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:at.gv.egiz.pdfas.common.utils.ImageUtils.java

public static BufferedImage makeTransparent(BufferedImage image, int x, int y) {
    ColorModel cm = image.getColorModel();
    if (!(cm instanceof IndexColorModel))
        return image; // sorry...
    IndexColorModel icm = (IndexColorModel) cm;
    WritableRaster raster = image.getRaster();
    int pixel = raster.getSample(x, y, 0); // pixel is offset in ICM's
    // palette//ww w  .  j a  va2  s  .  co m
    int size = icm.getMapSize();
    byte[] reds = new byte[size];
    byte[] greens = new byte[size];
    byte[] blues = new byte[size];
    icm.getReds(reds);
    icm.getGreens(greens);
    icm.getBlues(blues);
    IndexColorModel icm2 = new IndexColorModel(8, size, reds, greens, blues, pixel);
    return new BufferedImage(icm2, raster, image.isAlphaPremultiplied(), null);
}

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From source file:ImageUtil.java

/**
 * create new image from source image// w w  w  . jav  a  2s. com
 * @param srcImg source image
 * @param targetWidth target image width
 * @param targetHeight target image height
 * @return new image with specify width and height
 */
public static BufferedImage createNewImage(BufferedImage srcImg, int targetWidth, int targetHeight) {
    BufferedImage targetImg = null;
    int type = srcImg.getType();
    if (type == BufferedImage.TYPE_CUSTOM) {
        ColorModel cm = srcImg.getColorModel();
        WritableRaster raster = cm.createCompatibleWritableRaster(targetWidth, targetHeight);
        boolean alphaPremultiplied = cm.isAlphaPremultiplied();
        targetImg = new BufferedImage(cm, raster, alphaPremultiplied, null);
    } else {
        targetImg = new BufferedImage(targetWidth, targetHeight, type);
    }
    return targetImg;
}

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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 w w .  jav a2  s.  co  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 2s .  c om*/
        }
        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.sejda.sambox.pdmodel.graphics.image.JPEGFactory.java

private static BufferedImage getAlphaImage(BufferedImage image) {
    if (!image.getColorModel().hasAlpha()) {
        return null;
    }//from w w  w.  j  a  v  a2s.co m
    if (image.getTransparency() == Transparency.BITMASK) {
        throw new UnsupportedOperationException(
                "BITMASK Transparency JPEG compression is not" + " useful, use LosslessImageFactory instead");
    }
    WritableRaster alphaRaster = image.getAlphaRaster();
    if (alphaRaster == null) {
        // happens sometimes (PDFBOX-2654) despite colormodel claiming to have alpha
        return null;
    }
    BufferedImage alphaImage = new BufferedImage(image.getWidth(), image.getHeight(),
            BufferedImage.TYPE_BYTE_GRAY);
    alphaImage.setData(alphaRaster);
    return alphaImage;
}

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

private static BufferedImage getColorImage(BufferedImage image) {
    if (!image.getColorModel().hasAlpha()) {
        return image;
    }//  w  w w  . j  a  v a 2  s. c o m

    if (image.getColorModel().getColorSpace().getType() != ColorSpace.TYPE_RGB) {
        throw new UnsupportedOperationException("only RGB color spaces are implemented");
    }

    // create an RGB image without alpha
    // BEWARE: the previous solution in the history
    // g.setComposite(AlphaComposite.Src) and g.drawImage()
    // didn't work properly for TYPE_4BYTE_ABGR.
    // alpha values of 0 result in a black dest pixel!!!
    BufferedImage rgbImage = new BufferedImage(image.getWidth(), image.getHeight(),
            BufferedImage.TYPE_3BYTE_BGR);
    return new ColorConvertOp(null).filter(image, rgbImage);
}

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From source file:ConvertUtil.java

/**
 * Converts the source image to 24-bit colour (RGB). No transparency.
 * //w ww  .  ja va2  s. c o  m
 * @param src
 *            the source image to convert
 * @return a copy of the source image with a 24-bit colour depth
 */
public static BufferedImage convert24(BufferedImage src) {
    BufferedImage dest = new BufferedImage(src.getWidth(), src.getHeight(), BufferedImage.TYPE_INT_RGB);
    ColorConvertOp cco = new ColorConvertOp(src.getColorModel().getColorSpace(),
            dest.getColorModel().getColorSpace(), null);
    cco.filter(src, dest);
    return dest;
}

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From source file:ConvertUtil.java

/**
 * Converts the source image to 32-bit colour with transparency (ARGB).
 * /*  w w w  .  ja  v  a 2s  . c om*/
 * @param src
 *            the source image to convert
 * @return a copy of the source image with a 32-bit colour depth.
 */
public static BufferedImage convert32(BufferedImage src) {
    BufferedImage dest = new BufferedImage(src.getWidth(), src.getHeight(), BufferedImage.TYPE_INT_ARGB);
    ColorConvertOp cco = new ColorConvertOp(src.getColorModel().getColorSpace(),
            dest.getColorModel().getColorSpace(), null);
    cco.filter(src, dest);
    return dest;
}

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

public static PDColorSpace getColorSpaceFromAWT(BufferedImage awtImage) {
    if (awtImage.getColorModel().getNumComponents() == 1) {
        // 256 color (gray) JPEG
        return PDDeviceGray.INSTANCE;
    }//from  ww w . j  a  v  a2  s  .  c  om

    ColorSpace awtColorSpace = awtImage.getColorModel().getColorSpace();
    if (awtColorSpace instanceof ICC_ColorSpace && !awtColorSpace.isCS_sRGB()) {
        throw new UnsupportedOperationException("ICC color spaces not implemented");
    }

    switch (awtColorSpace.getType()) {
    case ColorSpace.TYPE_RGB:
        return PDDeviceRGB.INSTANCE;
    case ColorSpace.TYPE_GRAY:
        return PDDeviceGray.INSTANCE;
    case ColorSpace.TYPE_CMYK:
        return PDDeviceCMYK.INSTANCE;
    default:
        throw new UnsupportedOperationException("color space not implemented: " + awtColorSpace.getType());
    }
}

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From source file:ConvertUtil.java

/**
 * Converts the source image to 8-bit colour using the default 256-colour
 * palette. No transparency./*from  w w w .j  a va 2s  . c o  m*/
 * 
 * @param src
 *            the source image to convert
 * @return a copy of the source image with an 8-bit colour depth
 */
public static BufferedImage convert8(BufferedImage src) {
    BufferedImage dest = new BufferedImage(src.getWidth(), src.getHeight(), BufferedImage.TYPE_BYTE_INDEXED);
    ColorConvertOp cco = new ColorConvertOp(src.getColorModel().getColorSpace(),
            dest.getColorModel().getColorSpace(), null);
    cco.filter(src, dest);
    return dest;
}

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