Example usage for java.awt.image BufferedImage createGraphics

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

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Introduction

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

Prototype

public Graphics2D createGraphics()

Source Link

Document

Creates a Graphics2D , which can be used to draw into this BufferedImage .

Usage

From source file:TextQualityDemoVALUE_TEXT_ANTIALIAS_LCD_HBGR.java

public void paintComponent(Graphics g) {
    Dimension d = this.getSize();
    BufferedImage backBuffer = (BufferedImage) this.createImage(d.width, d.height);
    Graphics2D g2 = backBuffer.createGraphics();

    g2.setColor(Color.WHITE);/*from ww  w .  j a  v a  2  s.  c om*/
    g2.fillRect(0, 0, d.width, d.height);

    g2.setColor(Color.BLACK);
    g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, hintValue);

    g2.drawRect(0, 0, d.width - 1, d.height - 1);

    g2.drawString("abcdefghijklmnopqrstuvwxyz", 20, 40);
    g2.drawString("ABCDEFGHIJKLMNOPQRSTUVWXYZ", 20, 60);
    g2.drawString("1234567890-=!@#$%^&*()_+,./<>?", 20, 80);

    g.drawImage(backBuffer, 0, 0, this);
}

From source file:ImageComposite.java

public void paint(Graphics g) {
    super.paint(g);
    Graphics2D g2d = (Graphics2D) g;

    BufferedImage buffImg = new BufferedImage(200, 100, BufferedImage.TYPE_INT_ARGB);
    Graphics2D gbi = buffImg.createGraphics();

    AlphaComposite ac = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha);

    gbi.drawImage(a, 40, 30, null);/* w w w .  j  av a 2  s  . c  om*/
    gbi.setComposite(ac);
    gbi.drawImage(b, 0, 0, null);

    g2d.drawImage(buffImg, 20, 20, null);
}

From source file:com.actelion.research.orbit.imageAnalysis.utils.ImageUtils.java

/**
 * Rescales using plate intensities and converts to 8bit. Works for gray- and rgb color images.
 *
 * @param bi16/*  ww w  .  j a va 2  s . c om*/
 * @return
 */
public static BufferedImage convertTo8bit(int rdfId, BufferedImage bi16, PlateScalingMin plateScalingMin,
        PlateScalingMax plateScalingMax) throws Exception {
    RawDataFile rdf = DALConfig.getImageProvider().LoadRawDataFile(rdfId);
    /*
    if (plateScalingMin==defaultPlateScalingMin && plateScalingMax==defaultPlateScalingMax) {
        // /orbitvol1/2014-11/4309324.1002.jpg
        String url = RawUtils.STR_SERVER+"/rawFile?rawFile="+rdf.getDataPath()+"/"+rdfId+"."+RawUtils.LEVEL_8BITPREVIEW+".jpg";
        System.out.println("url: " + url);
        return ImageIO.read(new URL(url));
    }
    */

    RawData rd = DALConfig.getImageProvider().LoadRawData(rdf.getRawDataId());
    List<RawMeta> rmList = DALConfig.getImageProvider().LoadRawMetasByRawDataFile(rdfId);
    List<RawMeta> rmDataList = DALConfig.getImageProvider().LoadRawMetasByRawData(rd.getRawDataId());
    rmList.addAll(rmDataList);
    HashMap<String, RawMeta> rmHash = RawUtilsCommon.getHashFromMetaList(rmList);

    if (!rmHash.containsKey(RawUtilsCommon.STR_META_CHANNEL))
        throw new Exception("Error: Meta data 'Channel' not available for RawDataFile " + rdfId);
    //int channel = Integer.parseInt(rmHash.get(RawUtils.STR_META_CHANNEL).getValue()) - 1;
    int channel = Integer.parseInt(rmHash.get(RawUtilsCommon.STR_META_CHANNEL).getValue());
    String metaKey = "Percentiles_wvlength_" + channel + "_channel_0";
    if (!rmHash.containsKey(metaKey))
        throw new Exception("Error: Meta data '" + metaKey + "' not available for RawDataFile " + rdfId);
    String val = rmHash.get(metaKey).getValue();
    int[] minmax = parseMinMax(val, plateScalingMin, plateScalingMax);

