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:com.sketchy.utils.image.SketchyImage.java

public static BufferedImage toByteImage(BufferedImage image) {
    BufferedImage newImage = createByteImage(image.getWidth(), image.getHeight());
    Graphics2D graphics = newImage.createGraphics();
    graphics.setBackground(Color.white);
    graphics.fillRect(0, 0, image.getWidth(), image.getHeight());
    graphics.drawImage(image, 0, 0, null);
    return newImage;
}

From source file:net.sf.mcf2pdf.mcfelements.util.ImageUtil.java

/**
 * Rotates the given buffered image by the given angle, and returns a newly
 * created image, containing the rotated image.
 *
 * @param img Image to rotate./*from www .  ja  va  2  s. c om*/
 * @param angle Angle, in radians, by which to rotate the image.
 * @param drawOffset Receives the offset which is required to draw the image,
 * relative to the original (0,0) corner, so that the center of the image is
 * still on the same position.
 *
 * @return A newly created image containing the rotated image.
 */
public static BufferedImage rotateImage(BufferedImage img, float angle, Point drawOffset) {
    int w = img.getWidth();
    int h = img.getHeight();

    AffineTransform tf = AffineTransform.getRotateInstance(angle, w / 2.0, h / 2.0);

    // get coordinates for all corners to determine real image size
    Point2D[] ptSrc = new Point2D[4];
    ptSrc[0] = new Point(0, 0);
    ptSrc[1] = new Point(w, 0);
    ptSrc[2] = new Point(w, h);
    ptSrc[3] = new Point(0, h);

    Point2D[] ptTgt = new Point2D[4];
    tf.transform(ptSrc, 0, ptTgt, 0, ptSrc.length);

    Rectangle rc = new Rectangle(0, 0, w, h);

    for (Point2D p : ptTgt) {
        if (p.getX() < rc.x) {
            rc.width += rc.x - p.getX();
            rc.x = (int) p.getX();
        }
        if (p.getY() < rc.y) {
            rc.height += rc.y - p.getY();
            rc.y = (int) p.getY();
        }
        if (p.getX() > rc.x + rc.width)
            rc.width = (int) (p.getX() - rc.x);
        if (p.getY() > rc.y + rc.height)
            rc.height = (int) (p.getY() - rc.y);
    }

    BufferedImage imgTgt = new BufferedImage(rc.width, rc.height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2d = imgTgt.createGraphics();

    // create a NEW rotation transformation around new center
    tf = AffineTransform.getRotateInstance(angle, rc.getWidth() / 2, rc.getHeight() / 2);
    g2d.setTransform(tf);
    g2d.drawImage(img, -rc.x, -rc.y, null);
    g2d.dispose();

    drawOffset.x += rc.x;
    drawOffset.y += rc.y;

    return imgTgt;
}

From source file:net.sf.mcf2pdf.mcfelements.util.ImageUtil.java

/**
 * Loads the given CLP or SVG file and creates a BufferedImage with the given dimensions. As CLP files contain Vector images,
 * they can be scaled to every size needed. The contents are scaled to the given width and height, <b>not</b> preserving any
 * ratio of the image./*w  w  w .  j a va  2 s  .  c  om*/
 *
 * @param clpFile CLP or SVG file.
 * @param widthPixel The width, in pixels, the resulting image shall have.
 * @param heightPixel The height, in pixels, the resulting image shall have.
 *
 * @return An image displaying the contents of the loaded CLP file.
 *
 * @throws IOException If any I/O related problem occurs reading the file.
 */
public static BufferedImage loadClpFile(File clpFile, int widthPixel, int heightPixel) throws IOException {
    FileInputStream fis = new FileInputStream(clpFile);
    ClpInputStream cis = null;
    InputStream in = clpFile.getName().toLowerCase().endsWith(".clp") ? (cis = new ClpInputStream(fis)) : fis;

