  float h0[] = { -0.00053074293540, -0.02605448687217, 0.05728889428838,
    0.17832217729899, 0.01307590580499, -0.01753406399373
  };
  float h1[] = { -0.00303414161658, -0.02792461412931, 0.10798310809997,
    0.15241687973164, -0.01607462410569, -0.00879892438897
  };
  float h2[] = { -0.00879892438897, -0.01607462410569, 0.15241687973164,
    0.10798310809997, -0.02792461412931, -0.00303414161658
  };
  float h3[] =
    { -0.01753406399373, 0.01307590580499, 0.17832217729899, 0.05728889428838,
    -0.02605448687217, -0.00053074293540
  };

