code: @SuppressWarnings({"unchecked"})
  	public static <T extends ImageGray<T>>
  	DescribeRegionPoint<T,NccFeature> pixelNCC( int regionWidth , int regionHeight , Class<T> imageType ) {
  		return new WrapDescribePixelRegionNCC(
  				FactoryDescribePointAlgs.pixelRegionNCC(regionWidth,regionHeight,imageType),imageType);
  	}
docs: Creates a region descriptor based on normalized pixel intensity values alone.  This descriptor
  is designed to be light invariance, but is still less stable than more modern ones.
  
  @see boofcv.alg.feature.describe.DescribePointPixelRegionNCC
  
  @param regionWidth How wide the pixel region is.
  @param regionHeight How tall the pixel region is.
  @param imageType Type of image it will process.
  @return Pixel region descriptor