    UserAgentAdapter userAgentAdapter = new UserAgentAdapter();
    BridgeContext bridgeContext = new BridgeContext(userAgentAdapter);

    SVGDocument svgDocument;
    GraphicsNode rootSvgNode;
    try {
        String parser = XMLResourceDescriptor.getXMLParserClassName();
        SAXSVGDocumentFactory factory = new SAXSVGDocumentFactory(parser);
        svgDocument = (SVGDocument) factory.createDocument(clpFile.toURI().toString(),
                new InputStreamReader(in, "ISO-8859-1"));
        rootSvgNode = getRootNode(svgDocument, bridgeContext);
    } finally {
        IOUtils.closeQuietly(cis);
        IOUtils.closeQuietly(fis);
    }

    float[] vb = ViewBox.parseViewBoxAttribute(svgDocument.getRootElement(),
            svgDocument.getRootElement().getAttribute("viewBox"), bridgeContext);

    AffineTransform usr2dev = ViewBox.getPreserveAspectRatioTransform(vb,
            SVGPreserveAspectRatio.SVG_PRESERVEASPECTRATIO_NONE, true, widthPixel, heightPixel);

    BufferedImage img = new BufferedImage(widthPixel, heightPixel, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2d = img.createGraphics();

    g2d.setColor(new Color(0.0f, 0.0f, 0.0f, 0.0f));
    g2d.fillRect(0, 0, widthPixel, heightPixel);
    g2d.transform(usr2dev);

    // fixes "Graphics2D from BufferedImage lacks BUFFERED_IMAGE hint" - part 1
    final Object oldBufferedImage = g2d.getRenderingHint(RenderingHintsKeyExt.KEY_BUFFERED_IMAGE);
    g2d.setRenderingHint(RenderingHintsKeyExt.KEY_BUFFERED_IMAGE, new WeakReference<BufferedImage>(img));
    rootSvgNode.paint(g2d);
    // fixes "Graphics2D from BufferedImage lacks BUFFERED_IMAGE hint" - part 2
    if (oldBufferedImage != null)
        g2d.setRenderingHint(RenderingHintsKeyExt.KEY_BUFFERED_IMAGE, oldBufferedImage);
    else
        g2d.getRenderingHints().remove(RenderingHintsKeyExt.KEY_BUFFERED_IMAGE);

    g2d.dispose();
    return img;
}

From source file:fr.gael.dhus.datastore.processing.impl.ProcessingUtils.java

/**
 * Cut the quicklook that have a big width/height ratio.
 * Each sub-part is dispatched on multiple bands.
 *
 * @param quick_look the quick_look to be cut
 * @param max_ratio the maximum ratio between quick_look width and height.
 * @param margin the margin between each band. default 5.
 *///from  www .  ja  va2s .c o  m
public static RenderedImage cutQuickLook(RenderedImage input_image, double max_ratio, int margin) {
    ColorModel color_model = input_image.getColorModel();
    if ((color_model == null) && (input_image.getSampleModel() != null)) {
        color_model = ColorRenderer.createColorModel(input_image.getSampleModel());
    }

    BufferedImage quick_look;
    try {
        quick_look = PlanarImage.wrapRenderedImage(input_image).getAsBufferedImage(
                new Rectangle(input_image.getWidth(), input_image.getHeight()), color_model);
    } catch (Exception e) {
        logger.error("Problem getting buffered image.", e);
        throw new IllegalArgumentException("Problem getting buffered image", e);
    }

    if ((quick_look != null) && ((quick_look.getWidth() > 0) && (quick_look.getHeight() > 0))) {
        //Compute width/height ratio
        int ql_width = quick_look.getWidth();
        int ql_height = quick_look.getHeight();
        int ratio = (int) Math.sqrt(Math.max(ql_width, ql_height) / Math.min(ql_width, ql_height));

