Example usage for java.awt.image BufferedImage getRaster

Introduction

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

Prototype

public WritableRaster getRaster() 

Source Link

Document

Returns the WritableRaster .

Usage

From source file:org.apache.xmlgraphics.image.loader.impl.imageio.ImageLoaderImageIO.java

private BufferedImage getFallbackBufferedImage(ImageReader reader, int pageIndex, ImageReadParam param)
        throws IOException {
    //Work-around found at: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4799903
    //There are some additional ideas there if someone wants to go further.

    // Try reading a Raster (no color conversion).
    Raster raster = reader.readRaster(pageIndex, param);

    // Arbitrarily select a BufferedImage type.
    int imageType;
    switch (raster.getNumBands()) {
    case 1://from ww w  . ja va 2  s  . c o m
        imageType = BufferedImage.TYPE_BYTE_GRAY;
        break;
    case 3:
        imageType = BufferedImage.TYPE_3BYTE_BGR;
        break;
    case 4:
        imageType = BufferedImage.TYPE_4BYTE_ABGR;
        break;
    default:
        throw new UnsupportedOperationException();
    }

    // Create a BufferedImage.
    BufferedImage bi = new BufferedImage(raster.getWidth(), raster.getHeight(), imageType);

    // Set the image data.
    bi.getRaster().setRect(raster);
    return bi;
}

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From source file:pl.edu.icm.visnow.lib.utils.ImageUtilities.java

public static BufferedImage copyImage(BufferedImage in) {
    BufferedImage out = new BufferedImage(in.getWidth(), in.getHeight(), in.getType());
    for (int i = 0; i < in.getRaster().getNumBands(); i++) {
        out.getRaster().setSamples(0, 0, out.getWidth(), out.getHeight(), i,
                in.getRaster().getSamples(0, 0, in.getWidth(), in.getHeight(), i, (int[]) null));
    }//from   w  w w  .ja  v  a  2s . c o  m
    return out;
}

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From source file:net.d53dev.dslfy.web.service.GifService.java

public BufferedImage convertRGBAToGIF(BufferedImage src, int transColor) {
    BufferedImage dst = new BufferedImage(src.getWidth(), src.getHeight(), BufferedImage.TYPE_BYTE_INDEXED);
    Graphics g = dst.getGraphics();
    g.setColor(new Color(transColor));
    g.fillRect(0, 0, dst.getWidth(), dst.getHeight());
    {/* ww  w .  ja  v a  2  s .  co  m*/
        IndexColorModel indexedModel = (IndexColorModel) dst.getColorModel();
        WritableRaster raster = dst.getRaster();
        int sample = raster.getSample(0, 0, 0);
        int size = indexedModel.getMapSize();
        byte[] rr = new byte[size];
        byte[] gg = new byte[size];
        byte[] bb = new byte[size];
        indexedModel.getReds(rr);
        indexedModel.getGreens(gg);
        indexedModel.getBlues(bb);
        IndexColorModel newModel = new IndexColorModel(8, size, rr, gg, bb, sample);
        dst = new BufferedImage(newModel, raster, dst.isAlphaPremultiplied(), null);
    }
    dst.createGraphics().drawImage(src, 0, 0, null);
    return dst;
}

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From source file:ImageOpByRomain.java

/**
 * <p>//  ww  w .ja v  a 2 s . c  o m
 * Returns an array of pixels, stored as integers, from a
 * <code>BufferedImage</code>. The pixels are grabbed from a rectangular
 * area defined by a location and two dimensions. Calling this method on an
 * image of type different from <code>BufferedImage.TYPE_INT_ARGB</code> and
 * <code>BufferedImage.TYPE_INT_RGB</code> will unmanage the image.
 * </p>
 * 
 * @param img
 *            the source image
 * @param x
 *            the x location at which to start grabbing pixels
 * @param y
 *            the y location at which to start grabbing pixels
 * @param w
 *            the width of the rectangle of pixels to grab
 * @param h
 *            the height of the rectangle of pixels to grab
 * @param pixels
 *            a pre-allocated array of pixels of size w*h; can be null
 * @return <code>pixels</code> if non-null, a new array of integers
 *         otherwise
 * @throws IllegalArgumentException
 *             is <code>pixels</code> is non-null and of length &lt; w*h
 */
public static int[] getPixels(BufferedImage img, int x, int y, int w, int h, int[] pixels) {
    if (w == 0 || h == 0) {
        return new int[0];
    }