    BufferedImage bi = null;
    if (bi16.getSampleModel().getNumBands() == 1) {
        bi16 = ImageUtils.scaleIntensities(bi16, new int[] { minmax[0] }, new int[] { minmax[1] });
        bi = new BufferedImage(bi16.getWidth(), bi16.getHeight(), BufferedImage.TYPE_BYTE_GRAY);
    } else {
        throw new IllegalArgumentException("Only images with 1 band (gray-color) supported. This image has "
                + bi16.getSampleModel().getNumBands() + " bands.");
    }
    Graphics2D g2d = bi.createGraphics();
    g2d.drawImage(bi16, 0, 0, null);
    g2d.dispose();
    return bi;
}

From source file:ImageOpByRomain.java

/**
 * <p>/*from w  ww. ja  v  a 2 s  .  c  om*/
 * Returns a thumbnail of a source image. <code>newSize</code> defines the
 * length of the longest dimension of the thumbnail. The other dimension is
 * then computed according to the dimensions ratio of the original picture.
 * </p>
 * <p>
 * This method offers a good trade-off between speed and quality. The result
 * looks better than
 * {@link #createThumbnailFast(java.awt.image.BufferedImage, int)} when the
 * new size is less than half the longest dimension of the source image, yet
 * the rendering speed is almost similar.
 * </p>
 * 
 * @see #createThumbnailFast(java.awt.image.BufferedImage, int, int)
 * @see #createThumbnailFast(java.awt.image.BufferedImage, int)
 * @see #createThumbnail(java.awt.image.BufferedImage, int, int)
 * @param image
 *            the source image
 * @param newSize
 *            the length of the largest dimension of the thumbnail
 * @return a new compatible <code>BufferedImage</code> containing a
 *         thumbnail of <code>image</code>
 * @throws IllegalArgumentException
 *             if <code>newSize</code> is larger than the largest dimension
 *             of <code>image</code> or &lt;= 0
 */
public static BufferedImage createThumbnail(BufferedImage image, int newSize) {
    int width = image.getWidth();
    int height = image.getHeight();

    boolean isWidthGreater = width > height;

    if (isWidthGreater) {
        if (newSize >= width) {
            throw new IllegalArgumentException("newSize must be lower than" + " the image width");
        }
    } else if (newSize >= height) {
        throw new IllegalArgumentException("newSize must be lower than" + " the image height");
    }

    if (newSize <= 0) {
        throw new IllegalArgumentException("newSize must" + " be greater than 0");
    }

    float ratioWH = (float) width / (float) height;
    float ratioHW = (float) height / (float) width;

    BufferedImage thumb = image;

    do {
        if (isWidthGreater) {
            width /= 2;
            if (width < newSize) {
                width = newSize;
            }
            height = (int) (width / ratioWH);
        } else {
            height /= 2;
            if (height < newSize) {
                height = newSize;
            }
            width = (int) (height / ratioHW);
        }

        BufferedImage temp = createCompatibleImage(image, width, height);
        Graphics2D g2 = temp.createGraphics();
        g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        g2.drawImage(thumb, 0, 0, temp.getWidth(), temp.getHeight(), null);
        g2.dispose();

        thumb = temp;
    } while (newSize != (isWidthGreater ? width : height));

    return thumb;
}

From source file:com.occamlab.te.parsers.ImageParser.java

private static Node processFrame(ImageReader reader, int frame, NodeList nodes, PrintWriter logger)
        throws Exception {
    if (nodes.getLength() == 0) {
        return null;
    }/*from w w  w.j  a v a 2 s. c  o  m*/
    String formatName = reader.getFormatName().toLowerCase(); // 2011-09-08
                                                              // PwD
    BufferedImage image = reader.read(frame);

