docs: public static <I extends ImageGray<I>, T extends ImageGray>
  	T transform( I input , T transformed ) {
  		if( input instanceof GrayF32) {
  			return (T)IntegralImageOps.transform((GrayF32)input,(GrayF32)transformed);
  		} else if( input instanceof GrayF64) {
  			return (T)IntegralImageOps.transform((GrayF64)input,(GrayF64)transformed);
  		} else if( input instanceof GrayU8) {
  			return (T)IntegralImageOps.transform((GrayU8)input,(GrayS32)transformed);
  		} else if( input instanceof GrayS32) {
  			return (T)IntegralImageOps.transform((GrayS32)input,(GrayS32)transformed);
  		} else if( input instanceof GrayS64) {
  			return (T)IntegralImageOps.transform((GrayS64)input,(GrayS64)transformed);
  		} else {
  			throw new IllegalArgumentException("Unknown input type: "+input.getClass().getSimpleName());
  		}
  	}