I am trying to implement a feature where the program plays a video in fullscreen when there is no mouseclick or mousemove, say for x seconds. and stops the video and go back to previous scene when mouse is clicked or moved
currently i have this one working.. BUT the video plays after 5 seconds even though i click and move the mouse.. and I can't seem to find a solution on how to close the video and proceed to the previous scene/fxml when mouse is clicked move..
current code as of writing:
for playing video when mouse is idle:
PauseTransition delay = new PauseTransition(Duration.seconds(5));
delay.setOnFinished( event -> {
try {
Main.showVideo();
} catch (IOException ex) {
Logger.getLogger(UserMainPage2Controller.class.getName()).log(Level.SEVERE, null, ex);
}
} );
delay.play();
for showing video (located inside my main class):
public static void showVideo() throws IOException
{
File f = new File("C:\\vid\\saitama.mp4");
Media media = new Media(f.toURI().toString());
MediaView mv = new MediaView();
MediaPlayer mp = new MediaPlayer(media);
mv.setMediaPlayer(mp);
FXMLLoader loader=new FXMLLoader();
loader.setLocation(Main.class.getResource("page/videoPlayer.fxml"));
mainLayout = loader.load();
StackPane root=new StackPane();
root.getChildren().add(mv);
stage.setScene(new Scene(root,1000,1000));
stage.setTitle("Video");
stage.setFullScreen(true);
stage.show();
mp.play();
}
and im not really sure what to put inside my VideoPlayercontroller class either:
right now it is empty.
public class VideoPlayerController implements Initializable {
#Override
public void initialize(URL url, ResourceBundle rb) {
}
}
So what im trying to do is only play the video when mouse is idle (not clicked or moved for x seconds).. and closes the video when the mouse is moved or click..
like for example..
if mouseclicked then Main.showPreviousScene();
May be an issue that your delay is happening every time 5 seconds after first movement but not being updated before its elapsed. Try using timers instead so that you set the timer to 5 seconds on mouse moved event on timer elapsed event set the video to play.
I'm developing a Java desktop application and can not find a way to record webcam video. I began using the Sarxos library to detect the connected cameras and to preview any you choose. But to get to the part of video recording in the example Xuggler is used, which is deprecated and not even you can download .. Somewhere I read that uses Humble-video, but the only example we have is to record screen, no camera ... Any help to find the way will be appreciated.
PS: I'm using JavaFX but if necessary I switch to Swing
This is a JavaCV implementation which maybe can help you:
import static com.googlecode.javacv.cpp.opencv_core.cvFlip;
import static com.googlecode.javacv.cpp.opencv_highgui.cvSaveImage;
import com.googlecode.javacv.CanvasFrame;
import com.googlecode.javacv.FrameGrabber;
import com.googlecode.javacv.VideoInputFrameGrabber;
import com.googlecode.javacv.cpp.opencv_core.IplImage;
public class GrabberShow implements Runnable {
//final int INTERVAL=1000;///you may use interval
IplImage image;
CanvasFrame canvas = new CanvasFrame("Web Cam");
public GrabberShow() {
canvas.setDefaultCloseOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
}
#Override
public void run() {
FrameGrabber grabber = new VideoInputFrameGrabber(0);
int i=0;
try {
grabber.start();
IplImage img;
while (true) {
img = grabber.grab();
if (img != null) {
cvFlip(img, img, 1);// l-r = 90_degrees_steps_anti_clockwise
cvSaveImage((i++)+"-capture.jpg", img);
// show image on window
canvas.showImage(img);
}
//Thread.sleep(INTERVAL);
}
} catch (Exception e) {
}
}
}
You can modify the codes and be able to save the images in regular interval and do rest of the processing you want.
And here you can find another tutorial what could also be an option:
Java Swing Program for capturing webcam
In my application there is a video button. Here's the code.
#Override
protected void onGUI1_Button1Action (Component c, ActionEvent event){
try {
String value = Capture.captureVideo();
if (value != null) {
final Form previous = Display.getInstance().getCurrent();
Form preview = new Form("Preview");
preview.setLayout(new BorderLayout());
MediaPlayer pl = new MediaPlayer();
if (!value.startsWith("file:/")) {
value = "file:/" + value;
}
pl.setDataSource(value);
preview.addComponent(BorderLayout.CENTER, pl);
preview.setBackCommand(new Command("Back") {
public void actionPerformed(ActionEvent evt) {
previous.showBack();
}
});
preview.show();
}
} catch (Exception ex) {
Log.e(ex);
Dialog.show("Error", "" + ex, "OK", null);
}
}
I picked up this code from github. I don't want to broadcast the video on full screen. I need a video from camera was built into some container. That container must cover only part of the screen. I have built a GUI and put a container(Media Player) into some part of screen.
