code: public static <T extends ImageGray<T>> void median(Planar<T> input, T output) {
  		median(input, output, 0, input.getNumBands() - 1);
  	}
docs: Computes the median for each pixel across all bands in the {@link Planar} image.
  
  @param input Planar image
  @param output Gray scale image containing median pixel values