    for (int i = 0; i < nodes.getLength(); i++) {
        Node node = nodes.item(i);
        if (node.getNodeType() == Node.ELEMENT_NODE) {
            // System.out.println(node.getLocalName());
            if (node.getLocalName().equals("type")) {
                node.setTextContent(formatName); // 2011-09-08 PwD was
                                                 // reader.getFormatName().toLowerCase()
            } else if (node.getLocalName().equals("height")) {
                node.setTextContent(Integer.toString(image.getHeight()));
            } else if (node.getLocalName().equals("width")) {
                node.setTextContent(Integer.toString(image.getWidth()));
            } else if (node.getLocalName().equals("metadata")) {
                try { // 2011--08-23 PwD
                    IIOMetadata metadata = reader.getImageMetadata(frame);
                    if (metadata != null) {
                        String format = ((Element) node).getAttribute("format");
                        if (format.length() == 0) {
                            format = metadata.getNativeMetadataFormatName();
                        }
                        Node tree = metadata.getAsTree(format);
                        TransformerFactory tf = TransformerFactory.newInstance();
                        Transformer t = tf.newTransformer();
                        t.transform(new DOMSource(tree), new DOMResult(node));
                    }
                } catch (javax.imageio.IIOException e) { // 2011--08-23 PwD
                    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
                    DocumentBuilder db = dbf.newDocumentBuilder();
                    Document doc = db.newDocument();
                    String format = reader.getFormatName().toLowerCase();
                    String formatEltName = "javax_imageio_" + format + "_1.0";
                    Element formatElt = doc.createElement(formatEltName);
                    TransformerFactory tf = TransformerFactory.newInstance();
                    Transformer t = tf.newTransformer();
                    t.transform(new DOMSource(formatElt), new DOMResult(node));
                }
            } else if (node.getLocalName().equals("model")) {
                int imagetype = -1;
                String model = ((Element) node).getAttribute("value");
                if (model.equals("MONOCHROME")) {
                    imagetype = BufferedImage.TYPE_BYTE_BINARY;
                } else if (model.equals("GRAY")) {
                    imagetype = BufferedImage.TYPE_BYTE_GRAY;
                } else if (model.equals("RGB")) {
                    imagetype = BufferedImage.TYPE_3BYTE_BGR;
                } else if (model.equals("ARGB")) {
                    imagetype = BufferedImage.TYPE_4BYTE_ABGR;
                } else {
                    model = "CUSTOM";
                }
                ((Element) node).setAttribute("value", model);
                BufferedImage buffImage = image;
                if (image.getType() != imagetype && imagetype != -1) {
                    buffImage = new BufferedImage(image.getWidth(), image.getHeight(), imagetype);
                    Graphics2D g2 = buffImage.createGraphics();
                    ImageTracker tracker = new ImageTracker();
                    boolean done = g2.drawImage(image, 0, 0, tracker);
                    if (!done) {
                        while (!tracker.done) {
                            sleep(50);
                        }
                    }
                }
                processBufferedImage(buffImage, formatName, node.getChildNodes());
            } else if (node.getLocalName().equals("transparency")) { // 2011-08-24
                                                                     // PwD
                int transparency = image.getTransparency();
                String transparencyName = null;
                switch (transparency) {
                case Transparency.OPAQUE: {
                    transparencyName = "Opaque";
                    break;
                }
                case Transparency.BITMASK: {
                    transparencyName = "Bitmask";
                    break;
                }
                case Transparency.TRANSLUCENT: {
                    transparencyName = "Translucent";
                    break;
                }
                default: {
                    transparencyName = "Unknown";
                }
                }
                node.setTextContent(transparencyName);

            } else if (node.getLocalName().equals("base64Data")) { // 2011-09-08
                                                                   // PwD
                String base64Data = getBase64Data(image, formatName, node);
                node.setTextContent(base64Data);
            } else {
                logger.println("ImageParser Error: Invalid tag " + node.getNodeName());
            }
        }
    }
    return null;
}

From source file:AlphaCompositeSRCOUT.java

public void paint(Graphics g) {
    Graphics2D g2D = (Graphics2D) g;

    int w = getSize().width;
    int h = getSize().height;

    BufferedImage bi = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
    Graphics2D big = bi.createGraphics();

    ac = AlphaComposite.getInstance(compositeRule, alphaValue);

    big.setColor(Color.red);//from  w w  w.  j  a v  a2s .  com
    big.drawString("Destination", w / 4, h / 4);
    big.fill(new Ellipse2D.Double(0, h / 3, 2 * w / 3, h / 3));

    big.setColor(Color.blue);
    big.drawString("Source", 3 * w / 4, h / 4);

    big.setComposite(ac);
    big.fill(new Ellipse2D.Double(w / 3, h / 3, 2 * w / 3, h / 3));

    g2D.drawImage(bi, null, 0, 0);
}

From source file:TextureWithBufferedImage.java

public void paint(Graphics g) {
    Graphics2D g2D = (Graphics2D) g;
    Rectangle2D rec1, rec2, rec3, rec4, rec5;
    rec1 = new Rectangle2D.Float(25, 25, 75, 150);
    rec2 = new Rectangle2D.Float(125, 25, 10, 75);
    rec3 = new Rectangle2D.Float(75, 125, 125, 75);
    rec4 = new Rectangle2D.Float(25, 15, 12, 75);
    rec5 = new Rectangle2D.Float(15, 50, 15, 15);

