docs: public static void magnitude( ImageInterleaved transform , GrayF magnitude ) {
  		if( transform instanceof InterleavedF32 ) {
  			DiscreteFourierTransformOps.magnitude((InterleavedF32) transform, (GrayF32) magnitude);
  		} else if( transform instanceof InterleavedF64 ) {
  			DiscreteFourierTransformOps.magnitude((InterleavedF64) transform, (GrayF64) magnitude);
  		} else {
  			throw new IllegalArgumentException("Unknown image type");
  		}
  	}