DoGBlur           562 butteraugli.cc     ps.lf[i] = DoGBlur(xyb[i], kSigmaLf, 0.0f);
DoGBlur           578 butteraugli.cc     ps.mf[i] = DoGBlur(ps.mf[i], kSigmaHf, 0.0f);
DoGBlur           592 butteraugli.cc     ps.hf[i] = DoGBlur(ps.hf[i], kSigmaUhf, 0.0f);