    if (pixels == null) {
        pixels = new int[w * h];
    } else if (pixels.length < w * h) {
        throw new IllegalArgumentException("pixels array must have a length" + " >= w*h");
    }

    int imageType = img.getType();
    if (imageType == BufferedImage.TYPE_INT_ARGB || imageType == BufferedImage.TYPE_INT_RGB) {
        Raster raster = img.getRaster();
        return (int[]) raster.getDataElements(x, y, w, h, pixels);
    }

    // Unmanages the image
    return img.getRGB(x, y, w, h, pixels, 0, w);
}

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From source file:org.psystems.dicomweb.Dcm2Dcm.java

/**
 * Recodes the images from the source transfer syntax, as read from the src
 * file, to the specified destination syntax.
 *//*  w  w w. j  ava 2s . com*/
public void recodeImages(File src, File dest) throws IOException {

    ImageReader reader = new DicomImageReaderSpi().createReaderInstance();
    ImageWriter writer = new DicomImageWriterSpi().createWriterInstance();
    FileImageInputStream input = new FileImageInputStream(src);
    reader.setInput(input);
    if (dest.exists())
        dest.delete();
    FileImageOutputStream output = new FileImageOutputStream(dest);
    writer.setOutput(output);
    DicomStreamMetaData streamMeta = (DicomStreamMetaData) reader.getStreamMetadata();
    DicomObject ds = streamMeta.getDicomObject();
    DicomStreamMetaData writeMeta = (DicomStreamMetaData) writer.getDefaultStreamMetadata(null);
    DicomObject newDs = new BasicDicomObject();
    ds.copyTo(newDs);
    writeMeta.setDicomObject(newDs);
    int frames = ds.getInt(Tag.NumberOfFrames, 1);
    LookupTable lut = prepareBitStrip(writeMeta, reader);
    newDs.putString(Tag.TransferSyntaxUID, VR.UI, destinationSyntax.uid());
    if (overwriteObject != null) {
        overwriteObject.copyTo(newDs);
    }
    writer.prepareWriteSequence(writeMeta);
    for (int i = 0; i < frames; i++) {
        WritableRaster r = (WritableRaster) reader.readRaster(i, null);
        ColorModel cm = ColorModelFactory.createColorModel(ds);
        BufferedImage bi = new BufferedImage(cm, r, false, null);
        if (lut != null) {
            lut.lookup(bi.getRaster(), bi.getRaster());
        }
        IIOImage iioimage = new IIOImage(bi, null, null);
        writer.writeToSequence(iioimage, null);
    }
    writer.endWriteSequence();
    output.close();
    input.close();
}

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From source file:org.psystems.dicomweb.Dcm2DcmCopy.java

/**
 * Recodes the images from the source transfer syntax, as read from the src
 * file, to the specified destination syntax.
 *//*from   ww  w  . j  av a2s.c  om*/
public void recodeImages(File src, File dest) throws IOException {
    ImageReader reader = new DicomImageReaderSpi().createReaderInstance();
    ImageWriter writer = new DicomImageWriterSpi().createWriterInstance();
    FileImageInputStream input = new FileImageInputStream(src);
    reader.setInput(input);
    if (dest.exists())
        dest.delete();
    FileImageOutputStream output = new FileImageOutputStream(dest);
    writer.setOutput(output);
    DicomStreamMetaData streamMeta = (DicomStreamMetaData) reader.getStreamMetadata();
    DicomObject ds = streamMeta.getDicomObject();
    DicomStreamMetaData writeMeta = (DicomStreamMetaData) writer.getDefaultStreamMetadata(null);
    DicomObject newDs = new BasicDicomObject();
    ds.copyTo(newDs);
    writeMeta.setDicomObject(newDs);
    int frames = ds.getInt(Tag.NumberOfFrames, 1);
    LookupTable lut = prepareBitStrip(writeMeta, reader);
    newDs.putString(Tag.TransferSyntaxUID, VR.UI, destinationSyntax.uid());
    if (overwriteObject != null) {
        overwriteObject.copyTo(newDs);
    }
    writer.prepareWriteSequence(writeMeta);
    for (int i = 0; i < frames; i++) {
        WritableRaster r = (WritableRaster) reader.readRaster(i, null);
        ColorModel cm = ColorModelFactory.createColorModel(ds);
        BufferedImage bi = new BufferedImage(cm, r, false, null);
        if (lut != null) {
            lut.lookup(bi.getRaster(), bi.getRaster());
        }
        IIOImage iioimage = new IIOImage(bi, null, null);
        writer.writeToSequence(iioimage, null);
    }
    writer.endWriteSequence();
    output.close();
    input.close();
}