        //Check if the quicklook has a strong width/height ratio
        if ((ratio < max_ratio) || (ratio <= 1))
            return PlanarImage.wrapRenderedImage(quick_look);

        /**
         * Cut the wider side (width or height) into "ratio" bands.
         * Ex: If height = 3 * width then we cut 3 bands along columns
         *     So height' = height / 3   (extract 1 band / 3 from height)
         *        width'  = width  * 3   (dispatch 3 bands along lines)
         */
        int width = ql_width; //width of the bands
        int height = ql_height; //height of the bands

        if (ql_width < ql_height) //cut along height
        {
            width = (ql_width + margin) * ratio;
            height = ql_height / ratio;
        } else //cut along width
        {
            width = ql_width / ratio;
            height = (ql_height + margin) * ratio;
        }

        //Dispatch the sub-parts
        BufferedImage quick_look_cut = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = quick_look_cut.createGraphics();

        for (int k = 0; k < ratio; k++) {
            BufferedImage ql_band = null;
            //Dispatch on columns
            if (ql_width < ql_height) {
                ql_band = quick_look.getSubimage(0, (k * ql_height) / ratio, ql_width, ql_height / ratio);
                g2.drawImage(ql_band, null, k * (ql_width + margin), 0);
            }
            //Dispatch on lines
            else {
                ql_band = quick_look.getSubimage((k * ql_width) / ratio, 0, ql_width / ratio, ql_height);
                g2.drawImage(ql_band, null, 0, k * (ql_height + margin));
            }
        } //for each band

        g2.dispose();
        return PlanarImage.wrapRenderedImage(quick_look_cut);
    }
    return PlanarImage.wrapRenderedImage(quick_look);
}

From source file:editeurpanovisu.ReadWriteImage.java

public static void writeTiff(Image imgImage, String strNomFich, boolean bSharpen, float sharpenLevel)
        throws ImageReadException, IOException {
    File file = new File(strNomFich);
    BufferedImage imageRGBSharpen = null;
    BufferedImage imageRGB = SwingFXUtils.fromFXImage(imgImage, null);

    Graphics2D graphics = imageRGB.createGraphics();
    graphics.drawImage(imageRGB, 0, 0, null);
    if (bSharpen) {
        imageRGBSharpen = new BufferedImage(imageRGB.getWidth(), imageRGB.getHeight(),
                BufferedImage.TYPE_INT_RGB);
        Kernel kernel = new Kernel(3, 3, sharpenMatrix);
        ConvolveOp cop = new ConvolveOp(kernel, ConvolveOp.EDGE_NO_OP, null);
        cop.filter(imageRGB, imageRGBSharpen);
    }/*from   w  w w.j a  va2 s  .  co  m*/

    final ImageFormat format = ImageFormats.TIFF;
    final Map<String, Object> params = new HashMap<>();
    params.put(ImagingConstants.PARAM_KEY_COMPRESSION,
            new Integer(TiffConstants.TIFF_COMPRESSION_UNCOMPRESSED));

    if (bSharpen) {
        try {
            Imaging.writeImage(imageRGBSharpen, file, format, params);
        } catch (ImageWriteException ex) {
            Logger.getLogger(ReadWriteImage.class.getName()).log(Level.SEVERE, null, ex);
        }
    } else {
        try {
            Imaging.writeImage(imageRGB, file, format, params);
        } catch (ImageWriteException ex) {
            Logger.getLogger(ReadWriteImage.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

