code: public Image getImage() throws BadElementException {
          paintCode();
          byte g4[] = CCITTG4Encoder.compress(outBits, bitColumns, codeRows);
          return Image.getInstance(bitColumns, codeRows, false, Image.CCITTG4, (options & PDF417_INVERT_BITMAP) == 0 ? 0 : Image.CCITT_BLACKIS1, g4, null);
      }
docs: Gets an <CODE>Image</CODE> with the barcode. The image will have to be
  scaled in the Y direction by <CODE>yHeight</CODE>for the barcode
  to have the right printing aspect.
  @return the barcode <CODE>Image</CODE>
  @throws BadElementException on error