Example usage for javax.imageio ImageIO read

List of usage examples for javax.imageio ImageIO read

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Introduction

In this page you can find the example usage for javax.imageio ImageIO read.

Prototype

public static BufferedImage read(ImageInputStream stream) throws IOException

Source Link

Document

Returns a BufferedImage as the result of decoding a supplied ImageInputStream with an ImageReader chosen automatically from among those currently registered.

Usage

From source file:Main.java

public MyPanel() throws Exception {
    setLayout(new FlowLayout());
    int size = 100;

    URL url = new URL("http://www.java2s.com/style/download.png");
    BufferedImage bi = ImageIO.read(url);

    Image left = createImage(size, Color.YELLOW);

    Image merged = merge(left, bi);

    add(new JLabel(new ImageIcon(merged)));
}

From source file:exemplos.PegandoPixelsSemJAI.java

public void pegaPixel() throws IOException {

    File f = new File("D:\\ProjetosNetBeans\\PDI\\src\\imagens\\ebola.png"); //seleciona o arquivo
    BufferedImage image = ImageIO.read(f); //le o arquivo
    System.out.println("Dimenses: " + image.getWidth() + "x" + image.getHeight() + "pixels"); //exibe suas dimenses

    Raster raster = image.getRaster(); //pega os valores dos pixels
    double pixel[] = new double[3]; //cria um array com 3 posies
    int brancos = 0; //cria uma varivel para contar os pixels brancos
    for (int h = 0; h < image.getHeight(); h++)
        for (int w = 0; w < image.getWidth(); w++) {
            raster.getPixel(w, h, pixel);
            if ((pixel[0] == 255) && (pixel[1] == 255) && (pixel[2] == 255))//confirma se o RGB  igual a 255, ou seja, branco
                brancos++;/*from w ww. ja  v a 2 s. c  o m*/

        }

}

From source file:com.github.carlomicieli.nerdmovies.utility.ImageUtils.java

private static BufferedImage convertToImage(MultipartFile file) throws IOException {
    InputStream in = new ByteArrayInputStream(file.getBytes());
    return ImageIO.read(in);
}

From source file:Main.java

/**
 * Set the icon if a window.//  w ww  .  j  a  va2s .co  m
 *
 * @param window Window to change the icon of.
 * @param imageInputStream Input stream of the image.
 */
public static void setWindowIcon(Window window, InputStream imageInputStream) {
    try {
        // Load the image and set the window icon
        window.setIconImage(ImageIO.read(imageInputStream));

    } catch (IOException | NullPointerException e) {
        System.out.println("Failed to set window icon.");
    }
}

From source file:Main.java

/**
 * Set the icon if a dialog.//from  w w  w  .ja va2s  . c o  m
 *
 * @param dialog Dialog to change the icon of.
 * @param imageInputStream Input stream of the image.
 */
public static void setDialogIcon(JDialog dialog, InputStream imageInputStream) {
    try {
        // Load the image and set the window icon
        dialog.setIconImage(ImageIO.read(imageInputStream));

    } catch (IOException | NullPointerException e) {
        System.out.println("Failed to set window icon.");
    }
}

From source file:ml.hsv.java

public static hsv[][] img2RGB2HSV(String ip) throws IOException {
    BufferedImage image;//from   w  w  w .j  a  v  a 2  s.c  o m
    int width, height;

    File input = new File(ip);
    image = ImageIO.read(input);
    width = image.getWidth();
    height = image.getHeight();

    hsv hsvImage[][] = new hsv[height][width];

    for (int i = 0; i < height; i++) {
        for (int j = 0; j < width; j++) {
            Color c = new Color(image.getRGB(j, i));
            hsvImage[i][j] = new hsv(c.getRed(), c.getGreen(), c.getBlue());
        }
    }