}

From source file:common.utils.ImageUtils.java

/**
 *
 * @param src images to draw, they must be resized to an appropriate size
 * @param dst image where given images will be drawen
 *///  w w w. ja  va  2 s  . c  om
public static void draw4on1(BufferedImage[] src, BufferedImage dst) {
    Graphics2D g2 = dst.createGraphics();
    g2.setColor(java.awt.Color.WHITE);
    g2.fillRect(0, 0, dst.getWidth(), dst.getHeight());
    int dxi;
    int dyi = 0;

    int x0 = dst.getWidth() - 5;
    int y0 = 5;
    int x = x0;
    int y = y0;
    for (int i = 0; i < src.length; i++) {
        if (i % 2 == 0) {
            dxi = -10;
        } else {
            dxi = 0;
        }
        //g2.draw3DRect(dx - 1 , dy-tmp_bi.getHeight() - 1, tmp_bi.getWidth() + 1 , tmp_bi.getHeight() + 1, true);
        g2.drawImage(src[i], x - src[i].getWidth() + dxi, y + dyi, null);
        g2.drawString("#" + i, x - src[i].getWidth() + dxi, y + dyi + 20);
        //g2.rotate(Math.toRadians(4));
        y = y + src[i].getHeight() / 2;
        if (y > dst.getHeight() - src[i].getHeight()) {
            y = y0;
            if (dyi == 0)
                dyi = 10;
            else
                dyi = 0;
            if (x < src[i].getWidth()) {
                x = dst.getWidth();
            }
            x = x - src[i].getWidth() / 2;
        }
    }
    g2.setColor(Color.gray);
    g2.drawRect(0, 0, dst.getWidth() - 1, dst.getHeight() - 1);
    g2.dispose();
}

From source file:common.utils.ImageUtils.java

/**
  * resize input image to new dinesions(only smaller) into rez parameter
  * @param image input image for scaling
 * @param rez resulting image. must have required width and height
 * @throws IOException/* w w  w.  ja v  a 2  s .c om*/
  */
public static void getScaledImageDimmension(BufferedImage image, BufferedImage rez) throws IOException {
    Graphics2D g2 = rez.createGraphics();
    if (rez.getHeight() > image.getHeight() || rez.getWidth() > image.getWidth()) {
        //rez image is bigger no resize
        g2.drawImage(image, 0, 0, null);
        return;
    }
    //1-st getting first side to resize (width or height)
    double scale_factor;
    if (getScaling(image.getHeight(), rez.getHeight()) > getScaling(image.getWidth(), rez.getWidth())) {
        //resize height
        scale_factor = getScaling(image.getHeight(), rez.getHeight());
        int width = (int) (scale_factor * image.getWidth());
        //cut width
        int x = (rez.getWidth() - width) / 2;
        g2.drawImage(image.getScaledInstance(width, rez.getHeight(), Image.SCALE_SMOOTH), x, 0, null);
        //System.out.println("resizing height: h="+image.getHeight()+"/"+rez.getHeight()+"; x="+x);
    } else {
        //resize width
        scale_factor = getScaling(image.getWidth(), rez.getWidth());
        int height = (int) (scale_factor * image.getHeight());
        //cut height
        int y = (rez.getHeight() - height) / 2;
        g2.drawImage(image.getScaledInstance(rez.getWidth(), height, Image.SCALE_SMOOTH), 0, y, null);
        //System.out.println("resizing width: w="+image.getWidth()+"/"+rez.getWidth()+"; y="+y);
    }
    g2.dispose();
}

From source file:com.sun.socialsite.util.ImageUtil.java

public static BufferedImage getScaledImage(BufferedImage origImage, Integer desiredWidth, Integer desiredHeight)
        throws IOException {

    if (origImage == null) {
        return null;
    }/*from   ww w  .  j  av a2  s  . c o  m*/

    if (desiredWidth == null) {
        desiredWidth = origImage.getWidth();
    }

    if (desiredHeight == null) {
        desiredHeight = origImage.getHeight();
    }

    int origWidth = origImage.getWidth();
    int origHeight = origImage.getHeight();

    double ratio = Math.min((((double) desiredWidth) / origWidth), (((double) desiredHeight) / origHeight));

    int extraWidth = desiredWidth - ((int) (origWidth * ratio));
    int extraHeight = desiredHeight - ((int) (origHeight * ratio));

