Example usage for java.awt.image BufferedImage getColorModel

Introduction

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

Prototype

public ColorModel getColorModel() 

Source Link

Document

Returns the ColorModel .

Usage

From source file:pl.dp.bz.poid.fouriertest.FourierProc.java

public static BufferedImage copyImage(BufferedImage bi) {
    ColorModel cm = bi.getColorModel();
    boolean isAlphaPremultiplied = cm.isAlphaPremultiplied();
    WritableRaster raster = bi.copyData(null);
    return new BufferedImage(cm, raster, isAlphaPremultiplied, null);
}

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From source file:com.actelion.research.orbit.imageAnalysis.utils.ImageUtils.java

/**
 * Calculates and returns band histograms of a BufferedImage
 *
 * @param image//from  w w  w . j a v a 2  s . c  o  m
 * @return
 */
public static int[][] getChannelHistograms(BufferedImage image) {
    WritableRaster raster = image.getRaster();
    int[][] histograms = new int[raster
            .getNumBands()][(int) (Math.pow(2, image.getColorModel().getPixelSize()) - 1)];

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

    for (int row = 0; row < height; row++) {
        for (int col = 0; col < width; col++) {
            for (int band = 0; band < raster.getNumBands(); band++) {
                histograms[band][raster.getSample(col, row, band)]++;
            }
        }
    }

    return histograms;
}

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From source file:com.github.pitzcarraldo.dissimilar.Dissimilar.java

/**
 * Write an image showing the heatmap of ssim values, per window
 * @param pValues sequence of SSIM values
 * @param pHeight number of SSIM windows across
 * @param pWidth number of SSIM windows down
 * @param pFilename filename to save the image to (png)
 *///  w ww. ja v  a  2s .c o  m
private static BufferedImage dumpSSIMHeatMap(final double[] pValues, final int pHeight, final int pWidth,
        final String pFilename) {
    BufferedImage heatMap = new BufferedImage(pWidth, pHeight, BufferedImage.TYPE_USHORT_GRAY);

    final int maxPixelValue = (int) Math.pow(2, heatMap.getColorModel().getPixelSize()) - 1;

    int pixel = 0;
    for (int height = 0; height < pHeight; height++) {
        for (int width = 0; width < pWidth; width++) {
            pixel = ((int) (maxPixelValue * pValues[(height * pWidth) + width]));
            if (pixel < 0) {
                pixel = 0;
            }
            heatMap.setRGB(width, height, pixel);
        }
    }

    //only write to file if filename is non-null
    if (pFilename != null) {
        try {
            ImageIO.write(heatMap, "png", new File(pFilename));
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }

    return heatMap;
}

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From source file:org.esa.snap.rcp.statistics.DensityPlotPanel.java

private static byte[] getValidData(BufferedImage image) {
    if (image != null && image.getColorModel() instanceof IndexColorModel
            && image.getData().getDataBuffer() instanceof DataBufferByte) {
        return ((DataBufferByte) image.getData().getDataBuffer()).getData();
    }//  w  ww . jav  a2 s .  c o m
    return null;
}

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From source file:org.sejda.sambox.pdmodel.graphics.image.JPEGFactory.java

private static PDImageXObject createJPEG(BufferedImage image, float quality, int dpi) throws IOException {
    // extract alpha channel (if any)
    BufferedImage awtColorImage = getColorImage(image);
    BufferedImage awtAlphaImage = getAlphaImage(image);

    // create XObject
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    encodeImageToJPEGStream(awtColorImage, quality, dpi, baos);
    ByteArrayInputStream byteStream = new ByteArrayInputStream(baos.toByteArray());

    PDImageXObject pdImage = new PDImageXObject(byteStream, COSName.DCT_DECODE, awtColorImage.getWidth(),
            awtColorImage.getHeight(), awtColorImage.getColorModel().getComponentSize(0),
            getColorSpaceFromAWT(awtColorImage));

    // alpha -> soft mask
    if (awtAlphaImage != null) {
        PDImage xAlpha = JPEGFactory.createFromImage(awtAlphaImage, quality);
        pdImage.getCOSObject().setItem(COSName.SMASK, xAlpha);
    }/*  w w w . j a va 2  s .c  o  m*/

    return pdImage;
}

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From source file:org.deegree.framework.util.ImageUtils.java

/**
 *
 *
 * @param out//from   www. ja va2s. com
 * @param img
 *
 * @throws IOException
 */
private static void encodePng(OutputStream out, BufferedImage img) throws IOException {
    PNGEncodeParam encodeParam = PNGEncodeParam.getDefaultEncodeParam(img);

    if (encodeParam instanceof PNGEncodeParam.Palette) {
        PNGEncodeParam.Palette p = (PNGEncodeParam.Palette) encodeParam;
        byte[] b = new byte[] { -127 };
        p.setPaletteTransparency(b);
    }

    com.sun.media.jai.codec.ImageEncoder encoder = ImageCodec.createImageEncoder("PNG", out, encodeParam);
    encoder.encode(img.getData(), img.getColorModel());
}