    AlphaComposite ac = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1);
    g2D.setComposite(ac);/*www  .  j a  v a2  s .  c om*/

    g2D.setStroke(new BasicStroke(5.0f));
    g2D.draw(rec1);
    GradientPaint gp = new GradientPaint(125f, 25f, Color.yellow, 225f, 100f, Color.blue);
    g2D.setPaint(gp);
    g2D.fill(rec2);
    BufferedImage bi = new BufferedImage(5, 5, BufferedImage.TYPE_INT_RGB);
    Graphics2D big = bi.createGraphics();
    big.setColor(Color.magenta);
    big.fillRect(0, 0, 5, 5);
    big.setColor(Color.black);
    big.drawLine(0, 0, 5, 5);
    Rectangle r = new Rectangle(0, 0, 5, 5);
    TexturePaint tp = new TexturePaint(bi, r);

    g2D.setPaint(tp);
    g2D.fill(rec3);
    g2D.setColor(Color.green);
    g2D.fill(rec4);
    g2D.setColor(Color.red);
    g2D.fill(rec5);
}

From source file:net.rptools.maptool.util.PersistenceUtil.java

public static void saveToken(Token token, File file, boolean doWait) throws IOException {
    // Thumbnail/*from   w  w  w.  ja  v  a2  s . c o m*/
    BufferedImage image = null;
    if (doWait)
        image = ImageManager.getImageAndWait(token.getImageAssetId());
    else
        image = ImageManager.getImage(token.getImageAssetId());

    Dimension sz = new Dimension(image.getWidth(), image.getHeight());
    SwingUtil.constrainTo(sz, 50);
    BufferedImage thumb = new BufferedImage(sz.width, sz.height, BufferedImage.TRANSLUCENT);
    Graphics2D g = thumb.createGraphics();
    g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    g.drawImage(image, 0, 0, sz.width, sz.height, null);
    g.dispose();

    PackedFile pakFile = null;
    try {
        pakFile = new PackedFile(file);
        saveAssets(token.getAllImageAssets(), pakFile);
        pakFile.putFile(Token.FILE_THUMBNAIL, ImageUtil.imageToBytes(thumb, "png"));
        pakFile.setContent(token);
        pakFile.setProperty(PROP_VERSION, MapTool.getVersion());
        pakFile.save();
    } finally {
        if (pakFile != null)
            pakFile.close();
    }
}

From source file:eu.novait.imageresizer.helpers.ImageConverter.java

public void process() throws IOException {
    BufferedImage inImage = ImageIO.read(this.file);
    double ratio = (double) inImage.getWidth() / (double) inImage.getHeight();
    int w = this.width;
    int h = this.height;
    if (inImage.getWidth() >= inImage.getHeight()) {
        w = this.width;
        h = (int) Math.round(w / ratio);
    } else {/* w ww.j av a2 s .c  o m*/
        h = this.height;
        w = (int) Math.round(ratio * h);
    }
    int type = inImage.getType() == 0 ? BufferedImage.TYPE_INT_ARGB : inImage.getType();
    BufferedImage outImage = new BufferedImage(w, h, type);
    Graphics2D g = outImage.createGraphics();
    g.drawImage(inImage, 0, 0, w, h, null);
    g.dispose();
    String ext = FilenameUtils.getExtension(this.file.getAbsolutePath());
    String t = "jpg";
    switch (ext) {
    case "png":
        t = "png";
        break;
    }
    ImageIO.write(outImage, t, this.outputfile);
}

From source file:net.rptools.maptool.util.PersistenceUtil.java

static public void saveCampaignThumbnail(String fileName) {
    BufferedImage screen = MapTool.takeMapScreenShot(new PlayerView(MapTool.getPlayer().getRole()));
    if (screen == null)
        return;/*w ww.  ja  va  2  s  .  com*/

    Dimension imgSize = new Dimension(screen.getWidth(null), screen.getHeight(null));
    SwingUtil.constrainTo(imgSize, 200, 200);

    BufferedImage thumb = new BufferedImage(imgSize.width, imgSize.height, BufferedImage.TYPE_INT_BGR);
    Graphics2D g2d = thumb.createGraphics();
    g2d.drawImage(screen, 0, 0, imgSize.width, imgSize.height, null);
    g2d.dispose();

    File thumbFile = getCampaignThumbnailFile(fileName);

    try {
        ImageIO.write(thumb, "jpg", thumbFile);
    } catch (IOException ioe) {
        MapTool.showError("msg.error.failedSaveCampaignPreview", ioe);
    }
}