Example usage for java.awt.image BufferedImage TYPE_BYTE_GRAY

Introduction

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

Prototype

int TYPE_BYTE_GRAY

To view the source code for java.awt.image BufferedImage TYPE_BYTE_GRAY.

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Document

Represents a unsigned byte grayscale image, non-indexed.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    int size = 120;
    int pad = 10;
    BufferedImage bi = new BufferedImage(size, size, BufferedImage.TYPE_INT_RGB);
    Graphics g = bi.createGraphics();
    g.setColor(Color.WHITE);/*from   w w w. java2s  .  c  om*/
    g.fillRect(0, 0, size, size);
    g.setColor(Color.YELLOW);
    g.fillOval(pad, pad, size - (2 * pad), size - (2 * pad));
    g.dispose();

    BufferedImage image2 = new BufferedImage(bi.getWidth(), bi.getHeight(), BufferedImage.TYPE_BYTE_GRAY);

    ColorConvertOp op = new ColorConvertOp(bi.getColorModel().getColorSpace(),
            image2.getColorModel().getColorSpace(), null);
    op.filter(bi, image2);
    ImageIO.write(image2, "png", new File("c:/Java_Dev/image2.png"));
}

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From source file:Main.java

static BufferedImage average(BufferedImage[] images) {
    BufferedImage average = new BufferedImage(images[0].getWidth(), images[0].getHeight(),
            BufferedImage.TYPE_BYTE_GRAY);
    WritableRaster raster = average.getRaster().createCompatibleWritableRaster();
    for (int k = 0; k < images[0].getHeight(); ++k) {
        for (int j = 0; j < images[0].getWidth(); ++j) {
            float sum = 0.0f;
            for (int i = 0; i < images.length; ++i) {
                sum = sum + images[i].getRaster().getSample(j, k, 0);
            }/*from   ww w . j a  v  a  2 s.c  o m*/
            raster.setSample(j, k, 0, Math.round(sum / images.length));
        }
    }
    average.setData(raster);
    return average;
}

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From source file:Main.java

public static BufferedImage convert2grey(BufferedImage image) {
    BufferedImage grey = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_BYTE_GRAY);
    Graphics g = grey.getGraphics();
    g.drawImage(image, 0, 0, null);/*from  ww w  .  j a v a 2s .  c o m*/
    g.dispose();
    BufferedImage rgb = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_RGB);
    g = rgb.getGraphics();
    g.drawImage(grey, 0, 0, null);
    g.dispose();
    return rgb;
}

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From source file:GrayImage.java

public void paint(Graphics g) {
    Image myImage = new ImageIcon("yourImage.png").getImage();
    BufferedImage bufferedImage = new BufferedImage(myImage.getHeight(this), myImage.getWidth(this),
            BufferedImage.TYPE_BYTE_GRAY);

    Graphics gi = bufferedImage.getGraphics();
    gi.drawImage(myImage, 0, 0, null);/*from  w ww  .ja  v  a 2s  .  c om*/
    gi.dispose();

    Graphics2D g2d = (Graphics2D) g;
    g2d.drawImage(bufferedImage, null, 0, 0);
}

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From source file:BlurredImage.java

public void paint(Graphics g) {
    try {//from   www.jav a 2  s  . co m
        BufferedImage myImage = ImageIO.read(this.getClass().getResource("redrock.png"));

        BufferedImage filteredImage = new BufferedImage(myImage.getWidth(null), myImage.getHeight(null),
                BufferedImage.TYPE_BYTE_GRAY);

        Graphics g1 = filteredImage.getGraphics();
        g1.drawImage(myImage, 400, 200, null);

        float[] blurKernel = { 1 / 9f, 1 / 9f, 1 / 9f, 1 / 9f, 1 / 9f, 1 / 9f, 1 / 9f, 1 / 9f, 1 / 9f };

        BufferedImageOp blur = new ConvolveOp(new Kernel(3, 3, blurKernel));
        myImage = blur.filter(myImage, null);
        g1.dispose();

        Graphics2D g2d = (Graphics2D) g;
        g2d.drawImage(myImage, null, 3, 3);
    } catch (Exception e) {

    }
}

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From source file:arlocros.Imshow.java

/**
 * @param opencvImage/*from   w ww  . j a v  a 2s.  com*/
 */
public static void show(Mat opencvImage) {

