Example usage for java.awt.image BufferedImage getHeight

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

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Introduction

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

Prototype

public int getHeight()

Source Link

Document

Returns the height of the BufferedImage .

Usage

From source file:Main.java

public static byte[] getCompressedImage(byte[] rgb) {

    BufferedImage image;
    int width;/*from  w w  w.  ja va2 s . c  o  m*/
    int height;

    try {
        image = ImageIO.read(new ByteArrayInputStream(rgb));
        width = image.getWidth();
        height = image.getHeight();

        for (int i = 0; i < height; i++) {

            for (int j = 0; j < width; j++) {

                Color c = new Color(image.getRGB(j, i));
                int red = (int) (c.getRed() * 0.299);
                int green = (int) (c.getGreen() * 0.587);
                int blue = (int) (c.getBlue() * 0.114);
                Color newColor = new Color(red + green + blue,

                        red + green + blue, red + green + blue);

                image.setRGB(j, i, newColor.getRGB());
            }
        }

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ImageIO.write(image, "jpg", baos);
        baos.flush();
        byte[] imageInByte = baos.toByteArray();
        baos.close();

        return imageInByte;

    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

From source file:Main.java

/**
 * Changes the opacity of a given image.
 * @param src The source image.//from  w  ww.j  a va  2  s  .  c om
 * @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:net.duckling.ddl.util.ImageUtils.java

/**
 * ???/*from   www  . jav a 2  s  .com*/
 * @param tmpFilePath ?
 * @return
 */
public static boolean scare(String tmpFilePath) {
    try {
        BufferedImage src = ImageIO.read(new File(tmpFilePath)); // 
        int width = src.getWidth();
        int height = src.getHeight();
        if (width > DEFAULT_WIDTH) {
            height = (DEFAULT_WIDTH * height) / width;
            width = DEFAULT_WIDTH;
        }
        Image image = src.getScaledInstance(width, height, Image.SCALE_DEFAULT);
        BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics g = tag.getGraphics();
        g.drawImage(image, 0, 0, null); // ??
        g.dispose();
        File resultFile = new File(tmpFilePath);
        ImageIO.write(tag, "JPEG", resultFile);// ?
        return true;
    } catch (IOException e) {
        LOG.error(e);
    }
    return false;
}

From source file:at.gv.egiz.pdfas.common.utils.ImageUtils.java

public static BufferedImage convertRGBAToIndexed(BufferedImage src) {
    BufferedImage dest = new BufferedImage(src.getWidth(), src.getHeight(), BufferedImage.TYPE_BYTE_INDEXED);
    Graphics g = dest.getGraphics();
    g.setColor(new Color(231, 20, 189));
    g.fillRect(0, 0, dest.getWidth(), dest.getHeight()); // fill with a
    // hideous color
    // and make it
    // transparent
    dest = makeTransparent(dest, 0, 0);//  w  ww  .ja  va 2s  .  c  o  m
    dest.createGraphics().drawImage(src, 0, 0, null);
    return dest;
}

From source file:davmail.util.IOUtil.java

/**
 * Resize image to a max width or height image size.
 *
 * @param inputImage input image/*from ww  w  .j a  v  a 2  s . co  m*/
 * @param max        max size
 * @return scaled image
 */
public static BufferedImage resizeImage(BufferedImage inputImage, int max) {
    int width = inputImage.getWidth();
    int height = inputImage.getHeight();
    int targetWidth;
    int targetHeight;
    if (width <= max && height <= max) {
        return inputImage;
    } else if (width > height) {
        targetWidth = max;
        targetHeight = targetWidth * height / width;
    } else {
        targetHeight = max;
        targetWidth = targetHeight * width / height;
    }
    Image scaledImage = inputImage.getScaledInstance(targetWidth, targetHeight, Image.SCALE_SMOOTH);
    BufferedImage targetImage = new BufferedImage(targetWidth, targetHeight, BufferedImage.TYPE_INT_RGB);
    targetImage.getGraphics().drawImage(scaledImage, 0, 0, null);
    return targetImage;
}

From source file:Main.java

public static String getImageDimension(String imgLocation) throws Exception {
    BufferedImage image = null;
    try {/*from   www  .  j a v a  2s  . c o  m*/
        image = ImageIO.read(new URL(imgLocation));
    } catch (Exception e) {
        // If an error occurs, we consider the image as null. - FB
    }
    return (image == null ? "-1,-1" : image.getWidth() + "," + image.getHeight());
}

From source file:com.openkm.util.ImageUtils.java

/**
 * pointWithinRange/* ww w.j a  va2 s  .c o  m*/
 */
public static boolean pointWithinRange(Point p, BufferedImage img) {
    return !(p.x < 0 || p.y < 0 || p.x >= img.getWidth() || p.y >= img.getHeight());
}

From source file:com.openkm.util.ImageUtils.java

/**
 * cloneImage//from   w w  w . j av a2s .com
 */
public static BufferedImage clone(BufferedImage source) {
    BufferedImage img = new BufferedImage(source.getWidth(), source.getHeight(), BufferedImage.TYPE_INT_RGB);
    Graphics g = img.getGraphics();
    g.drawImage(source, 0, 0, null);
    g.dispose();
    return img;
}

From source file:com.partagames.imageresizetool.SimpleImageResizeTool.java

/**
 * Scales an image to the desired dimensions.
 *
 * @param img  Original image//from www . j a  v a 2  s .  c o  m
 * @param newW Target width
 * @param newH Target height
 * @return Scaled image
 */
public static BufferedImage scale(BufferedImage img, int newW, int newH) {
    int w = img.getWidth();
    int h = img.getHeight();
    final BufferedImage dimg = new BufferedImage(newW, newH, img.getType());
    final Graphics2D g = dimg.createGraphics();

    // use provided rendering hint, default is bilinear 
    switch (scalingHint) {
    case "n":
        g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
                RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
        break;
    case "b":
        g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        break;
    }

    g.drawImage(img, 0, 0, newW, newH, 0, 0, w, h, null);
    g.dispose();
    return dimg;
}

From source file:com.simiacryptus.mindseye.test.data.CIFAR10.java

private static LabeledObject<BufferedImage> toImage(final byte[] b) {
    @Nonnull
    final BufferedImage img = new BufferedImage(32, 32, BufferedImage.TYPE_INT_RGB);
    for (int x = 0; x < img.getWidth(); x++) {
        for (int y = 0; y < img.getHeight(); y++) {
            final int red = 0xFF & b[1 + 1024 * 0 + x + y * 32];
            final int blue = 0xFF & b[1 + 1024 * 1 + x + y * 32];
            final int green = 0xFF & b[1 + 1024 * 2 + x + y * 32];
            final int c = (red << 16) + (blue << 8) + green;
            img.setRGB(x, y, c);/*from  www  .j av  a2s .c o m*/
        }
    }
    return new LabeledObject<>(img, Arrays.toString(new byte[] { b[0] }));
}