code: public float get(int x, int y) {
  		if (!isInBounds(x, y))
  			throw new ImageAccessException("Requested pixel is out of bounds: ( " + x + " , " + y + " )");
  
  		return unsafe_get(x,y);
  	}
docs: Returns the value of the specified pixel.
  
  @param x pixel coordinate.
  @param y pixel coordinate.
  @return Pixel intensity value.