KeyEvent e)

Specified by:

keyReleased in interface KeyListener

main

public static void main(String[] args)
                 throws IOException

Default main

Parameters:

args - Command-line arguments

Throws:

IOException