code: public static <T extends ImageGray<T>>
  	InterestPointDetector<T> fastHessian( ConfigFastHessian config ) {
  		return new WrapFHtoInterestPoint(FactoryInterestPointAlgs.fastHessian(config));
  	}
docs: Creates a {@link FastHessianFeatureDetector} detector which is wrapped inside
  an {@link InterestPointDetector}
  
  @param config Configuration for detector.  Pass in null for default options.
  @return The interest point detector.
  @see FastHessianFeatureDetector