How to change the code for this purpose?
You can place a camera view finder right into your app with a new cn1lib: https://github.com/codenameone/CameraKitCodenameOne
Overlaying native widgets has been possible for a year or so by now.
Original answer which was correct when it was written is below:
Embedding camera or overlaying component on the preview screen is not yet available in codename one.
This could be done using native interface with peer component. Have a look at how Native map was implemented here
I am writing an image library for fun and i came across a problem that i can't seem to solve. The class is pretty simple: take a picture, process it, display it through JFrame, and finally save it as a BufferedImage (javax.imageio.ImageIO). Here is what my picture looks like through the JFrame (this is my ColorEnhance class... on the Drustan nebula):
Here is what the saved version (a png, but all types ImageIO.write() supports look the same):
I'm not sure where the change occurs, but when I run this through my blur method entire lines appear from nothing in the png... Anyways, here is some code:
public void writeToFile(BufferedImage finalPic, String nameToAppend)
{
String temp=fileName.replace(".", nameToAppend+".");
String ext=fileName.substring(fileName.indexOf(".")+1);
File file=new File(temp);
try
{
ImageIO.write(finalPic, ext.toUpperCase(), file);
System.out.println("Successfully saved to: "+temp);
} catch (Exception e) { e.getMessage(); }
}
public void displayImage(String titleName)
{
ImageIcon icon = new ImageIcon(newPic);
JFrame frame = new JFrame(titleName);
JLabel label = new JLabel(icon);
label.setIcon(icon);
frame.getContentPane().add(label, BorderLayout.CENTER);
frame.setSize(WIDTH, HEIGHT+22);
frame.setVisible(true);
}
One last thing is that the save works for some processing classes better than others, if you need to see any more code just ask, thanks
Try using PNGImageEncoder from Apache XML Graphics Commons:
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
PNGImageEncoder encoder = new PNGImageEncoder(new FileOutputStream("file.png"), null);
encoder.encode((RenderedImage) image);
How can I continuously capture images from a webcam?
I want to experiment with object recognition (by maybe using java media framework).
I was thinking of creating two threads
one thread:
Node 1: capture live image
Node 2: save image as "1.jpg"
Node 3: wait 5 seconds
Node 4: repeat...
other thread:
Node 1: wait until image is captured
Node 2: using the "1.jpg" get colors
from every pixle
Node 3: save data in arrays
Node 4: repeat...
This JavaCV implementation works fine.
Code:
import org.bytedeco.javacv.*;
import org.bytedeco.opencv.opencv_core.IplImage;
import java.io.File;
import static org.bytedeco.opencv.global.opencv_core.cvFlip;
import static org.bytedeco.opencv.helper.opencv_imgcodecs.cvSaveImage;
public class Test implements Runnable {
final int INTERVAL = 100;///you may use interval
CanvasFrame canvas = new CanvasFrame("Web Cam");
public Test() {
canvas.setDefaultCloseOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
}
public void run() {
new File("images").mkdir();
FrameGrabber grabber = new OpenCVFrameGrabber(0); // 1 for next camera
OpenCVFrameConverter.ToIplImage converter = new OpenCVFrameConverter.ToIplImage();
IplImage img;
int i = 0;
try {
grabber.start();
while (true) {
Frame frame = grabber.grab();
img = converter.convert(frame);
//the grabbed frame will be flipped, re-flip to make it right
cvFlip(img, img, 1);// l-r = 90_degrees_steps_anti_clockwise
//save
cvSaveImage("images" + File.separator + (i++) + "-aa.jpg", img);
canvas.showImage(converter.convert(img));
Thread.sleep(INTERVAL);
}
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
Test gs = new Test();
Thread th = new Thread(gs);
th.start();
}
}
There is also post on configuration for JavaCV
You can modify the code and be able to save the images in regular interval and do rest of the processing you want.
Some time ago I've created generic Java library which can be used to take pictures with a PC webcam. The API is very simple, not overfeatured, can work standalone, but also supports additional webcam drivers like OpenIMAJ, JMF, FMJ, LTI-CIVIL, etc, and some IP cameras.
Link to the project is https://github.com/sarxos/webcam-capture
Example code (take picture and save in test.jpg):
Webcam webcam = Webcam.getDefault();
webcam.open();
BufferedImage image = webcam.getImage();
ImageIO.write(image, "JPG", new File("test.jpg"));
It is also available in Maven Central Repository or as a separate ZIP which includes all required dependencies and 3rd party JARs.
JMyron is very simple for use.
http://webcamxtra.sourceforge.net/
myron = new JMyron();
myron.start(imgw, imgh);
myron.update();
int[] img = myron.image();
Here is a similar question with some - yet unaccepted - answers. One of them mentions FMJ as a java alternative to JMF.
