code: public int getUnsignedPixelValue(short[] pixelValues, int width, int x,
  			int y) {
  		short pixelValue = getPixelValue(pixelValues, width, x, y);
  		int unsignedPixelValue = getUnsignedPixelValue(pixelValue);
  		return unsignedPixelValue;
  	}
docs: Get the pixel value as a 16 bit unsigned value as an integer
  
  @param pixelValues
  "unsigned short" pixel values
  @param width
  image width
  @param x
  x coordinate
  @param y
  y coordinate
  @return unsigned int pixel value