    Dimension frameSize = new Dimension(opencvImage.rows(), opencvImage.cols());
    if (frame == null) {
        frame = new Imshow("", frameSize.height, frameSize.width);
        frame.Window.setVisible(true);

        frame.Window.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        if (frame.SizeCustom) {
            Imgproc.resize(opencvImage, opencvImage, new Size(frame.Height, frame.Width));
        }
    }
    BufferedImage bufImage = null;
    try {

        int type = BufferedImage.TYPE_BYTE_GRAY;
        if (opencvImage.channels() > 1) {
            type = BufferedImage.TYPE_3BYTE_BGR;
        }
        int bufferSize = opencvImage.channels() * opencvImage.cols() * opencvImage.rows();
        byte[] b = new byte[bufferSize];
        opencvImage.get(0, 0, b);
        BufferedImage bufferedImage = new BufferedImage(opencvImage.cols(), opencvImage.rows(), type);
        final byte[] targetPixels = ((DataBufferByte) bufferedImage.getRaster().getDataBuffer()).getData();
        System.arraycopy(b, 0, targetPixels, 0, b.length);
        bufImage = bufferedImage;
        frame.image.setImage(bufImage);
        frame.Window.pack();
        frame.label.updateUI();
        //frame.Window.setVisible(true);
    } catch (RuntimeException e) {
        logger.info("Exception while visualizing.", e);
    }
}

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From source file:org.apache.xmlgraphics.image.writer.internal.TIFFImageWriterTest.java

public void testJPEGWritingWithoutParams() throws Exception {
    //This used to generate a NPE when no ImageWriterParams were not set
    OutputStream out = new NullOutputStream();
    org.apache.xmlgraphics.image.writer.ImageWriter imageWriter = new TIFFImageWriter();
    BufferedImage image = new BufferedImage(200, 200, BufferedImage.TYPE_BYTE_GRAY);
    imageWriter.writeImage(image, out);/*from  w  ww.j a  v a  2s  . c  om*/
}

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From source file:com.foudroyantfactotum.mod.fousarchive.midi.generation.MidiImageGeneration.java

public ImmutablePair<String, BufferedImage> buildImage() throws InterruptedException, ExecutionException {
    final Future<String> name = pool.submit(new LineProcessor(imgX));
    final BufferedImage mdbf = new BufferedImage(imgX, imgY, BufferedImage.TYPE_BYTE_GRAY);
    final Graphics g = mdbf.getGraphics();

    g.setColor(Color.BLACK);//w ww. jav  a 2s.co m
    g.fillRect(0, 0, imgX, imgY);
    g.setColor(Color.WHITE);

    for (Line l = lines.take(); l != TERMINATE; l = lines.take()) {
        g.drawLine(l.note, (int) Math.round(l.tickStart * imgY), l.note, (int) Math.round(l.tickEnd * imgY));
    }

    pool.shutdown();

    g.dispose();

    return ImmutablePair.of(name.get(), mdbf);
}

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From source file:org.apache.xmlgraphics.image.writer.internal.TIFFImageWriterTest.java

public void testJPEGWritingWithoutJPEGParams() throws Exception {
    //This used to generate a NPE because the JPEG encoding params were not set
    OutputStream out = new NullOutputStream();
    org.apache.xmlgraphics.image.writer.ImageWriter imageWriter = new TIFFImageWriter();
    MultiImageWriter writer = null;/*from  w  w w.j a v  a2s  .  c  o  m*/
    try {
        writer = imageWriter.createMultiImageWriter(out);
        // retrieve writer
        if (imageWriter != null) {
            ImageWriterParams iwp = new ImageWriterParams();
            iwp.setCompressionMethod("JPEG");

            for (int pageNumber = 0; pageNumber <= 2; pageNumber++) {
                BufferedImage image = new BufferedImage(200, 200, BufferedImage.TYPE_BYTE_GRAY);
                writer.writeImage(image, iwp);
            }
        }
    } finally {
        writer.close();
    }
}

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From source file:c.depthchart.ViewerPanel.java

public ViewerPanel() {
    setBackground(Color.WHITE);/*w  w  w . jav  a2 s. c  o m*/

    df = new DecimalFormat("0.#"); // 1 dp
    msgFont = new Font("SansSerif", Font.BOLD, 18);

    initChart();
    configOpenNI();

    histogram = new float[MAX_DEPTH_SIZE];

    imWidth = depthMD.getFullXRes();
    imHeight = depthMD.getFullYRes();
    System.out.println("Image dimensions (" + imWidth + ", " + imHeight + ")");

    // create empty image object of correct size and type
    imgbytes = new byte[imWidth * imHeight];
    image = new BufferedImage(imWidth, imHeight, BufferedImage.TYPE_BYTE_GRAY);

    new Thread(this).start(); // start updating the panel's image
}

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