Example usage for java.awt.image BufferedImage BufferedImage

List of usage examples for java.awt.image BufferedImage BufferedImage

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Introduction

In this page you can find the example usage for java.awt.image BufferedImage BufferedImage.

Prototype

public BufferedImage(int width, int height, int imageType)

Source Link

Document

Constructs a BufferedImage of one of the predefined image types.

Usage

From source file:org.web4thejob.web.util.MediaUtil.java

public static BufferedImage createThumbnail(byte[] bytes) {
    Image image = getImage(bytes);
    BufferedImage bufferedImage = new BufferedImage(image.getWidth(), image.getHeight(),
            BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = bufferedImage.createGraphics();
    g.drawImage(image.toImageIcon().getImage(), 0, 0, null);
    g.dispose();/*from w w w  . j av  a 2s . com*/
    return createThumbnail(bufferedImage);
}

From source file:ml.hsv.java

public static void HSV2File(hsv hsvImage[][], int width, int height) throws IOException //store img output as hsv2file.png
{
    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    WritableRaster raster = image.getRaster();
    for (int i = 0; i < height; i++) {
        for (int j = 0; j < width; j++) {
            int RGB = Color.HSBtoRGB(hsvImage[i][j].h, hsvImage[i][j].s, hsvImage[i][j].v);
            Color c = new Color(RGB);
            int temp[] = { c.getRed(), c.getGreen(), c.getBlue() };
            raster.setPixel(j, i, temp);
        }/* w  w  w .j  a  v a 2s .c o m*/
    }
    ImageIO.write(image, "PNG",
            new File("/home/shinchan/FinalProject/PaperImplementation/Eclipse/ML/output/hsv2file.png"));
}

From source file:com.yanbang.portal.controller.PortalController.java

/**
 * ???/*from  w  w w .j a  va 2s . c o m*/
 * 
 * @param request
 * @param response
 * @return
 * @throws Exception
 */
@RequestMapping(params = "action=handleRnd")
public void handleRnd(HttpServletRequest request, HttpServletResponse response) throws Exception {
    response.setHeader("Cache-Control", "no-store");
    response.setHeader("Pragma", "no-cache");
    response.setDateHeader("Expires", 0L);
    response.setContentType("image/jpeg");
    BufferedImage image = new BufferedImage(65, 25, BufferedImage.TYPE_INT_RGB);
    Graphics g = image.getGraphics();
    g.setColor(Color.GRAY);
    g.fillRect(0, 0, 65, 25);
    g.setColor(Color.yellow);
    Font font = new Font("", Font.BOLD, 20);
    g.setFont(font);
    Random r = new Random();
    String rnd = "";
    int ir = r.nextInt(10);
    rnd = rnd + "" + ir;
    g.drawString("" + ir, 5, 18);
    g.setColor(Color.red);
    ir = r.nextInt(10);
    rnd = rnd + "" + ir;
    g.drawString("" + ir, 20, 18);
    g.setColor(Color.blue);
    ir = r.nextInt(10);
    rnd = rnd + "" + ir;
    g.drawString("" + ir, 35, 18);
    g.setColor(Color.green);
    ir = r.nextInt(10);
    rnd = rnd + "" + ir;
    g.drawString("" + ir, 50, 18);
    request.getSession().setAttribute("RND", rnd);
    ServletOutputStream out = response.getOutputStream();
    out.write(ImageUtil.imageToBytes(image, "gif"));
    out.flush();
    out.close();
}

From source file:net.pkhsolutions.pecsapp.control.PictureTransformer.java

/**
 * TODO Document me//  w  w  w.j a  v a2  s .co m
 *
 * @param image
 * @param maxHeightInPx
 * @param maxWidthInPx
 * @return
 */
@NotNull
public BufferedImage scaleIfNecessary(@NotNull BufferedImage image, int maxHeightInPx, int maxWidthInPx) {
    int w = image.getWidth();
    int h = image.getHeight();

    int newW;
    int newH;

    if (w <= maxWidthInPx && h <= maxHeightInPx) {
        return image;
    } else if (w > h) {
        newW = maxWidthInPx;
        newH = newW * h / w;
    } else {
        newH = maxHeightInPx;
        newW = newH * w / h;
    }
    LOGGER.info("Original size was w{} x h{}, new size is w{} x h{}", w, h, newW, newH);
    Image tmp = image.getScaledInstance(newW, newH, Image.SCALE_SMOOTH);
    BufferedImage img = new BufferedImage(newW, newH, image.getType());
    Graphics2D g2d = img.createGraphics();
    g2d.drawImage(tmp, 0, 0, null);
    g2d.dispose();
    return img;
}

