public static BufferedImage convertImageData(ImageData data) {
    BufferedImage bimg = null;
    int height = data.getHeight(), width = data.getWidth();
    Object pixels = data.getData();
    if (pixels instanceof int[] && data.getElementWidth() == 1) {
      int[] arr = (int[]) pixels;
      byte[] barray = new byte[arr.length * 3];
      int k = 0;
      for (int j = 0; j < arr.length; j++) {
        int l = arr[j];
        barray[k++] = (byte) (l & 0xFF);
        barray[k++] = (byte) ((l >>> 8) & 0xFF);
        barray[k++] = (byte) ((l >>> 16) & 0xFF);
      }
      ColorModel ccm =
          new ComponentColorModel(
              ICC_ColorSpace.getInstance(ICC_ColorSpace.CS_sRGB),
              new int[] {8, 8, 8},
              false,
              false,
              Transparency.OPAQUE,
              DataBuffer.TYPE_BYTE);
      DataBuffer bbuf = new DataBufferByte(barray, barray.length);
      SampleModel bmodel =
          new PixelInterleavedSampleModel(
              DataBuffer.TYPE_BYTE, width, height, 3, 3 * width, new int[] {2, 1, 0});

      WritableRaster raster = Raster.createWritableRaster(bmodel, bbuf, new Point(0, 0));
      bimg = new BufferedImage(ccm, raster, false, new Hashtable());
    } else if (pixels instanceof byte[]
        && data.getElementWidth() == 1) { // Assume gray scale model?
      byte[] arr = (byte[]) pixels;
      byte[] barray = new byte[arr.length * 3];
      int k = 0;
      for (int j = 0; j < arr.length; j++) {
        byte l = arr[j];
        barray[k++] = l;
        barray[k++] = l;
        barray[k++] = l;
      }
      ColorModel ccm =
          new ComponentColorModel(
              ICC_ColorSpace.getInstance(ICC_ColorSpace.CS_sRGB),
              new int[] {8, 8, 8},
              false,
              false,
              Transparency.OPAQUE,
              DataBuffer.TYPE_BYTE);
      DataBuffer bbuf = new DataBufferByte(barray, barray.length);
      SampleModel bmodel =
          new PixelInterleavedSampleModel(
              DataBuffer.TYPE_BYTE, width, height, 3, 3 * width, new int[] {2, 1, 0});

      WritableRaster raster = Raster.createWritableRaster(bmodel, bbuf, new Point(0, 0));
      bimg = new BufferedImage(ccm, raster, false, new Hashtable());
    } else {
      throw new RuntimeException("Unexpected data.");
    }
    return bimg;
  }
Example #2
0
 public static Color relativelyTransparent(Color original, float alpha) {
   ColorSpace srbg = ICC_ColorSpace.getInstance(ColorSpace.CS_sRGB);
   double originalAlpha = 1.0 * original.getAlpha() / 255;
   alpha *= originalAlpha;
   return new Color(srbg, original.getColorComponents(null), alpha);
 }
  /** Convert standard img to a buffered image. */
  public static BufferedImage convertImage(Image img) {
    int height = img.getHeight(null), width = img.getWidth(null);
    // FloatMatrix fm = new FloatMatrix( height, width ) ;
    PixelGrabber grabber = new PixelGrabber(img, 0, 0, width, height, false);
    try {
      grabber.grabPixels();
    } catch (InterruptedException e) {
      System.out.println(e);
    }
    Object pixels = grabber.getPixels();
    ColorModel cm = grabber.getColorModel();

    BufferedImage bimg = null;

    // REVISIT  Makes some unwarranted assumptions about the layout of the PixelGrabber data
    // as being either int (ARGB?) or byte (gray scale?)
    if (pixels instanceof int[]) {
      int[] arr = (int[]) pixels;
      byte[] barray = new byte[arr.length * 3];
      int k = 0;
      for (int j = 0; j < arr.length; j++) {
        int l = arr[j];
        barray[k++] = (byte) (l & 0xFF);
        barray[k++] = (byte) ((l >>> 8) & 0xFF);
        barray[k++] = (byte) ((l >>> 16) & 0xFF);
      }
      ColorModel ccm =
          new ComponentColorModel(
              ICC_ColorSpace.getInstance(ICC_ColorSpace.CS_sRGB),
              new int[] {8, 8, 8},
              false,
              false,
              Transparency.OPAQUE,
              DataBuffer.TYPE_BYTE);
      DataBuffer bbuf = new DataBufferByte(barray, barray.length);
      SampleModel bmodel =
          new PixelInterleavedSampleModel(
              DataBuffer.TYPE_BYTE, width, height, 3, 3 * width, new int[] {2, 1, 0});

      WritableRaster raster = Raster.createWritableRaster(bmodel, bbuf, new Point(0, 0));
      bimg = new BufferedImage(ccm, raster, false, new Hashtable());
    } else if (pixels instanceof byte[]) { // Assume gray scale model?
      byte[] arr = (byte[]) pixels;
      byte[] barray = new byte[arr.length * 3];
      int k = 0;
      for (int j = 0; j < arr.length; j++) {
        byte l = arr[j];
        barray[k++] = l;
        barray[k++] = l;
        barray[k++] = l;
      }
      ColorModel ccm =
          new ComponentColorModel(
              ICC_ColorSpace.getInstance(ICC_ColorSpace.CS_sRGB),
              new int[] {8, 8, 8},
              false,
              false,
              Transparency.OPAQUE,
              DataBuffer.TYPE_BYTE);
      DataBuffer bbuf = new DataBufferByte(barray, barray.length);
      SampleModel bmodel =
          new PixelInterleavedSampleModel(
              DataBuffer.TYPE_BYTE, width, height, 3, 3 * width, new int[] {2, 1, 0});

      WritableRaster raster = Raster.createWritableRaster(bmodel, bbuf, new Point(0, 0));
      bimg = new BufferedImage(ccm, raster, false, new Hashtable());
    } else {
      throw new RuntimeException("Unexpected data.");
    }
    return bimg;
  }