This kind of goes off of gt_ebuddy's answer using JavaCV, but my video output is at a much higher quality then his answer. I've also added some other random improvements (such as closing down the program when ESC and CTRL+C are pressed, and making sure to close down the resources the program uses properly).
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.image.BufferedImage;
import javax.swing.AbstractAction;
import javax.swing.ActionMap;
import javax.swing.InputMap;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.KeyStroke;
import com.googlecode.javacv.CanvasFrame;
import com.googlecode.javacv.OpenCVFrameGrabber;
import com.googlecode.javacv.cpp.opencv_core.IplImage;
public class HighRes extends JComponent implements Runnable {
private static final long serialVersionUID = 1L;
private static CanvasFrame frame = new CanvasFrame("Web Cam");
private static boolean running = false;
private static int frameWidth = 800;
private static int frameHeight = 600;
private static OpenCVFrameGrabber grabber = new OpenCVFrameGrabber(0);
private static BufferedImage bufImg;
public HighRes()
{
// setup key bindings
ActionMap actionMap = frame.getRootPane().getActionMap();
InputMap inputMap = frame.getRootPane().getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW);
for (Keys direction : Keys.values())
{
actionMap.put(direction.getText(), new KeyBinding(direction.getText()));
inputMap.put(direction.getKeyStroke(), direction.getText());
}
frame.getRootPane().setActionMap(actionMap);
frame.getRootPane().setInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW, inputMap);
// setup window listener for close action
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
stop();
}
});
}
public static void main(String... args)
{
HighRes webcam = new HighRes();
webcam.start();
}
#Override
public void run()
{
try
{
grabber.setImageWidth(frameWidth);
grabber.setImageHeight(frameHeight);
grabber.start();
while (running)
{
final IplImage cvimg = grabber.grab();
if (cvimg != null)
{
// cvFlip(cvimg, cvimg, 1); // mirror
// show image on window
bufImg = cvimg.getBufferedImage();
frame.showImage(bufImg);
}
}
grabber.stop();
grabber.release();
frame.dispose();
}
catch (Exception e)
{
e.printStackTrace();
}
}
public void start()
{
new Thread(this).start();
running = true;
}
public void stop()
{
running = false;
}
private class KeyBinding extends AbstractAction {
private static final long serialVersionUID = 1L;
public KeyBinding(String text)
{
super(text);
putValue(ACTION_COMMAND_KEY, text);
}
#Override
public void actionPerformed(ActionEvent e)
{
String action = e.getActionCommand();
if (action.equals(Keys.ESCAPE.toString()) || action.equals(Keys.CTRLC.toString())) stop();
else System.out.println("Key Binding: " + action);
}
}
}
enum Keys
{
ESCAPE("Escape", KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0)),
CTRLC("Control-C", KeyStroke.getKeyStroke(KeyEvent.VK_C, KeyEvent.CTRL_DOWN_MASK)),
UP("Up", KeyStroke.getKeyStroke(KeyEvent.VK_UP, 0)),
DOWN("Down", KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, 0)),
LEFT("Left", KeyStroke.getKeyStroke(KeyEvent.VK_LEFT, 0)),
RIGHT("Right", KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, 0));
private String text;
private KeyStroke keyStroke;
Keys(String text, KeyStroke keyStroke)
{
this.text = text;
this.keyStroke = keyStroke;
}
public String getText()
{
return text;
}
public KeyStroke getKeyStroke()
{
return keyStroke;
}
#Override
public String toString()
{
return text;
}
}
You can try Java Webcam SDK library also.
SDK demo applet is available at link.
I have used JMF on a videoconference application and it worked well on two laptops: one with integrated webcam and another with an old USB webcam. It requires JMF being installed and configured before-hand, but once you're done you can access the hardware via Java code fairly easily.
You can try Marvin Framework. It provides an interface to work with cameras. Moreover, it also provides a set of real-time video processing features, like object tracking and filtering.
Take a look!
Real-time Video Processing Demo:
http://www.youtube.com/watch?v=D5mBt0kRYvk
You can use the source below. Just save a frame using MarvinImageIO.saveImage() every 5 second.