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From source file:pl.edu.icm.visnow.lib.utils.ImageUtilities.java

public static BufferedImage transparentColor(BufferedImage src, Color trColor) {
    int w = src.getWidth();
    int h = src.getHeight();
    BufferedImage dst = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
    if (src.getRaster().getNumBands() < 3) {
        for (int i = 0; i < 3; i++) {
            dst.getRaster().setSamples(0, 0, w, h, i, src.getRaster().getSamples(0, 0, w, h, 0, (int[]) null));
        }//w w w.j  ava 2 s.c  o m
    } else if (src.getRaster().getNumBands() >= 3) {
        for (int i = 0; i < 3; i++) {
            dst.getRaster().setSamples(0, 0, w, h, i, src.getRaster().getSamples(0, 0, w, h, i, (int[]) null));
        }
    }

    for (int x = 0; x < w; x++) {
        for (int y = 0; y < h; y++) {
            if (dst.getRaster().getSample(x, y, 0) == trColor.getRed()
                    && dst.getRaster().getSample(x, y, 1) == trColor.getGreen()
                    && dst.getRaster().getSample(x, y, 2) == trColor.getBlue()) {
                dst.getRaster().setSample(x, y, 3, 0);
            } else {
                dst.getRaster().setSample(x, y, 3, 255);
            }
        }
    }
    return dst;
}

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From source file:haven.Utils.java

public static BufferedImage outline(BufferedImage img, Color col) {
    Coord sz = imgsz(img).add(2, 2);//from  ww  w.j a  v  a  2 s  .co m
    BufferedImage ol = TexI.mkbuf(sz);
    Object fcol = ol.getColorModel().getDataElements(col.getRGB(), null);
    Raster src = img.getRaster();
    WritableRaster dst = ol.getRaster();
    for (int y = 0; y < sz.y; y++) {
        for (int x = 0; x < sz.x; x++) {
            boolean t;
            if ((y == 0) || (x == 0) || (y == sz.y - 1) || (x == sz.x - 1)) {
                t = true;
            } else {
                t = src.getSample(x - 1, y - 1, 3) < 250;
            }
            if (!t)
                continue;
            if (((x > 1) && (y > 0) && (y < sz.y - 1) && (src.getSample(x - 2, y - 1, 3) >= 250))
                    || ((x > 0) && (y > 1) && (x < sz.x - 1) && (src.getSample(x - 1, y - 2, 3) >= 250))
                    || ((x < sz.x - 2) && (y > 0) && (y < sz.y - 1) && (src.getSample(x, y - 1, 3) >= 250))
                    || ((x > 0) && (y < sz.y - 2) && (x < sz.x - 1) && (src.getSample(x - 1, y, 3) >= 250)))
                dst.setDataElements(x, y, fcol);
        }
    }
    return (ol);
}

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From source file:DataBufferGrabber.java

protected void paintComponent(Graphics g) {
    // create an image
    BufferedImage bImg = new BufferedImage(SWATCH_SIZE, SWATCH_SIZE, BufferedImage.TYPE_INT_RGB);
    Graphics gImage = bImg.getGraphics();
    gImage.setColor(Color.WHITE);
    gImage.fillRect(0, 0, SWATCH_SIZE, SWATCH_SIZE);