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From source file:ImageOpByRomain.java

/**
 * <p>/*from   w ww  . ja va  2 s .com*/
 * Return a new compatible image that contains a copy of the specified image.
 * This method ensures an image is compatible with the hardware, and therefore
 * optimized for fast blitting operations.
 * </p>
 * 
 * @see #createCompatibleImage(java.awt.image.BufferedImage)
 * @see #createCompatibleImage(java.awt.image.BufferedImage, int, int)
 * @see #createCompatibleImage(int, int)
 * @see #createTranslucentCompatibleImage(int, int)
 * @see #loadCompatibleImage(java.net.URL)
 * @param image
 *            the image to copy into a new compatible image
 * @return a new compatible copy, with the same width and height and
 *         transparency and content, of <code>image</code>
 */
public static BufferedImage toCompatibleImage(BufferedImage image) {
    if (image.getColorModel().equals(CONFIGURATION.getColorModel())) {
        return image;
    }

    BufferedImage compatibleImage = CONFIGURATION.createCompatibleImage(image.getWidth(), image.getHeight(),
            image.getTransparency());
    Graphics g = compatibleImage.getGraphics();
    g.drawImage(image, 0, 0, null);
    g.dispose();

    return compatibleImage;
}

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From source file:ImageOpByRomain.java

/**
 * <p>/*from   w  w  w  .j av a2  s  .  c  om*/
 * Returns a new <code>BufferedImage</code> using the same color model as
 * the image passed as a parameter. The returned image is only compatible with
 * the image passed as a parameter. This does not mean the returned image is
 * compatible with the hardware.
 * </p>
 * 
 * @param image
 *            the reference image from which the color model of the new image
 *            is obtained
 * @return a new <code>BufferedImage</code>, compatible with the color
 *         model of <code>image</code>
 */
public static BufferedImage createColorModelCompatibleImage(BufferedImage image) {
    ColorModel cm = image.getColorModel();
    return new BufferedImage(cm, cm.createCompatibleWritableRaster(image.getWidth(), image.getHeight()),
            cm.isAlphaPremultiplied(), null);
}

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From source file:com.googlecode.fightinglayoutbugs.helpers.ImageHelper.java

public static int[][] imageToPixels(BufferedImage image) {
    if (image == null) {
        return null;
    }//w  ww .ja va 2  s.c o  m
    int w = image.getWidth();
    int h = image.getHeight();
    int[][] pixels = new int[w][h];
    Raster raster = image.getRaster();
    if (raster.getTransferType() == DataBuffer.TYPE_BYTE) {
        byte[] bytes = (byte[]) raster.getDataElements(0, 0, w, h, null);
        int bytesPerPixel = (bytes.length / (w * h));
        ColorModel colorModel = image.getColorModel();
        byte[] buf = new byte[bytesPerPixel];
        for (int x = 0; x < w; ++x) {
            for (int y = 0; y < h; ++y) {
                System.arraycopy(bytes, (x + y * w) * bytesPerPixel, buf, 0, bytesPerPixel);
                pixels[x][y] = colorModel.getRGB(buf) & 0xFFFFFF;
            }
        }
        return pixels;
    } else {
        throw new RuntimeException("transfer type " + raster.getTransferType() + " not implemented yet");
    }
}

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From source file:com.boundlessgeo.geoserver.api.controllers.ThumbnailController.java

/**
 * Utility method for scaling thumbnails. Scales byte[] image by a scale factor.
 * Optionally crops images to square./* w w  w .  j  a  v a  2s. c om*/
 * @param src RenderedImage containing the input image
 * @param scale Scale amount
 * @param square Boolean flag to crop to a square image
 * @return RenderedImage containing the transformed image
 * @throws IOException
 */
public static BufferedImage scaleImage(BufferedImage image, double scale, boolean square) throws IOException {
    int sx = 0, sy = 0;
    int swidth = image.getWidth();
    int sheight = image.getHeight();

    if (square) {
        if (image.getHeight() > image.getWidth()) {
            sy = (int) ((image.getHeight() - image.getWidth()) / 2.0);
            sheight = swidth;
        } else if (image.getHeight() < image.getWidth()) {
            sx = (int) ((image.getWidth() - image.getHeight()) / 2.0);
            swidth = sheight;
        }
    }
    int width = (int) (swidth * scale);
    int height = (int) (sheight * scale);

    BufferedImage scaled = new BufferedImage(image.getColorModel(),
            image.getRaster().createCompatibleWritableRaster(width, height), image.isAlphaPremultiplied(),
            null);

    Graphics g = scaled.getGraphics();
    g.drawImage(image, 0, 0, width, height, sx, sy, sx + swidth, sy + sheight, null);
    g.dispose();

    return scaled;
}

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