Example usage for java.awt.image WritableRaster getPixel

Introduction

In this page you can find the example usage for java.awt.image WritableRaster getPixel.

Prototype

public int[] getPixel(int x, int y, int[] iArray) 

Source Link

Document

Returns the samples in an array of int for the specified pixel.

Usage

From source file:tilt.image.Blob.java

/**
 * Test with small image/* w w  w  .ja  v  a 2  s.c  om*/
 * @param args ignored
 */
public static void main(String[] args) {
    try {
        Options opts = new Options(new JSONObject());
        String url = "http://ecdosis.net/test.png";
        Double[][] cc = { { 0.0, 0.0 }, { 100.0, 0.0 }, { 100.0, 100.0 }, { 0.0, 100.0 } };
        Picture p = new Picture(opts, url, new TextIndex("", ""), cc, InetAddress.getByName("127.0.0.1"));
        p.convertToTwoTone();
        BufferedImage bandw = ImageIO.read(p.twotone);
        WritableRaster wr = bandw.getRaster();
        Blob largest = null;
        int max = 0;
        int[] iArray = new int[1];
        WritableRaster darkRegions = bandw.copyData(null);
        Blob.setToWhite(darkRegions);
        for (int y = 0; y < wr.getHeight(); y++) {
            for (int x = 0; x < wr.getWidth(); x++) {
                Blob b = new Blob(darkRegions, opts, null);
                wr.getPixel(x, y, iArray);
                if (iArray[0] == 0) {
                    b.expandArea(wr, new Point(x, y));
                    if (b.size() > max) {
                        System.out.println("Found new blob at " + x + "," + y + " size=" + b.size());
                        largest = b;
                        max = b.size();
                    }
                }
            }
        }
        if (largest != null) {
            WritableRaster dirt = bandw.copyData(null);
            Blob.setToWhite(dirt);
            largest.save(dirt, wr, largest.firstBlackPixel);
            System.out.println(largest.toString());
        }
    } catch (Exception e) {
        e.printStackTrace(System.out);
    }
}

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From source file:Main.java

private static BufferedImage colorImage(BufferedImage image) {
    int width = image.getWidth();
    int height = image.getHeight();
    WritableRaster raster = image.getRaster();

    for (int xx = 0; xx < width; xx++) {
        for (int yy = 0; yy < height; yy++) {
            int[] pixels = raster.getPixel(xx, yy, (int[]) null);
            pixels[0] = 0;/*from   w  w w. j  a  va 2 s  . com*/
            pixels[1] = 255;
            pixels[2] = 255;
            raster.setPixel(xx, yy, pixels);
        }
    }
    return image;
}

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From source file:org.polymap.styler.helper.ImageHelper.java

public static ImageData convertToSWT(BufferedImage bufferedImage) {
    if (bufferedImage.getColorModel() instanceof DirectColorModel) {
        DirectColorModel colorModel = (DirectColorModel) bufferedImage.getColorModel();
        PaletteData palette = new PaletteData(colorModel.getRedMask(), colorModel.getGreenMask(),
                colorModel.getBlueMask());
        ImageData data = new ImageData(bufferedImage.getWidth(), bufferedImage.getHeight(),
                colorModel.getPixelSize(), palette);
        WritableRaster raster = bufferedImage.getRaster();
        int[] pixelArray = new int[raster.getNumBands()];
        for (int y = 0; y < data.height; y++) {
            for (int x = 0; x < data.width; x++) {
                raster.getPixel(x, y, pixelArray);
                int pixel = palette.getPixel(new RGB(pixelArray[0], pixelArray[1], pixelArray[2]));
                data.setPixel(x, y, pixel);
            }/*from  w w  w  .java  2s.co m*/
        }
        return data;
    } else if (bufferedImage.getColorModel() instanceof IndexColorModel) {
        IndexColorModel colorModel = (IndexColorModel) bufferedImage.getColorModel();
        int size = colorModel.getMapSize();
        byte[] reds = new byte[size];
        byte[] greens = new byte[size];
        byte[] blues = new byte[size];
        colorModel.getReds(reds);
        colorModel.getGreens(greens);
        colorModel.getBlues(blues);
        RGB[] rgbs = new RGB[size];
        for (int i = 0; i < rgbs.length; i++) {
            rgbs[i] = new RGB(reds[i] & 0xFF, greens[i] & 0xFF, blues[i] & 0xFF);
        }
        PaletteData palette = new PaletteData(rgbs);
        ImageData data = new ImageData(bufferedImage.getWidth(), bufferedImage.getHeight(),
                colorModel.getPixelSize(), palette);
        data.transparentPixel = colorModel.getTransparentPixel();
        WritableRaster raster = bufferedImage.getRaster();
        int[] pixelArray = new int[1];
        for (int y = 0; y < data.height; y++) {
            for (int x = 0; x < data.width; x++) {
                raster.getPixel(x, y, pixelArray);
                data.setPixel(x, y, pixelArray[0]);
            }
        }
        return data;
    }
    return null;
}

