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;
}
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;
}