Example usage for java.awt.image BufferedImage BufferedImage

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:imageprocessingproject.ImageHistogram.java

public static BufferedImage normalizeImage(BufferedImage image) {
    int height = image.getHeight();
    int width = image.getWidth();

    int r, g, b, minr = 255, ming = 255, minb = 255, maxr = 0, maxg = 0, maxb = 0;
    Color c;//from w ww.j ava  2s .  co  m

    BufferedImage tempImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

    for (int i = 0; i < width; i++) {
        for (int j = 0; j < height; j++) {
            c = new Color(image.getRGB(i, j));
            if (minr > c.getRed()) {
                minr = c.getRed();
            }
            if (ming > c.getGreen()) {
                ming = c.getGreen();
            }
            if (minb > c.getBlue()) {
                minb = c.getBlue();
            }
            if (maxr < c.getRed()) {
                maxr = c.getRed();
            }
            if (maxg < c.getGreen()) {
                maxg = c.getGreen();
            }
            if (maxb < c.getBlue()) {
                maxb = c.getBlue();
            }
        }
    }

    for (int i = 0; i < width; i++) {
        for (int j = 0; j < height; j++) {
            c = new Color(image.getRGB(i, j));
            r = (int) ((c.getRed() - minr) * 255 / (maxr - minr));
            g = (int) ((c.getGreen() - ming) * 255 / (maxg - ming));
            b = (int) ((c.getBlue() - minb) * 255 / (maxb - minb));
            tempImage.setRGB(i, j, new Color(r, g, b, c.getAlpha()).getRGB());
        }
    }

    return tempImage;
}

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From source file:Main.java

/**
 * Shrinks an image to fit into memory more
 * Effectively./*from   w  w  w .j  a va 2  s .  co m*/
 * @param src The source image.
 * @return
 */
public static BufferedImage imgUtilMinimizeNoAlpha(BufferedImage src) {
    if (src == null)
        return null;
    BufferedImage b = new BufferedImage(src.getWidth(), src.getHeight(), BufferedImage.TYPE_3BYTE_BGR);
    Graphics2D g = (Graphics2D) b.getGraphics();
    g.drawImage(src, 0, 0, null);
    g.dispose();
    return b;
}

---

From source file:Main.java

private static BufferedImage dye(BufferedImage image, Color color) {
    int w = image.getWidth();
    int h = image.getHeight();
    BufferedImage dyed = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = dyed.createGraphics();
    g.drawImage(image, 0, 0, null);//from   w ww  .  ja v  a2 s .  co m
    g.setComposite(AlphaComposite.SrcAtop);
    g.setColor(color);
    g.fillRect(0, 0, w, h);
    g.dispose();
    return dyed;
}

---

From source file:Main.java

public static Image resize(Image i, int scale) {
    BufferedImage resizedImage = new BufferedImage(scale, scale, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = resizedImage.createGraphics();
    g.drawImage(i, 0, 0, scale, scale, null);
    g.dispose();//from   ww  w.  ja  v  a  2  s .  c o  m
    g.setComposite(AlphaComposite.Src);
    g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    return resizedImage;
}

---

From source file:tourma.utils.web.WebStatistics.java

/**
 * /* w w w  .j ava  2s . co m*/
 */
public static String getHTML() {
    StringBuffer stats = new StringBuffer("");

    JPNStatistics jpn = new JPNStatistics();
    jpn.setSize(640, 480);
    JTabbedPane jtp = jpn.getTabbedPane();
    for (int i = 0; i < jtp.getTabCount(); i++) {
        Component comp = jtp.getComponent(i);

        if (comp instanceof ChartPanel) {
            ChartPanel panel = (ChartPanel) comp;
            panel.setSize(640, 480);
            BufferedImage buf = new BufferedImage(640, 480, BufferedImage.TYPE_INT_ARGB);
            Graphics g = buf.createGraphics();
            panel.print(g);
            g.dispose();

            //BufferedImage buf = toBufferedImage(img, 640, 480);
            String img_str = WebPicture.getPictureAsHTML(buf, 640, 480, true);
            stats.append(img_str);
        }

        if (comp instanceof JPanel) {
            // Find JList, Select All then Find ChartPanel
            JPanel pane = (JPanel) comp;
            ChartPanel panel = null;
            JList list = null;
            for (int j = 0; j < pane.getComponentCount(); j++) {
                Component c = pane.getComponent(j);
                if (c instanceof JScrollPane) {
                    for (int k = 0; k < ((JScrollPane) c).getViewport().getComponentCount(); k++) {
                        Component c2 = ((JScrollPane) c).getViewport().getComponent(k);
                        if (c2 instanceof JList) {
                            list = (JList) c2;
                        }