    int tmpWidth = (desiredWidth - extraWidth);
    int tmpHeight = (desiredHeight - extraHeight);
    BufferedImage tmpImage = getScaledInstance(origImage, tmpWidth, tmpHeight,
            RenderingHints.VALUE_INTERPOLATION_BICUBIC, true);

    log.debug(String.format("tmpImage[width=%d height=%d", tmpImage.getWidth(), tmpImage.getHeight()));

    if ((tmpImage.getWidth() == desiredWidth) && (tmpImage.getHeight() == desiredHeight)) {
        return tmpImage;
    } else {
        BufferedImage scaledImage = new BufferedImage(desiredWidth, desiredHeight, BufferedImage.TYPE_INT_ARGB);
        Graphics2D g2d = scaledImage.createGraphics();
        g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);

        // We recalculate these in case scaling didn't quite hit its targets
        extraWidth = desiredWidth - tmpImage.getWidth();
        extraHeight = desiredHeight - tmpImage.getHeight();

        int dx1 = extraWidth / 2;
        int dy1 = extraHeight / 2;
        int dx2 = desiredWidth - dx1;
        int dy2 = desiredWidth - dy1;

        // transparent background
        g2d.setColor(new Color(0, 0, 0, 0));
        g2d.fillRect(0, 0, desiredWidth, desiredHeight);

        g2d.drawImage(tmpImage, dx1, dy1, dx2, dy2, null);
        return scaledImage;
    }
}

From source file:imageLines.ImageHelpers.java

/**Scale an image to the specified width and height*/
public static BufferedImage scale(BufferedImage img, int height, int width) {

    BufferedImage bdest = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    Graphics2D g = bdest.createGraphics();
    AffineTransform at = AffineTransform.getScaleInstance((double) width / img.getWidth(),
            (double) height / img.getHeight());
    g.drawRenderedImage(img, at);/*from w ww  . j a  va2s .  c o  m*/
    return bdest;

}

From source file:juicebox.tools.utils.juicer.apa.APAPlotter.java

/**
 * Method for plotting apa data/*from w  w w. j  a  v a2s  . c o  m*/
 *
 * @param data       for heat map
 * @param axesRange  initial values and increments to annotate axes [x0, dx, y0, dy]
 * @param outputFile where image will saved
 */
public static void plot(RealMatrix data, int[] axesRange, File outputFile, String title) {

    APARegionStatistics apaStats = new APARegionStatistics(data);
    DecimalFormat df = new DecimalFormat("0.000");
    title += ", P2LL = " + df.format(apaStats.getPeak2LL());

    // initialize heat map
    HeatChart map = new HeatChart(data.getData());
    map.setLowValueColour(Color.WHITE);
    map.setHighValueColour(Color.RED);
    map.setXValues(axesRange[0], axesRange[1]);
    map.setYValues(axesRange[2], axesRange[3]);
    map.setTitle(title);

    try {
        // calculate dimensions for plot wrapper
        initializeSizes(map);

        // create blank white image
        BufferedImage apaImage = new BufferedImage(fullWidth, fullHeight, BufferedImage.TYPE_INT_ARGB);
        Graphics2D g2 = apaImage.createGraphics();
        g2.setBackground(Color.WHITE);
        g2.fillRect(0, 0, fullWidth, fullHeight);

        // plot in heat map, color bar, etc
        g2.drawImage(map.getChartImage(), 0, 0, heatmapWidth, fullHeight, null);
        drawHeatMapBorder(g2, map);
        plotColorScaleBar(g2);
        plotColorScaleValues(g2, map);

        // top left, top right, bottom left, bottom right values (from apa)

        drawCornerRegions(g2, map, new Dimension(APA.regionWidth, APA.regionWidth),
                apaStats.getRegionCornerValues());

        // save data
        ImageIO.write(apaImage, "png", outputFile);

    } catch (IOException e) {
        e.printStackTrace();
    }
}