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From source file:Snippet156.java

static ImageData convertToSWT(BufferedImage bufferedImage) {
    if (bufferedImage.getColorModel() instanceof DirectColorModel) {
        DirectColorModel colorModel = (DirectColorModel) bufferedImage.getColorModel();
        PaletteData palette = new PaletteData(colorModel.getRedMask(), colorModel.getGreenMask(),
                colorModel.getBlueMask());
        ImageData data = new ImageData(bufferedImage.getWidth(), bufferedImage.getHeight(),
                colorModel.getPixelSize(), palette);
        WritableRaster raster = bufferedImage.getRaster();
        int[] pixelArray = new int[3];
        for (int y = 0; y < data.height; y++) {
            for (int x = 0; x < data.width; x++) {
                raster.getPixel(x, y, pixelArray);
                int pixel = palette.getPixel(new RGB(pixelArray[0], pixelArray[1], pixelArray[2]));
                data.setPixel(x, y, pixel);
            }//www.j a v  a 2s.c o  m
        }
        return data;
    } else if (bufferedImage.getColorModel() instanceof IndexColorModel) {
        IndexColorModel colorModel = (IndexColorModel) bufferedImage.getColorModel();
        int size = colorModel.getMapSize();
        byte[] reds = new byte[size];
        byte[] greens = new byte[size];
        byte[] blues = new byte[size];
        colorModel.getReds(reds);
        colorModel.getGreens(greens);
        colorModel.getBlues(blues);
        RGB[] rgbs = new RGB[size];
        for (int i = 0; i < rgbs.length; i++) {
            rgbs[i] = new RGB(reds[i] & 0xFF, greens[i] & 0xFF, blues[i] & 0xFF);
        }
        PaletteData palette = new PaletteData(rgbs);
        ImageData data = new ImageData(bufferedImage.getWidth(), bufferedImage.getHeight(),
                colorModel.getPixelSize(), palette);
        data.transparentPixel = colorModel.getTransparentPixel();
        WritableRaster raster = bufferedImage.getRaster();
        int[] pixelArray = new int[1];
        for (int y = 0; y < data.height; y++) {
            for (int x = 0; x < data.width; x++) {
                raster.getPixel(x, y, pixelArray);
                data.setPixel(x, y, pixelArray[0]);
            }
        }
        return data;
    }
    return null;
}

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From source file:org.eclipse.swt.snippets.Snippet156.java