From source file:be.fedict.eid.idp.sp.PhotoServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    LOG.debug("doGet");
    response.setContentType("image/jpg");
    response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate, max-age=-1"); // http 1.1
    response.setHeader("Pragma", "no-cache, no-store"); // http 1.0
    response.setDateHeader("Expires", -1);
    ServletOutputStream out = response.getOutputStream();
    HttpSession session = request.getSession();

    byte[] photoData = (byte[]) session.getAttribute(PHOTO_SESSION_ATTRIBUTE);

    if (null != photoData) {
        BufferedImage photo = ImageIO.read(new ByteArrayInputStream(photoData));
        if (null == photo) {
            /*/*from   www  .  j ava 2s . com*/
             * In this case we render a photo containing some error message.
             */
            photo = new BufferedImage(140, 200, BufferedImage.TYPE_INT_RGB);
            Graphics2D graphics = (Graphics2D) photo.getGraphics();
            RenderingHints renderingHints = new RenderingHints(RenderingHints.KEY_TEXT_ANTIALIASING,
                    RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
            graphics.setRenderingHints(renderingHints);
            graphics.setColor(Color.WHITE);
            graphics.fillRect(1, 1, 140 - 1 - 1, 200 - 1 - 1);
            graphics.setColor(Color.RED);
            graphics.setFont(new Font("Dialog", Font.BOLD, 20));
            graphics.drawString("Photo Error", 0, 200 / 2);
            graphics.dispose();
            ImageIO.write(photo, "jpg", out);
        } else {
            out.write(photoData);
        }
    }
    out.close();
}

From source file:gui.images.CodebookVectorProfilePanel.java

/**
 * Generate a BufferedImage that would correspond to a JPanel. Images are
 * faster to show than interactive components if many components need to be
 * presented./*from  w ww  .ja v a2s .  co  m*/
 *
 * @param panel JPanel object.
 * @return BufferedImage of how the content in the provided panel would be
 * rendered.
 */
public BufferedImage createImage(JPanel panel) {
    int width = panel.getSize().width;
    int height = panel.getSize().height;
    BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    Graphics2D g = bi.createGraphics();
    panel.paint(g);
    return bi;
}

From source file:c.depthchart.ViewerPanel.java

public ViewerPanel() {
    setBackground(Color.WHITE);/*from  w  w  w . java  2 s  .  c  om*/

    df = new DecimalFormat("0.#"); // 1 dp
    msgFont = new Font("SansSerif", Font.BOLD, 18);

    initChart();
    configOpenNI();

    histogram = new float[MAX_DEPTH_SIZE];

    imWidth = depthMD.getFullXRes();
    imHeight = depthMD.getFullYRes();
    System.out.println("Image dimensions (" + imWidth + ", " + imHeight + ")");

    // create empty image object of correct size and type
    imgbytes = new byte[imWidth * imHeight];
    image = new BufferedImage(imWidth, imHeight, BufferedImage.TYPE_BYTE_GRAY);

    new Thread(this).start(); // start updating the panel's image
}

From source file:com.fun.util.TesseractUtil.java

/**
 * /*from   w ww . ja v  a2s  .  c om*/
 *
 * @param imageFile
 * @param times
 * @param targetFile
 * @throws IOException
 */
private static void scaled(File imageFile, int times, File targetFile) throws IOException {
    BufferedImage image = ImageIO.read(imageFile);
    int targetWidth = image.getWidth() * times;
    int targetHeight = image.getHeight() * times;
    int type = (image.getTransparency() == Transparency.OPAQUE) ? BufferedImage.TYPE_INT_RGB
            : BufferedImage.TYPE_INT_ARGB;
    BufferedImage tmp = new BufferedImage(targetWidth, targetHeight, type);
    Graphics2D g2 = tmp.createGraphics();
    g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
    g2.drawImage(image, 0, 0, targetWidth, targetHeight, null);
    g2.dispose();
    ImageIO.write(tmp, "png", targetFile);
}

From source file:com.tdclighthouse.prototype.servlets.JLatexServlet.java

private synchronized BufferedImage generateImage(String latex) {
    TeXFormula formula = new TeXFormula(latex);
    TeXIcon icon = formula.createTeXIcon(TeXConstants.STYLE_DISPLAY, 20);
    icon.setInsets(new Insets(5, 5, 5, 5));

    BufferedImage image = new BufferedImage(icon.getIconWidth(), icon.getIconHeight(),
            BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = image.createGraphics();
    g2.setColor(Color.white);//from  ww w.  java2  s.c o  m
    g2.fillRect(0, 0, icon.getIconWidth(), icon.getIconHeight());
    JLabel jl = new JLabel();
    jl.setForeground(new Color(0, 0, 0));
    icon.paintIcon(jl, g2, 0, 0);
    return image;
}

From source file:com.github.andreax79.meca.Main.java

public static Stats drawRule(int ruleNumber, int size, Boundaries boundaries, UpdatePattern updatePattern,
        int steps, double alpha, String pattern, Output output, ColorScheme colorScheme) throws IOException {
    Rule rule = new Rule(ruleNumber);
    Row row = new Row(size, rule, boundaries, updatePattern, pattern, alpha); // e.g. 00010011011111
    Stats stats = new Stats();

