code: public static BufferedImage loadPGM( String fileName , BufferedImage storage ) throws IOException {
  		return loadPGM(new FileInputStream(fileName), storage);
  	}
docs: Loads a PGM image from a file.
  
  @param fileName Location of PGM image
  @param storage (Optional) Storage for output image.  Must be the width and height of the image being read.
  Better performance of type BufferedImage.TYPE_BYTE_GRAY.  If null or width/height incorrect a new image
  will be declared.
  @return The image
  @throws IOException Thrown if there is a problem reading the image