docs: public static void process(GrayF32 orig, GrayF32 derivX, GrayF32 derivY, @Nullable ImageBorder_F32 border) {
  		InputSanityCheck.reshapeOneIn(orig, derivX, derivY);
  
  //		GradientSobel_Outer.process_F32(orig, derivX, derivY);
  		if( BoofConcurrency.USE_CONCURRENT ) {
  			GradientSobel_UnrolledOuter_MT.process_F32_sub(orig, derivX, derivY);
  		} else {
  			GradientSobel_UnrolledOuter.process_F32_sub(orig, derivX, derivY);
  		}
  
  		if( border != null ) {
  			border.setImage(orig);
  			ConvolveJustBorder_General_SB.convolve(kernelDerivX_F32, border,derivX);
  			ConvolveJustBorder_General_SB.convolve(kernelDerivY_F32, border,derivY);
  		}
  	}