docs: public static <Input extends ImageGray<Input>,Output extends ImageGray<Output>>
  	ImageDistort<Planar<Input>,Planar<Output>>
  	distortPL(boolean cached , InterpolatePixelS<Input> interp, Class<Output> outputType)
  	{
  		ImageDistort<Input, Output> distortSingle = distortSB(cached, interp, outputType);
  		return new ImplImageDistort_PL<>(distortSingle);
  	}