    HSV2File(hsvImage, width, height);

    return hsvImage;
}

From source file:net.sf.nmedit.jtheme.JTCursor.java

private static Cursor createCursor(int id) {
    Toolkit tk = Toolkit.getDefaultToolkit();
    URL res = getResource(id);/* ww w  .  j a  v  a2 s .c  o m*/

    if (res == null) {
        Log log = LogFactory.getLog(JTCursor.class);
        if (log.isWarnEnabled()) {
            log.warn("Could not find cursor: id=" + id + ", url=" + res);
        }
        return Cursor.getDefaultCursor();
    }

    Image img;
    try {
        img = ImageIO.read(res);
    } catch (IOException e) {
        Log log = LogFactory.getLog(JTCursor.class);
        if (log.isWarnEnabled()) {
            log.warn("Could not find cursor: id=" + id + ", url=" + res, e);
        }
        return Cursor.getDefaultCursor();
    }

    return tk.createCustomCursor(img, new Point(4, 16), names[id]);
}

From source file:com.quartercode.disconnected.util.LocationGenerator.java

/**
 * Generates the given amount of locations on an earth map, ignoring the given ignore locations.
 * /*  ww  w  .j  a  va 2 s. c  om*/
 * @param amount The amount of locations to generate.
 * @return The generated locations.
 * @throws RuntimeException The map image can't be read.
 */
public static List<Location> generateLocations(int amount, List<Location> ignore) {

    Validate.isTrue(amount > 0, "Generation amount must be > 0: ", amount);

    if (map == null) {
        try {
            map = ImageIO.read(LocationGenerator.class.getResource("/data/map.png"));
        } catch (IOException e) {
            throw new RuntimeException("Can't read map data image", e);
        }
    }

    if (ignore == null) {
        ignore = new ArrayList<Location>();
    }

    int width = map.getWidth();
    int height = map.getHeight();

    List<Location> result = new ArrayList<Location>();
    RandomPool random = new RandomPool(100);
    int blackRGB = Color.BLACK.getRGB();
    while (result.size() < amount) {
        int x = random.nextInt(width);
        int y = random.nextInt(height);
        if (map.getRGB(x, y) == blackRGB) {
            Location location = new Location((float) x / (float) width, (float) y / (float) height);
            if (!ignore.contains(location) && !result.contains(location)) {
                result.add(location);
            }
        }
    }

    return result;
}

From source file:ScrollPaneWatermark.java

public void setForegroundBadge(URL url) throws IOException {
    fgimage = ImageIO.read(url);
}

From source file:de.mprengemann.intellij.plugin.androidicons.images.ImageUtils.java

public static void updateImage(JLabel imageContainer, File imageFile) {
    if (!imageFile.exists()) {
        return;/*from  www .  j  av a2s . c  o m*/
    }
    BufferedImage img = null;
    try {
        img = ImageIO.read(imageFile);
    } catch (IOException e) {
        e.printStackTrace();
    }
    if (img == null) {
        return;
    }
    int imageWidth = img.getWidth();
    int imageHeight = img.getHeight();
    int imageViewWidth = imageContainer.getWidth();
    int imageViewHeight = imageContainer.getHeight();
    double factor = getScaleFactorToFit(new Dimension(imageWidth, imageHeight),
            new Dimension(imageViewWidth, imageViewHeight));
    factor = Math.min(factor, 1f);
    imageWidth = (int) (factor * imageWidth);
    imageHeight = (int) (factor * imageHeight);
    if (imageWidth <= 0 || imageHeight <= 0 || imageViewWidth <= 0 || imageViewHeight <= 0) {
        return;
    }
    BufferedImage tmp = UIUtil.createImage(imageViewWidth, imageViewHeight, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = tmp.createGraphics();
    g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    int x = (imageViewWidth - imageWidth) / 2;
    int y = (imageViewHeight - imageHeight) / 2;
    g2.drawImage(img, x, y, imageWidth, imageHeight, null);
    g2.dispose();
    imageContainer.setIcon(new ImageIcon(tmp));
}