static double DrsCalibrate::GetPixelStats ( float *  ptr, const float *  data, uint16_t  roi, uint16_t  begskip = 0, uint16_t  endskip = 0  )

inlinestatic

Definition at line 855 of file DrsCalib.h.

References end, i, and DrsCalibrate::Step::pos.

Referenced by EventBuilderWrapper::applyCalib(), and RawDataViewer::ApplyCalibration().

    {
        if (roi==0)
            return -1;

        // Skip first 10 samples
        const uint beg = roi>begskip ? begskip : 0;
        const uint end = roi-beg>endskip ? roi-endskip : roi;
        const uint len = end-beg;

        double max = 0;
        double patch = 0;
        for (uint i=0; i<1440; i++)
        {
            const float *vec = data+i*roi;

            uint   pos  = beg;
            double sum  = vec[beg];
            double sum2 = vec[beg]*vec[beg];

            for (uint j=beg+1; j<end; j++)
            {
                sum  += vec[j];
                sum2 += vec[j]*vec[j];

                if (vec[j]>vec[pos])
                    pos = j;
            }
            sum  /= len;
            sum2 /= len;
            sum2 -= sum*sum;

            if (i%9!=8)
                patch += vec[pos];
            else
            {
                if (patch > max)
                    max = patch;
                patch = 0;
            }

            *(ptr+0*1440+i) = sum;
            *(ptr+1*1440+i) = sum2<0 ? 0 : sqrt(sum2);
            *(ptr+2*1440+i) = vec[pos];
            *(ptr+3*1440+i) = pos;
        }

        return max/8;
    }

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