    // Time how long it takes to copy the managed version
    long managedTime = copyImage(g, bImg, 0, 0);
    System.out.println("Managed: " + managedTime + " ms");

    // Now grab the pixel array, change the colors, re-run the test
    Raster raster = bImg.getRaster();
    DataBufferInt dataBuffer = (DataBufferInt) raster.getDataBuffer();
    int pixels[] = dataBuffer.getData();
    for (int i = 0; i < pixels.length; ++i) {
        // Make all pixels black
        pixels[i] = 0;/*  w  w w.java 2s  .  c  o m*/
    }

    // Time this un-managed copy
    long unmanagedTime = copyImage(g, bImg, SWATCH_SIZE, 0);
    System.out.println("Unmanaged: " + unmanagedTime + " ms");
}

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From source file:Main.java

/**
 * Snapshots the specified {@link BufferedImage} and stores a copy of
 * its pixels into a JavaFX {@link Image} object, creating a new
 * object if needed./*from   w  w w  . j  a  v a  2  s  .c  o m*/
 * The returned {@code Image} will be a static snapshot of the state
 * of the pixels in the {@code BufferedImage} at the time the method
 * completes.  Further changes to the {@code BufferedImage} will not
 * be reflected in the {@code Image}.
 * <p>
 * The optional JavaFX {@link WritableImage} parameter may be reused
 * to store the copy of the pixels.
 * A new {@code Image} will be created if the supplied object is null,
 * is too small or of a type which the image pixels cannot be easily
 * converted into.
 * 
 * @param bimg the {@code BufferedImage} object to be converted
 * @param wimg an optional {@code WritableImage} object that can be
 *        used to store the returned pixel data
 * @return an {@code Image} object representing a snapshot of the
 *         current pixels in the {@code BufferedImage}.
 * @since JavaFX 2.2
 */
public static WritableImage toFXImage(BufferedImage bimg, WritableImage wimg) {
    int bw = bimg.getWidth();
    int bh = bimg.getHeight();
    switch (bimg.getType()) {
    case BufferedImage.TYPE_INT_ARGB:
    case BufferedImage.TYPE_INT_ARGB_PRE:
        break;
    default:
        BufferedImage converted = new BufferedImage(bw, bh, BufferedImage.TYPE_INT_ARGB_PRE);
        Graphics2D g2d = converted.createGraphics();
        g2d.drawImage(bimg, 0, 0, null);
        g2d.dispose();
        bimg = converted;
        break;
    }
    // assert(bimg.getType == TYPE_INT_ARGB[_PRE]);
    if (wimg != null) {
        int iw = (int) wimg.getWidth();
        int ih = (int) wimg.getHeight();
        if (iw < bw || ih < bh) {
            wimg = null;
        } else if (bw < iw || bh < ih) {
            int empty[] = new int[iw];
            PixelWriter pw = wimg.getPixelWriter();
            PixelFormat<IntBuffer> pf = PixelFormat.getIntArgbPreInstance();
            if (bw < iw) {
                pw.setPixels(bw, 0, iw - bw, bh, pf, empty, 0, 0);
            }
            if (bh < ih) {
                pw.setPixels(0, bh, iw, ih - bh, pf, empty, 0, 0);
            }
        }
    }
    if (wimg == null) {
        wimg = new WritableImage(bw, bh);
    }
    PixelWriter pw = wimg.getPixelWriter();
    IntegerComponentRaster icr = (IntegerComponentRaster) bimg.getRaster();
    int data[] = icr.getDataStorage();
    int offset = icr.getDataOffset(0);
    int scan = icr.getScanlineStride();
    PixelFormat<IntBuffer> pf = (bimg.isAlphaPremultiplied() ? PixelFormat.getIntArgbPreInstance()
            : PixelFormat.getIntArgbInstance());
    pw.setPixels(0, 0, bw, bh, pf, data, offset, scan);
    return wimg;
}

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