Beispiel #1
0
 // buffered images are just better.
 protected static BufferedImage imageToBufferedImage(Image img) {
   BufferedImage bi =
       new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB);
   Graphics2D g2 = bi.createGraphics();
   g2.drawImage(img, null, null);
   return bi;
 }
  public static void saveJPG(Image img, String s) {
    BufferedImage bi =
        new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = bi.createGraphics();
    g2.drawImage(img, null, null);

    FileOutputStream out = null;
    try {
      out = new FileOutputStream(s);
    } catch (java.io.FileNotFoundException io) {
      System.out.println("File Not Found");
    }

    JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
    JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(bi);
    param.setQuality(0.5f, false);
    encoder.setJPEGEncodeParam(param);

    try {
      encoder.encode(bi);
      out.close();
    } catch (java.io.IOException io) {
      System.out.println("IOException");
    }
  }
Beispiel #3
0
 // initialize default image
 private BufferedImage getDefaultImage(int w, int h) {
   BufferedImage defaultImage = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
   Graphics2D graphics2D = defaultImage.createGraphics();
   graphics2D.setColor(new Color(200, 200, 200));
   graphics2D.fillRect(0, 0, w, h);
   graphics2D.setColor(new Color(130, 130, 130));
   graphics2D.drawRect(0, 0, w - 1, h - 1);
   return defaultImage;
 }
Beispiel #4
0
 // compare the two images in this object.
 public void compare() {
   // setup change display image
   imgc = imageToBufferedImage(img1);
   Graphics2D gc = imgc.createGraphics();
   gc.setColor(Color.RED);
   // convert to gray images.
   img1 = imageToBufferedImage(GrayFilter.createDisabledImage(img1));
   img2 = imageToBufferedImage(GrayFilter.createDisabledImage(img2));
   // how big are each section
   int blocksx = (int) (img1.getWidth() / comparex);
   int blocksy = (int) (img1.getHeight() / comparey);
   // set to a match by default, if a change is found then flag non-match
   this.match = true;
   // loop through whole image and compare individual blocks of images
   for (int y = 0; y < comparey; y++) {
     if (debugMode > 0) System.out.print("|");
     for (int x = 0; x < comparex; x++) {
       int b1 =
           getAverageBrightness(
               img1.getSubimage(x * blocksx, y * blocksy, blocksx - 1, blocksy - 1));
       int b2 =
           getAverageBrightness(
               img2.getSubimage(x * blocksx, y * blocksy, blocksx - 1, blocksy - 1));
       int diff = Math.abs(b1 - b2);
       if (diff
           > factorA) { // the difference in a certain region has passed the threshold value of
                        // factorA
         // draw an indicator on the change image to show where change was detected.
         gc.drawRect(x * blocksx, y * blocksy, blocksx - 1, blocksy - 1);
         this.match = false;
       }
       if (debugMode == 1) System.out.print((diff > factorA ? "X" : " "));
       if (debugMode == 2) System.out.print(diff + (x < comparex - 1 ? "," : ""));
     }
     if (debugMode > 0) System.out.println("|");
   }
 }
Beispiel #5
0
  /** Get an image based on index numbers */
  public BufferedImage getIndexedImage(
      int x, int y, int zoom, int cacheZoom, GMapListener listener) {

    if (listener != null) {
      if (!getGDataSource().isCached(x, y, zoom)) {
        listener.updateGMapPainting();
        listener.updateGMapMessage(GMap.MESSAGE_DOWNLOADING);
      } else {
        listener.updateGMapMessage(GMap.MESSAGE_PAINTING);
      }
    }

    BufferedImage thumbImage = getGDataSource().getImage(x, y, zoom, true);

    if (thumbImage == null) return defaultImage;

    // if we dont have to paint cache, return here
    if (cacheZoom == (GPhysicalPoint.MIN_ZOOM - 1) || cacheZoom >= zoom) return thumbImage;

    BufferedImage paintedImage =
        new BufferedImage(
            GDataSource.sourceSize.width,
            GDataSource.sourceSize.height,
            BufferedImage.TYPE_INT_ARGB);
    Graphics2D graphics2D = paintedImage.createGraphics();
    graphics2D.drawImage(
        thumbImage, 0, 0, GDataSource.sourceSize.width, GDataSource.sourceSize.height, null);

    // now lets move to painting the cache
    double imageNum = Math.pow(2, zoom - cacheZoom);

    // draw cache lines
    int startX = (int) (imageNum * x);
    int startY = (int) (imageNum * y);

    // get composite to restore later, set new transparent composite
    Composite originalComposite = graphics2D.getComposite();
    graphics2D.setComposite(opacity40);

    // draw grid
    for (int i = 0; i < imageNum; i++) {
      for (int j = 0; j < imageNum; j++) {
        // points
        Point upperLeft =
            new Point(
                (int) (GDataSource.sourceSize.width / imageNum) * i,
                (int) (GDataSource.sourceSize.height / imageNum) * j);
        Dimension size =
            new Dimension(
                (int) (GDataSource.sourceSize.width / imageNum),
                (int) (GDataSource.sourceSize.height / imageNum));

        // draw lines
        graphics2D.setColor(new Color(100, 100, 100));
        graphics2D.drawLine(upperLeft.x, upperLeft.y, upperLeft.x + size.width, upperLeft.y);
        graphics2D.drawLine(upperLeft.x, upperLeft.y, upperLeft.x, upperLeft.y + size.height);

        // check if file exists
        if (getGDataSource().isCached(startX + i, startY + j, cacheZoom))
          graphics2D.setColor(Color.RED);
        else graphics2D.setColor(new Color(155, 155, 155));

        // shade rectangle
        graphics2D.fillRect(upperLeft.x, upperLeft.y, size.width, size.height);
      }
    }

    // restore composite
    graphics2D.setComposite(originalComposite);

    return paintedImage;
  }