    FileOutputStream finalImage = null;
    Graphics2D g = null;/* w  w  w .  j  av  a 2  s  .  co m*/
    BufferedImage img = null;

    if (output != Output.noOutput) {
        String fileName = "rule" + ruleNumber;
        // pattern
        if (pattern != null)
            fileName += pattern;
        // alpha
        if (alpha > 0)
            fileName += String.format("_a%02d", (int) (alpha * 100));
        // updatePattern
        if (updatePattern != UpdatePattern.synchronous)
            fileName += "-" + updatePattern;
        fileName += ".jpeg";

        File file = new File(fileName);
        finalImage = new FileOutputStream(file);

        int width = (int) (cellSize * (size + 1) * (output == Output.all ? 1.25 : 1));
        int height = cellSize * (steps + 1);
        img = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        g = img.createGraphics();
        g.setBackground(Color.white);
        g.clearRect(0, 0, width, height);
        g.setColor(Color.black);
    }

    int startMeansFromStep = 50;
    List<Double> densities = new LinkedList<Double>();
    double totalDensities = 0;

    double prevValue = 0;
    double prevDelta = 0;
    double prevOnes = 0;
    double prevOnesDelta = 0;

    for (int t = 0; t < steps; t++) {
        if (t >= startMeansFromStep) {
            double density = row.getDensity();
            densities.add(density);
            totalDensities += density;
        }
        // System.out.println(String.format("%4d", t) + " " + row.toString() + " ones=" + row.getOnes());
        if (output != Output.noOutput) {
            for (int j = 0; j < row.getSize(); j++) {

                switch (colorScheme) {
                case noColor:
                    if (row.getCell(j).getState()) {
                        g.setColor(Color.black);
                        g.fillRect(j * cellSize, t * cellSize, cellSize, cellSize);
                    }
                    break;
                case omegaColor:
                    g.setColor(row.getCell(j).getOmegaColor());
                    g.fillRect(j * cellSize, t * cellSize, cellSize, cellSize);
                    break;
                case activationColor:
                    if (row.getCell(j).getState()) {
                        g.setColor(row.getCell(j).getColor());
                        g.fillRect(j * cellSize, t * cellSize, cellSize, cellSize);
                    }
                    break;
                }
            }

            if (output == Output.all) {
                double value = row.getValue();
                double delta = Math.abs(value - prevValue);
                double ones = row.getOnes();
                double onesDelta = Math.abs(ones - prevOnes);
                if (t > 0) {
                    g.setColor(Color.red);
                    g.drawLine((int) (prevValue * cellSize / 4.0) + cellSize * (size + 1),
                            (int) ((t - 1) * cellSize), (int) (value * cellSize / 4.0) + cellSize * (size + 1),
                            (int) (t * cellSize));
                    g.setColor(Color.blue);
                    g.drawLine((int) (prevOnes * cellSize / 4.0) + cellSize * (size + 1),
                            (int) ((t - 1) * cellSize), (int) (ones * cellSize / 4.0) + cellSize * (size + 1),
                            (int) (t * cellSize));
                    if (t > 1) {
                        g.setColor(Color.orange);
                        g.drawLine((int) (prevDelta * cellSize / 4.0) + cellSize * (size + 1),
                                (int) ((t - 1) * cellSize),
                                (int) (delta * cellSize / 4.0) + cellSize * (size + 1), (int) (t * cellSize));
                        g.setColor(Color.cyan);
                        g.drawLine((int) (prevOnesDelta * cellSize / 4.0) + cellSize * (size + 1),
                                (int) ((t - 1) * cellSize),
                                (int) (onesDelta * cellSize / 4.0) + cellSize * (size + 1),
                                (int) (t * cellSize));
                    }
                }
                prevValue = value;
                prevDelta = delta;
                prevOnes = ones;
                prevOnesDelta = onesDelta;
            }
        }

        row = new Row(row);
    }

    double means = totalDensities / densities.size();
    double var = 0;
    for (double density : densities)
        var += Math.pow(density - means, 2);
    var = var / densities.size();
    System.out.println("Rule: " + ruleNumber + " Boundaties: " + boundaries + " UpdatePattern: " + updatePattern
            + " Alpha: " + String.format("%.3f", alpha) + " Means: " + String.format("%.6f", means)
            + " Variance: " + String.format("%.6f", var));
    stats.setMeans(means);
    stats.setVariance(var);

    if (output != Output.noOutput) {
        JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(finalImage);
        JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(img);
        param.setQuality(1.0f, true);
        encoder.encode(img, param);
        finalImage.flush();
        finalImage.close();
    }

    return stats;
}