public static void main(String[] args) {
    // read filename and N 2 parameters
    String fileName = args[0];
    N = Integer.parseInt(args[1]);

    // output two images, one original image at left, the other result image at right
    BufferedImage imgOriginal =
        new BufferedImage(IMAGE_WIDTH, IMAGE_HEIGHT, BufferedImage.TYPE_INT_RGB);
    BufferedImage img = new BufferedImage(IMAGE_WIDTH, IMAGE_HEIGHT, BufferedImage.TYPE_INT_RGB);

    try {
      File file = new File(fileName);
      InputStream is = new FileInputStream(file);

      long len = file.length();
      byte[] bytes = new byte[(int) len];

      int offset = 0;
      int numRead = 0;
      while (offset < bytes.length
          && (numRead = is.read(bytes, offset, bytes.length - offset)) >= 0) {
        offset += numRead;
      }

      int ind = 0;
      for (int y = 0; y < IMAGE_HEIGHT; y++) {
        for (int x = 0; x < IMAGE_WIDTH; x++) {
          // for reading .raw image to show as a rgb image
          byte r = bytes[ind];
          byte g = bytes[ind];
          byte b = bytes[ind];

          // set pixel for display original image
          int pixOriginal = 0xff000000 | ((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff);
          imgOriginal.setRGB(x, y, pixOriginal);
          ind++;
        }
      }
      is.close();
    } catch (FileNotFoundException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    }

    int[] vectorSpace = calculateVectorSpace(imgOriginal);

    // quantization
    for (int y = 0; y < IMAGE_HEIGHT; y++) {
      for (int x = 0; x < IMAGE_WIDTH; x++) {
        int clusterId = vectorSpace[IMAGE_WIDTH * y + x];
        img.setRGB(x, y, clusters[clusterId].getPixel());
      }
    }

    // Use a panel and label to display the image
    JPanel panel = new JPanel();
    panel.add(new JLabel(new ImageIcon(imgOriginal)));
    panel.add(new JLabel(new ImageIcon(img)));

    JFrame frame = new JFrame("Display images");

    frame.getContentPane().add(panel);
    frame.pack();
    frame.setVisible(true);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  }
Example #2
0
  // Thread's run method aimed at creating a bitmap asynchronously
  public void run() {
    Drawing drawing = new Drawing();
    PicText rawPicText = new PicText();
    String s = ((PicText) element).getText();
    rawPicText.setText(s);
    drawing.add(
        rawPicText); // bug fix: we must add a CLONE of the PicText, otherwise it loses it former
                     // parent... (then pb with the view )
    drawing.setNotparsedCommands(
        "\\newlength{\\jpicwidth}\\settowidth{\\jpicwidth}{"
            + s
            + "}"
            + CR_LF
            + "\\newlength{\\jpicheight}\\settoheight{\\jpicheight}{"
            + s
            + "}"
            + CR_LF
            + "\\newlength{\\jpicdepth}\\settodepth{\\jpicdepth}{"
            + s
            + "}"
            + CR_LF
            + "\\typeout{JPICEDT INFO: \\the\\jpicwidth, \\the\\jpicheight,  \\the\\jpicdepth }"
            + CR_LF);
    RunExternalCommand.Command commandToRun = RunExternalCommand.Command.BITMAP_CREATION;
    // RunExternalCommand command = new RunExternalCommand(drawing, contentType,commandToRun);
    boolean isWriteTmpTeXfile = true;
    String bitmapExt = "png"; // [pending] preferences
    String cmdLine =
        "{i}/unix/tetex/create_bitmap.sh {p} {f} "
            + bitmapExt
            + " "
            + fileDPI; // [pending] preferences
    ContentType contentType = getContainer().getContentType();
    RunExternalCommand.isGUI = false; // System.out, no dialog box // [pending] debug
    RunExternalCommand command =
        new RunExternalCommand(drawing, contentType, cmdLine, isWriteTmpTeXfile);
    command
        .run(); // synchronous in an async. thread => it's ok (anyway, we must way until the LaTeX
                // process has completed)

    if (wantToComputeLatexDimensions) {
      // load size of text:
      try {
        File logFile = new File(command.getTmpPath(), command.getTmpFilePrefix() + ".log");
        BufferedReader reader = null;
        try {
          reader = new BufferedReader(new FileReader(logFile));
        } catch (FileNotFoundException fnfe) {
          System.out.println("Cannot find log file! " + fnfe.getMessage());
          System.out.println(logFile);
        } catch (IOException ioex) {
          System.out.println("Log file IO exception");
          ioex.printStackTrace();
        } // utile ?
        System.out.println("Log file created! file=" + logFile);
        getDimensionsFromLogFile(reader, (PicText) element);
        syncStringLocation(); // update dimensions
        syncBounds();
        syncFrame();
        SwingUtilities.invokeLater(
            new Thread() {
              public void run() {
                repaint(null);
              }
            });
        // repaint(null); // now that dimensions are available, we force a repaint() [pending]
        // smart-repaint ?
      } catch (Exception e) {
        e.printStackTrace();
      }
    }

    if (wantToGetBitMap) {
      // load image:
      try {
        File bitmapFile =
            new File(command.getTmpPath(), command.getTmpFilePrefix() + "." + bitmapExt);
        this.image = ImageIO.read(bitmapFile);
        System.out.println(
            "Bitmap created! file="
                + bitmapFile
                + ", width="
                + image.getWidth()
                + "pixels, height="
                + image.getHeight()
                + "pixels");
        if (image == null) return;
        syncStringLocation(); // sets strx, stry, and dimensions of text
        syncBounds();
        // update the AffineTransform that will be applied to the bitmap before displaying on screen
        PicText te = (PicText) element;
        text2ModelTr.setToIdentity(); // reset
        PicPoint anchor = te.getCtrlPt(TextEditable.P_ANCHOR, ptBuf);
        text2ModelTr.rotate(getRotation(), anchor.x, anchor.y); // rotate along P_ANCHOR !
        text2ModelTr.translate(te.getLeftX(), te.getTopY());
        text2ModelTr.scale(
            te.getWidth() / image.getWidth(),
            -(te.getHeight() + te.getDepth()) / image.getHeight());
        // [pending]  should do something special to avoid dividing by 0 or setting a rescaling
        // factor to 0 [non invertible matrix] (java will throw an exception)
        syncFrame();
        SwingUtilities.invokeLater(
            new Thread() {
              public void run() {
                repaint(null);
              }
            });
        // repaint(null); // now that bitmap is available, we force a repaint() [pending]
        // smart-repaint ?
      } catch (Exception e) {
        e.printStackTrace();
      }
    }
  }