static ImageData convertToSWT(BufferedImage bufferedImage) {
    if (bufferedImage.getColorModel() instanceof DirectColorModel) {
        DirectColorModel colorModel = (DirectColorModel) bufferedImage.getColorModel();
        PaletteData palette = new PaletteData(colorModel.getRedMask(), colorModel.getGreenMask(),
                colorModel.getBlueMask());
        ImageData data = new ImageData(bufferedImage.getWidth(), bufferedImage.getHeight(),
                colorModel.getPixelSize(), palette);
        for (int y = 0; y < data.height; y++) {
            for (int x = 0; x < data.width; x++) {
                int rgb = bufferedImage.getRGB(x, y);
                int pixel = palette.getPixel(new RGB((rgb >> 16) & 0xFF, (rgb >> 8) & 0xFF, rgb & 0xFF));
                data.setPixel(x, y, pixel);
                if (colorModel.hasAlpha()) {
                    data.setAlpha(x, y, (rgb >> 24) & 0xFF);
                }/*from  w w  w  .jav  a  2  s  . c  o m*/
            }
        }
        return data;
    } else if (bufferedImage.getColorModel() instanceof IndexColorModel) {
        IndexColorModel colorModel = (IndexColorModel) bufferedImage.getColorModel();
        int size = colorModel.getMapSize();
        byte[] reds = new byte[size];
        byte[] greens = new byte[size];
        byte[] blues = new byte[size];
        colorModel.getReds(reds);
        colorModel.getGreens(greens);
        colorModel.getBlues(blues);
        RGB[] rgbs = new RGB[size];
        for (int i = 0; i < rgbs.length; i++) {
            rgbs[i] = new RGB(reds[i] & 0xFF, greens[i] & 0xFF, blues[i] & 0xFF);
        }
        PaletteData palette = new PaletteData(rgbs);
        ImageData data = new ImageData(bufferedImage.getWidth(), bufferedImage.getHeight(),
                colorModel.getPixelSize(), palette);
        data.transparentPixel = colorModel.getTransparentPixel();
        WritableRaster raster = bufferedImage.getRaster();
        int[] pixelArray = new int[1];
        for (int y = 0; y < data.height; y++) {
            for (int x = 0; x < data.width; x++) {
                raster.getPixel(x, y, pixelArray);
                data.setPixel(x, y, pixelArray[0]);
            }
        }
        return data;
    }
    return null;
}

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From source file:SWTUtils.java

/**
 * Converts a buffered image to SWT <code>ImageData</code>.
 *
 * @param bufferedImage  the buffered image (<code>null</code> not
 *         permitted)./*w ww . j  a  v a2s . c o m*/
 *
 * @return The image data.
 */
public static ImageData convertToSWT(BufferedImage bufferedImage) {
    if (bufferedImage.getColorModel() instanceof DirectColorModel) {
        DirectColorModel colorModel = (DirectColorModel) bufferedImage.getColorModel();
        PaletteData palette = new PaletteData(colorModel.getRedMask(), colorModel.getGreenMask(),
                colorModel.getBlueMask());
        ImageData data = new ImageData(bufferedImage.getWidth(), bufferedImage.getHeight(),
                colorModel.getPixelSize(), palette);
        WritableRaster raster = bufferedImage.getRaster();
        int[] pixelArray = new int[3];
        for (int y = 0; y < data.height; y++) {
            for (int x = 0; x < data.width; x++) {
                raster.getPixel(x, y, pixelArray);
                int pixel = palette.getPixel(new RGB(pixelArray[0], pixelArray[1], pixelArray[2]));
                data.setPixel(x, y, pixel);
            }
        }
        return data;
    } else if (bufferedImage.getColorModel() instanceof IndexColorModel) {
        IndexColorModel colorModel = (IndexColorModel) bufferedImage.getColorModel();
        int size = colorModel.getMapSize();
        byte[] reds = new byte[size];
        byte[] greens = new byte[size];
        byte[] blues = new byte[size];
        colorModel.getReds(reds);
        colorModel.getGreens(greens);
        colorModel.getBlues(blues);
        RGB[] rgbs = new RGB[size];
        for (int i = 0; i < rgbs.length; i++) {
            rgbs[i] = new RGB(reds[i] & 0xFF, greens[i] & 0xFF, blues[i] & 0xFF);
        }
        PaletteData palette = new PaletteData(rgbs);
        ImageData data = new ImageData(bufferedImage.getWidth(), bufferedImage.getHeight(),
                colorModel.getPixelSize(), palette);
        data.transparentPixel = colorModel.getTransparentPixel();
        WritableRaster raster = bufferedImage.getRaster();
        int[] pixelArray = new int[1];
        for (int y = 0; y < data.height; y++) {
            for (int x = 0; x < data.width; x++) {
                raster.getPixel(x, y, pixelArray);
                data.setPixel(x, y, pixelArray[0]);
            }
        }
        return data;
    }
    return null;
}

