Examples of java.awt.image.ImageFilter

java.awt.image.ImageFilter
This class implements a filter for the set of interface methods that are used to deliver data from an ImageProducer to an ImageConsumer. It is meant to be used in conjunction with a FilteredImageSource object to produce filtered versions of existing images. It is a base class that provides the calls needed to implement a "Null filter" which has no effect on the data being passed through. Filters should subclass this class and override the methods which deal with the data that needs to be filtered and modify it as necessary. @see FilteredImageSource @see ImageConsumer @version 1.32 11/17/05 @author Jim Graham

        g.fillOval((int) ((gameControl.getTime().getTimeTraveled()/((double)(Place.OREGON.getLocation()))*width-30)) + 20, (height/2)-4, 10, 10);
        g.drawImage(spaceship, (int) ((gameControl.getTime().getTimeTraveled()/((double)(Place.OREGON.getLocation()))*width)-30) + 12, (height/2)-50, 30, 30,null);
      }
   
   private Image makeColorTransparent (BufferedImage im, final Color color) {
          ImageFilter filter = new RGBImageFilter() {
          // the color we are looking for... Alpha bits are set to opaque
          public int markerRGB = color.getRGB() | 0xFF000000;


          public final int filterRGB(int x, int y, int rgb) {
              if ( ( rgb | 0xFF000000 ) == markerRGB ) {

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    /**
     * The actual scaling code.
     */
    private Image scale(Image img, int width, int height) {
        ImageFilter filter;
        filter = new ImprovedAveragingScaleFilter(img.getWidth(null), img
                .getHeight(null), width, height);


        ImageProducer prod;
        prod = new FilteredImageSource(img.getSource(), filter);

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            filterImages(tracker, applet, null, numimages);
    }


    private void filterImages(MediaTracker tracker, Applet applet, Toolkit tk, int numimages) {
        imgf = new Image[numimages];
        ImageFilter filter = new HotTrackImageFilter();


        for (int i = 0; i < numimages; i++) {
            if (applet != null)
                imgf[i] = applet.createImage(new FilteredImageSource(img[i].getSource(),
                        filter));

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    public abstract int getWidth(ImageObserver observer);


    public abstract int getHeight(ImageObserver observer);


    public Image getScaledInstance(int width, int height, int hints) {
        ImageFilter filter;
        if ((hints & (SCALE_SMOOTH | SCALE_AREA_AVERAGING)) != 0) {
            filter = new AreaAveragingScaleFilter(width, height);
        } else {
            filter = new ReplicateScaleFilter(width, height);
        }

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        return bufferedImage;
    }


    private BufferedImage makeColorTransparent(BufferedImage im, final Color color) {
        ImageFilter filter = new RGBImageFilter() {


            // the color we are looking for... Alpha bits are set to opaque
            public int markerRGB = color.getRGB() | 0xFF000000;


            @Override

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        final int width = bi.getWidth();


        final BufferedImage imageOut = new BufferedImage(width * scale, (height * scale),
                BufferedImage.TYPE_BYTE_GRAY);


        final ImageFilter filter = new RGBImageFilter() {


            @Override
            public int filterRGB(final int x, final int y, final int rgb) {
                          
                final int rgb2 = rgb & 0xFF000000;

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                && icon.getIconWidth() > 0
                && icon.getIconHeight() > 0) {
            BufferedImage img = new BufferedImage(icon.getIconWidth(),
                    icon.getIconWidth(), BufferedImage.TYPE_INT_ARGB);
            icon.paintIcon(component, img.getGraphics(), 0, 0);
            ImageFilter filter = new RGBGrayFilter();
            ImageProducer producer = new FilteredImageSource(img.getSource(), filter);
            Image resultImage = component.createImage(producer);
            return new ImageIconUIResource(resultImage);
        }
        return super.getDisabledIcon(component, icon);

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     * @see        java.awt.Image#SCALE_REPLICATE
     * @see        java.awt.Image#SCALE_AREA_AVERAGING
     * @since      JDK1.1
     */
    public Image getScaledInstance(int width, int height, int hints) {
        ImageFilter filter;
        if ((hints & (SCALE_SMOOTH | SCALE_AREA_AVERAGING)) != 0) {
            filter = new AreaAveragingScaleFilter(width, height);
        } else {
            filter = new ReplicateScaleFilter(width, height);
        }

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     * @see        java.awt.Image#SCALE_REPLICATE
     * @see        java.awt.Image#SCALE_AREA_AVERAGING
     * @since      JDK1.1
     */
    public Image getScaledInstance(int width, int height, int hints) {
  ImageFilter filter;
  if ((hints & (SCALE_SMOOTH | SCALE_AREA_AVERAGING)) != 0) {
      filter = new AreaAveragingScaleFilter(width, height);
  } else {
      filter = new ReplicateScaleFilter(width, height);
  }

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                && icon.getIconWidth() > 0
                && icon.getIconHeight() > 0) {
            BufferedImage img = new BufferedImage(icon.getIconWidth(), 
                    icon.getIconWidth(), BufferedImage.TYPE_INT_ARGB);
            icon.paintIcon(component, img.getGraphics(), 0, 0);
            ImageFilter filter = new RGBGrayFilter();
            ImageProducer producer = new FilteredImageSource(img.getSource(), filter);
            Image resultImage = component.createImage(producer);
            return new ImageIconUIResource(resultImage);
        }
        return super.getDisabledIcon(component, icon);

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