Webcam video demo:
public class SimpleVideoTest extends JFrame implements Runnable{
private MarvinVideoInterface videoAdapter;
private MarvinImage image;
private MarvinImagePanel videoPanel;
public SimpleVideoTest(){
super("Simple Video Test");
videoAdapter = new MarvinJavaCVAdapter();
videoAdapter.connect(0);
videoPanel = new MarvinImagePanel();
add(videoPanel);
new Thread(this).start();
setSize(800,600);
setVisible(true);
}
#Override
public void run() {
while(true){
// Request a video frame and set into the VideoPanel
image = videoAdapter.getFrame();
videoPanel.setImage(image);
}
}
public static void main(String[] args) {
SimpleVideoTest t = new SimpleVideoTest();
t.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
For those who just want to take a single picture:
WebcamPicture.java
public class WebcamPicture {
public static void main(String[] args) {
try{
MarvinVideoInterface videoAdapter = new MarvinJavaCVAdapter();
videoAdapter.connect(0);
MarvinImage image = videoAdapter.getFrame();
MarvinImageIO.saveImage(image, "./res/webcam_picture.jpg");
} catch(MarvinVideoInterfaceException e){
e.printStackTrace();
}
}
}
I used Webcam Capture API. You can download it from here
webcam = Webcam.getDefault();
webcam.open();
if (webcam.isOpen()) { //if web cam open
BufferedImage image = webcam.getImage();
JLabel imageLbl = new JLabel();
imageLbl.setSize(640, 480); //show captured image
imageLbl.setIcon(new ImageIcon(image));
int showConfirmDialog = JOptionPane.showConfirmDialog(null, imageLbl, "Image Viewer", JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE, new ImageIcon(""));
if (showConfirmDialog == JOptionPane.YES_OPTION) {
JFileChooser chooser = new JFileChooser();
chooser.setDialogTitle("Save Image");
chooser.setFileFilter(new FileNameExtensionFilter("IMAGES ONLY", "png", "jpeg", "jpg")); //this file extentions are shown
int showSaveDialog = chooser.showSaveDialog(this);
if (showSaveDialog == 0) { //if pressed 'Save' button
String filePath = chooser.getCurrentDirectory().toString().replace("\\", "/");
String fileName = chooser.getSelectedFile().getName(); //get user entered file name to save
ImageIO.write(image, "PNG", new File(filePath + "/" + fileName + ".png"));
}
}
}
http://grack.com/downloads/school/enel619.10/report/java_media_framework.html
Using the Player with Swing
The Player can be easily used in a Swing application as well. The following code creates a Swing-based TV capture program with the video output displayed in the entire window:
import javax.media.*;
import javax.swing.*;
import java.awt.*;
import java.net.*;
import java.awt.event.*;
import javax.swing.event.*;
public class JMFTest extends JFrame {
Player _player;
JMFTest() {
addWindowListener( new WindowAdapter() {
public void windowClosing( WindowEvent e ) {
_player.stop();
_player.deallocate();
_player.close();
System.exit( 0 );
}
});
setExtent( 0, 0, 320, 260 );
JPanel panel = (JPanel)getContentPane();
panel.setLayout( new BorderLayout() );
String mediaFile = "vfw://1";
try {
MediaLocator mlr = new MediaLocator( mediaFile );
_player = Manager.createRealizedPlayer( mlr );
if (_player.getVisualComponent() != null)
panel.add("Center", _player.getVisualComponent());
if (_player.getControlPanelComponent() != null)
panel.add("South", _player.getControlPanelComponent());
}
catch (Exception e) {
System.err.println( "Got exception " + e );
}
}
public static void main(String[] args) {
JMFTest jmfTest = new JMFTest();
jmfTest.show();
}
}
Java usually doesn't like accessing hardware, so you will need a driver program of some sort, as goldenmean said. I've done this on my laptop by finding a command line program that snaps a picture. Then it's the same as goldenmean explained; you run the command line program from your java program in the takepicture() routine, and the rest of your code runs the same.
Except for the part about reading pixel values into an array, you might be better served by saving the file to BMP, which is nearly that format already, then using the standard java image libraries on it.
Using a command line program adds a dependency to your program and makes it less portable, but so was the webcam, right?
I believe the web-cam application software which comes along with the web-cam, or you native windows webcam software can be run in a batch script(windows/dos script) after turning the web cam on(i.e. if it needs an external power supply). In the bacth script , u can add appropriate delay to capture after certain time period. And keep executing the capture command in loop.
I guess this should be possible
-AD
There's a pretty nice interface for this in processing, which is kind of a pidgin java designed for graphics. It gets used in some image recognition work, such as that link.
Depending on what you need out of it, you might be able to load the video library that's used there in java, or if you're just playing around with it you might be able to get by using processing itself.
FMJ can do this, as can the supporting library it uses, LTI-CIVIL. Both are on sourceforge.
Recommand using FMJ for multimedia relatived java app.
Try using JMyron How To Use Webcam Using Java. I think using JMyron is the easiest way to access a webcam using java. I tried to use it with a 64-bit processor, but it gave me an error. It worked just fine on a 32-bit processor, though.