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From source file:org.openossad.util.ImageUtil.java

public static ImageData convertToSWT(BufferedImage bufferedImage) {
    if (bufferedImage.getColorModel() instanceof DirectColorModel) {
        DirectColorModel colorModel = (DirectColorModel) bufferedImage.getColorModel();
        PaletteData palette = new PaletteData(colorModel.getRedMask(), colorModel.getGreenMask(),
                colorModel.getBlueMask());
        ImageData data = new ImageData(bufferedImage.getWidth(), bufferedImage.getHeight(),
                colorModel.getPixelSize(), palette);
        WritableRaster raster = bufferedImage.getRaster();
        int[] pixelArray = new int[3];
        for (int y = 0; y < data.height; y++) {
            for (int x = 0; x < data.width; x++) {
                raster.getPixel(x, y, pixelArray);
                int pixel = palette.getPixel(new RGB(pixelArray[0], pixelArray[1], pixelArray[2]));
                data.setPixel(x, y, pixel);
            }/*  w  w  w .ja  v  a  2  s. co  m*/
        }
        return data;
    } else if (bufferedImage.getColorModel() instanceof IndexColorModel) {
        IndexColorModel colorModel = (IndexColorModel) bufferedImage.getColorModel();
        int size = colorModel.getMapSize();
        byte[] reds = new byte[size];
        byte[] greens = new byte[size];
        byte[] blues = new byte[size];
        colorModel.getReds(reds);
        colorModel.getGreens(greens);
        colorModel.getBlues(blues);
        RGB[] rgbs = new RGB[size];
        for (int i = 0; i < rgbs.length; i++) {
            rgbs[i] = new RGB(reds[i] & 0xFF, greens[i] & 0xFF, blues[i] & 0xFF);
        }
        PaletteData palette = new PaletteData(rgbs);
        ImageData data = new ImageData(bufferedImage.getWidth(), bufferedImage.getHeight(),
                colorModel.getPixelSize(), palette);
        data.transparentPixel = colorModel.getTransparentPixel();
        WritableRaster raster = bufferedImage.getRaster();
        int[] pixelArray = new int[1];
        for (int y = 0; y < data.height; y++) {
            for (int x = 0; x < data.width; x++) {
                raster.getPixel(x, y, pixelArray);
                data.setPixel(x, y, pixelArray[0]);
            }
        }
        return data;
    }
    return null;
}

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From source file:de.fhg.igd.swingrcp.SwingRCPUtilities.java

