/** Generate a tiled image that contains a view of the mask. */
@SuppressWarnings("restriction")
public TiledImage getMaskImage() {
TiledImage ti =
new TiledImage(
0,
0,
mwidth,
mheight,
0,
0,
new PixelInterleavedSampleModel(
DataBuffer.TYPE_BYTE, mwidth, mheight, 1, mwidth, Transform.bandstride),
new ComponentColorModel(
ColorSpace.getInstance(ColorSpace.CS_GRAY),
false,
false,
ComponentColorModel.OPAQUE,
DataBuffer.TYPE_BYTE));
WritableRaster gradRaster = ti.getWritableTile(0, 0);
DataBufferByte gradDB = (DataBufferByte) gradRaster.getDataBuffer();
byte[] gradImageData = gradDB.getData();
int maskwh = mwidth * mheight;
for (int i = 0; i < maskwh; i++) gradImageData[i] = (byte) mask[i];
return ti;
}
/** Decodes an image */
public PlanarImage decodeJAI() throws IOException {
// ------------------------------------------- construimos la imagen
int tileWidth = width, tileHeight = height;
int[] order = new int[bands];
for (int i = 0; i < bands; i++) order[i] = i;
ComponentSampleModel csm =
new ComponentSampleModel(
DataBuffer.TYPE_SHORT, tileWidth, tileHeight, tileWidth * bands, bands, order);
for (int i = 0; i < bands; i++) order[i] = 16;
ColorSpace cs;
switch (bands) {
case 1:
cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
break;
case 3:
cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
break;
default:
// F = 15 component
cs = ColorSpace.getInstance(ColorSpace.TYPE_FCLR);
}
ComponentColorModel ccm =
new ComponentColorModel(
cs, order, false, false, Transparency.OPAQUE, DataBuffer.TYPE_SHORT);
outImage = new TiledImage(0, 0, width, height, 0, 0, csm, ccm);
// --------------------------------------------------- decodificamos
decode(); // ya redefinimos aqui el setValue, asi que todo el proceso es igual
return outImage;
}
