SuppressXByY      635 butteraugli.cc   ps.uhf[0] = SuppressXByY(xsize, ysize, ps.uhf[0], ps.uhf[1], suppress[0]);
SuppressXByY      636 butteraugli.cc   ps.hf[0] = SuppressXByY(xsize, ysize, ps.hf[0], ps.hf[1], suppress[1]);