/**
 * Convert a {@link BufferedImage} to a SWT Image.
 * /* w w  w.j a va2s .com*/
 * {@link "http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet156.java?view=co"}
 * 
 * @param bufferedImage the AWT {@link BufferedImage}
 * @return the SWT {@link ImageData}
 */
public static ImageData convertToSWT(BufferedImage bufferedImage) {
    if (bufferedImage.getColorModel() instanceof DirectColorModel) {
        DirectColorModel colorModel = (DirectColorModel) bufferedImage.getColorModel();
        PaletteData palette = new PaletteData(colorModel.getRedMask(), colorModel.getGreenMask(),
                colorModel.getBlueMask());
        ImageData data = new ImageData(bufferedImage.getWidth(), bufferedImage.getHeight(),
                colorModel.getPixelSize(), palette);
        for (int y = 0; y < data.height; y++) {
            for (int x = 0; x < data.width; x++) {
                int rgb = bufferedImage.getRGB(x, y);
                int pixel = palette.getPixel(new RGB((rgb >> 16) & 0xFF, (rgb >> 8) & 0xFF, rgb & 0xFF));
                data.setPixel(x, y, pixel);
                // also set the alpha value (ST)
                data.setAlpha(x, y, colorModel.getAlpha(rgb));
            }
        }
        return data;
    } else if (bufferedImage.getColorModel() instanceof IndexColorModel) {
        IndexColorModel colorModel = (IndexColorModel) bufferedImage.getColorModel();
        int size = colorModel.getMapSize();
        byte[] reds = new byte[size];
        byte[] greens = new byte[size];
        byte[] blues = new byte[size];
        colorModel.getReds(reds);
        colorModel.getGreens(greens);
        colorModel.getBlues(blues);
        RGB[] rgbs = new RGB[size];
        for (int i = 0; i < rgbs.length; i++) {
            rgbs[i] = new RGB(reds[i] & 0xFF, greens[i] & 0xFF, blues[i] & 0xFF);
        }
        PaletteData palette = new PaletteData(rgbs);
        ImageData data = new ImageData(bufferedImage.getWidth(), bufferedImage.getHeight(),
                colorModel.getPixelSize(), palette);
        data.transparentPixel = colorModel.getTransparentPixel();
        WritableRaster raster = bufferedImage.getRaster();
        int[] pixelArray = new int[1];
        for (int y = 0; y < data.height; y++) {
            for (int x = 0; x < data.width; x++) {
                raster.getPixel(x, y, pixelArray);
                data.setPixel(x, y, pixelArray[0]);
            }
        }
        return data;
    }
    return null;
}

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From source file:org.apache.pdfbox.pdmodel.graphics.image.SampledImageReader.java

/**
 * Returns an ARGB image filled with the given paint and using the given image as a mask.
 * @param paint the paint to fill the visible portions of the image with
 * @return a masked image filled with the given paint
 * @throws IOException if the image cannot be read
 * @throws IllegalStateException if the image is not a stencil.
 *///from  ww w  . j  a  v a2s  . co  m
public static BufferedImage getStencilImage(PDImage pdImage, Paint paint) throws IOException {
    // get mask (this image)
    BufferedImage mask = getRGBImage(pdImage, null);

    // compose to ARGB
    BufferedImage masked = new BufferedImage(mask.getWidth(), mask.getHeight(), BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = masked.createGraphics();

    // draw the mask
    //g.drawImage(mask, 0, 0, null);

    // fill with paint using src-in
    //g.setComposite(AlphaComposite.SrcIn);
    g.setPaint(paint);
    g.fillRect(0, 0, mask.getWidth(), mask.getHeight());
    g.dispose();

    // set the alpha
    int width = masked.getWidth();
    int height = masked.getHeight();
    WritableRaster raster = masked.getRaster();
    WritableRaster alpha = mask.getRaster();

    final float[] transparent = new float[4];
    float[] alphaPixel = null;
    for (int y = 0; y < height; y++) {
        for (int x = 0; x < width; x++) {
            alphaPixel = alpha.getPixel(x, y, alphaPixel);
            if (alphaPixel[0] == 255) {
                raster.setPixel(x, y, transparent);
            }
        }
    }

    return masked;
}

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From source file:org.apache.pdfbox.pdmodel.graphics.image.SampledImageReader.java

private static BufferedImage applyColorKeyMask(BufferedImage image, BufferedImage mask) throws IOException {
    int width = image.getWidth();
    int height = image.getHeight();

    // compose to ARGB
    BufferedImage masked = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);

    WritableRaster src = image.getRaster();
    WritableRaster dest = masked.getRaster();
    WritableRaster alpha = mask.getRaster();

    float[] rgb = new float[3];
    float[] rgba = new float[4];
    float[] alphaPixel = null;
    for (int y = 0; y < height; y++) {
        for (int x = 0; x < width; x++) {
            src.getPixel(x, y, rgb);

            rgba[0] = rgb[0];/*from  www  .ja v  a  2 s.  co  m*/
            rgba[1] = rgb[1];
            rgba[2] = rgb[2];
            alphaPixel = alpha.getPixel(x, y, alphaPixel);
            rgba[3] = 255 - alphaPixel[0];

            dest.setPixel(x, y, rgba);
        }
    }

    return masked;
}

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