Example usage for java.awt.image BufferedImage getWidth

Introduction

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

Prototype

public int getWidth()

Source Link

Document

Returns the width of the BufferedImage .

Usage

From source file:Main.java

public static BufferedImage scaleImage(BufferedImage img, int width, int height, Color background) {
    int imgWidth = img.getWidth();
    int imgHeight = img.getHeight();
    if (imgWidth * height < imgHeight * width) {
        width = imgWidth * height / imgHeight;
    } else {// www.  j  a  va2 s .  c o m
        height = imgHeight * width / imgWidth;
    }
    BufferedImage newImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = newImage.createGraphics();
    try {
        g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
        g.setBackground(background);
        g.clearRect(0, 0, width, height);
        g.drawImage(img, 0, 0, width, height, null);
    } finally {
        g.dispose();
    }
    return newImage;
}

From source file:Main.java

protected static boolean testNeighbour(BufferedImage source, int x, int y, boolean alpha) {
    if (x >= 0 && y >= 0 && x < source.getWidth() && y < source.getHeight()) {
        int gray = source.getRGB(x, y) & 0x000000ff;
        int alphaI = (source.getRGB(x, y) & 0xff000000) >>> 24;
        return (alpha && alphaI == 0) || (!alpha && gray == 255);
    }//from  ww w.  j  a  va2 s  .  c  o  m
    return true;
}

From source file:com.cisco.surf.jenkins.plugins.jenkow.tests.DiagramGeneration.DiagramTest.java

private static String getGeo(BufferedImage img) {
    return img.getWidth() + "x" + img.getHeight();
}

From source file:Transparency.java

public static BufferedImage makeImageTranslucent(BufferedImage source, double alpha) {
    BufferedImage target = new BufferedImage(source.getWidth(), source.getHeight(),
            java.awt.Transparency.TRANSLUCENT);
    // Get the images graphics
    Graphics2D g = target.createGraphics();
    // Set the Graphics composite to Alpha
    g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, (float) alpha));
    // Draw the image into the prepared reciver image
    g.drawImage(source, null, 0, 0);/*w ww. j a  v a  2s  .c  om*/
    // let go of all system resources in this Graphics
    g.dispose();
    // Return the image
    return target;
}

From source file:Main.java

/**
 * Creates a shadow mask//from w  ww  . ja va2s.co m
 * @param image
 * @param shadowColor
 * @param shadowOpacity
 * @return
 */
private static BufferedImage createShadowMask(BufferedImage image, Color shadowColor, float shadowOpacity) {
    BufferedImage mask = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_ARGB);

    Graphics2D g2d = mask.createGraphics();
    g2d.drawImage(image, 0, 0, null);
    g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_IN, shadowOpacity));
    g2d.setColor(shadowColor);
    g2d.fillRect(0, 0, image.getWidth(), image.getHeight());
    g2d.dispose();

    return mask;
}

From source file:Main.java

/**
 * Applies a {@link BufferedImageOp} on the given {@link BufferedImage}.
 *
 * @param source The source image.//from   w w  w  .  j av a2 s.  co  m
 * @param op     The operation to perform.
 * @return A new image with the operation performed.
 */
public static BufferedImage operatedImage(BufferedImage source, BufferedImageOp op) {
    BufferedImage newImage = newArgbBufferedImage(source.getWidth(), source.getHeight());
    Graphics2D g = (Graphics2D) newImage.getGraphics();
    g.drawImage(source, op, 0, 0);
    return newImage;
}

From source file:Main.java

/**
 * Fills the given {@link BufferedImage} with a {@link Paint}, preserving its alpha channel.
 *
 * @param source The source image.//  ww  w  .jav  a  2  s. co  m
 * @param paint  The paint to fill with.
 * @return A new, painted/filled image.
 */
public static BufferedImage filledImage(BufferedImage source, Paint paint) {
    BufferedImage newImage = newArgbBufferedImage(source.getWidth(), source.getHeight());
    Graphics2D g = (Graphics2D) newImage.getGraphics();
    g.drawImage(source, 0, 0, null);
    g.setComposite(AlphaComposite.SrcAtop);
    g.setPaint(paint);
    g.fillRect(0, 0, source.getWidth(), source.getHeight());
    return newImage;
}

From source file:Main.java

/**
 * This method cleans input image by replacing
 * all non black pixels with white pixels
 * @param image - input image that will be cleaned
 * @return - cleaned input image as BufferedImage
 *//*from  w w w . j av a 2  s . co  m*/
public static BufferedImage blackAndWhiteCleaning(BufferedImage image) {
    for (int j = 0; j < image.getHeight(); j++) {
        for (int i = 0; i < image.getWidth(); i++) {
            if (image.getRGB(i, j) != -16777216) {
                image.setRGB(i, j, -1);
            }
        }
    }
    return image;
}

From source file:Main.java

/**
 * Quickly copies an image./*from  w w w .ja v  a2s  .c o m*/
 * @param src The source image.
 * @return The replicated image.
 */
public static BufferedImage imgUtilFastCopy(BufferedImage src) {
    if (src == null)
        return null;
    BufferedImage b = new BufferedImage(src.getWidth(), src.getHeight(), src.getType());
    b.setData(src.getRaster());
    return b;
}

From source file:Main.java

public static double meanValue(BufferedImage image) {
    Raster raster = image.getRaster();
    double sum = 0.0;

    for (int y = 0; y < image.getHeight(); ++y) {
        for (int x = 0; x < image.getWidth(); ++x) {
            sum += raster.getSample(x, y, 0);
        }// w w w  .j av a  2  s. c o  m
    }
    return sum / (image.getWidth() * image.getHeight());
}