                    }
                }
            }

            if (list != null) {

                int start = 0;
                int end = list.getModel().getSize() - 1;
                if (end >= 0) {
                    list.setSelectionInterval(start, end);
                }

                jpn.updatePositions();
            }
            for (int j = 0; j < pane.getComponentCount(); j++) {
                Component c = pane.getComponent(j);
                if (c instanceof ChartPanel) {
                    panel = (ChartPanel) c;
                }
            }

            if (panel != null) {
                panel.setSize(640, 480);
                BufferedImage buf = new BufferedImage(640, 480, BufferedImage.TYPE_INT_ARGB);
                Graphics g = buf.createGraphics();
                panel.print(g);
                g.dispose();

                //BufferedImage buf = toBufferedImage(img, 640, 480);
                String img_str = WebPicture.getPictureAsHTML(buf, 640, 480, true);
                stats.append(img_str);
            }
        }
    }

    return stats.toString();
}

---

From source file:Main.java

/**
 * Creates an outline of an image,//from www. ja v  a2s  .com
 * with the default clipping rectangle.
 * @param src The source image.
 * @param c The color to outline the image
 * in.
 * @return
 */
public static BufferedImage imgUtilOutline(BufferedImage src, Color c) {
    if (src == null)
        return null;
    BufferedImage b = new BufferedImage(src.getWidth(), src.getHeight(), src.getType());
    Graphics2D g = (Graphics2D) b.getGraphics();
    g.setColor(c);
    g.drawRect(1, 1, src.getWidth() - 1, src.getHeight() - 1);
    g.drawImage(src, 0, 0, null);
    g.dispose();
    return b;
}

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From source file:Main.java

public void createThumbnail(File file) throws Exception {
    BufferedImage img = ImageIO.read(file);
    BufferedImage thumb = new BufferedImage(100, 200, BufferedImage.TYPE_INT_RGB);

    Graphics2D g2d = (Graphics2D) thumb.getGraphics();
    g2d.drawImage(img, 0, 0, thumb.getWidth() - 1, thumb.getHeight() - 1, 0, 0, img.getWidth() - 1,
            img.getHeight() - 1, null);//from   ww  w .j  ava2 s .  co  m
    g2d.dispose();
    ImageIO.write(thumb, "PNG", new File("thumb.png"));
}

---

From source file:Main.java

/**
 * Changes the opacity of a given image.
 * @param src The source image.//from w  ww .j a v  a  2 s. c o m
 * @param opacity The opacity to change to.
 * @return
 */
public static BufferedImage imgUtilAdjustImageTransparency(BufferedImage src, float opacity) {
    if (src == null)
        return null;
    AlphaComposite ac = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, opacity);
    BufferedImage cpy = new BufferedImage(src.getWidth(), src.getHeight(), BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = (Graphics2D) cpy.getGraphics();
    g.setComposite(ac);
    g.drawImage(src, 0, 0, null);
    g.dispose();
    return cpy;
}

---

From source file:Main.java

public static BufferedImage createRotatedTextImage(String text, int angle, Font ft) {
    Graphics2D g2d = null;/*from   ww w  . j  a  v a  2s .c  o  m*/
    try {
        if (text == null || text.trim().length() == 0) {
            return null;
        }

        BufferedImage stringImage = new BufferedImage(1, 1, BufferedImage.TYPE_INT_ARGB);

        g2d = (Graphics2D) stringImage.getGraphics();
        g2d.setFont(ft);

        FontMetrics fm = g2d.getFontMetrics();
        Rectangle2D bounds = fm.getStringBounds(text, g2d);

        TextLayout tl = new TextLayout(text, ft, g2d.getFontRenderContext());

        g2d.dispose();
        g2d = null;

        return createRotatedImage(tl, (int) bounds.getWidth(), (int) bounds.getHeight(), angle);
    } catch (Exception e) {
        e.printStackTrace();

        if (g2d != null) {
            g2d.dispose();
        }
    }

    return null;
}

---

From source file:BasicShapes.java

public void paint(Graphics g) {
    BufferedImage bimage = new BufferedImage(200, 200, BufferedImage.TYPE_BYTE_INDEXED);
    Graphics2D g2d = bimage.createGraphics();

    Color transparent = new Color(0, 0, 0, 0);
    g2d.setColor(transparent);// ww  w .  ja v  a  2  s.co  m
    g2d.setComposite(AlphaComposite.Src);
    g2d.fill(new Rectangle2D.Float(20, 20, 100, 20));
    g2d.dispose();

}

---

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