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[psana] # Command to run this script from release directory: # psana -c ImgAlgos/data/psana-split.cfg <path-to-xtc-file-name-pattern-for-one-run> #files = /reg/d/ana12/xcs/xcsi0112/xtc/e167-r0015-*.xtc skip-events = 0 events = 500 modules = ImgAlgos.Tahometer ImgAlgos.PrincetonImageProducer ImgAlgos.ImgCalib ImgAlgos.ImgIntMonCorr ImgAlgos.ImgIntForBins ImgAlgos.ImgVsTimeSplitInFiles ImgAlgos.ImgAverage [ImgAlgos.Tahometer] print_bits = 7 [ ImgAlgos.PrincetonImageProducer ] source = DetInfo(:Princeton) key_in = key_out = img print_bits = 1 [ImgAlgos.ImgCalib] source = DetInfo(:Princeton) key_in = img key_out = calibrated fname_peds = /reg/neh/home1/dubrovin/LCLS/PSANA-V01/work/t1-xcsi0112-r0020-peds-ave.txt fname_bkgd = fname_gain = fname_mask = fname_rms = threshold_nrms = 0 do_threshold = true threshold = 20.0 below_thre_value = 0 print_bits = 5 [ImgAlgos.ImgIntMonCorr] source = DetInfo(:Princeton) key_in = calibrated key_out = imon_corrected fname_imon_cfg = /reg/neh/home1/dubrovin/LCLS/PSANA-V01/work/t1-cora-xcsi0112-r0015-imon-cfg.txt print_bits = 1 [ImgAlgos.ImgIntForBins] source = DetInfo(:Princeton) key_in = imon_corrected fname_map_bins = /reg/neh/home1/dubrovin/LCLS/PSANA-V01/work/t1-cora-r0015-map-static-q.txt fname_int_bins = /reg/neh/home1/dubrovin/LCLS/PSANA-V01/work/t1-cora-r0015-int-static-q.txt number_of_bins = 1 print_bits = 33 [ImgAlgos.ImgVsTimeSplitInFiles] source = DetInfo(:Princeton) key = imon_corrected fname_prefix = /reg/neh/home1/dubrovin/LCLS/PSANA-V01/work/t1-cora file_type = bin add_tstamp = false ampl_thr = 20.0 ampl_min = 01 nfiles_out = 8 print_bits = 29 #======EOF====== [ImgAlgos.ImgAverage] source = DetInfo(:Princeton) key = calibrated avefile = /reg/neh/home1/dubrovin/LCLS/PSANA-V01/work/t1-xcsi0112-r0015-data-ave.txt rmsfile = /reg/neh/home1/dubrovin/LCLS/PSANA-V01/work/t1-xcsi0112-r0015-data-rms.txt #======EOF====== |
PSANA module ImgAlgos.
PSANA module ImgAlgos.ImgCalib
- ImgAlgos.ImgCalib.cpp
- ImgAlgos.ImgCalib.h
This module is responsible for basic image intensity transformation. For correlation analysis it applys a couple of corrections: - subtract pedestals and
- apply LLD threshold.
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Evaluation of correlators:
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ImgAlgos/include/CorAna.h: typedef float cor_t;
void CorAnaData::evaluateCorTau(unsigned tau) // tau in number of frames between images
{
m_log << "\nCorAnaData::evaluateCorTau(tau): tau=" << tau;
std::fill_n(m_sum_gi, m_blk_size, double(0));
std::fill_n(m_sum_gf, m_blk_size, double(0));
std::fill_n(m_sum_g2, m_blk_size, double(0));
std::fill_n(m_sum_st, m_blk_size, unsigned(0));
std::fill_n(m_cor_gi, m_blk_size, cor_t(0));
std::fill_n(m_cor_gf, m_blk_size, cor_t(0));
std::fill_n(m_cor_g2, m_blk_size, cor_t(0));
for (unsigned ti=0; ti<m_tind_size-tau; ti++) {
unsigned tf=ti+tau;
if ( ! (tf<m_tind_size) ) break;
// get the event index in array for time index
int evi = m_tind_to_evind[ti];
int evf = m_tind_to_evind[tf];
// If the event does not exist for specified time index -> skip it in sum
if(evi<0) continue;
if(evf<0) continue;
sumCorTau((unsigned)evi,(unsigned)evf);
}
}
//----------------
void CorAnaData::sumCorTau(unsigned i, unsigned f) // i and f are the event indexes
{
data_t* p_i = &m_data[i*m_blk_size];
data_t* p_f = &m_data[f*m_blk_size];
double Ii, If;
for(unsigned pix=0; pix<m_blk_size; pix++) {
Ii = p_i[pix];
If = p_f[pix];
m_sum_gi[pix] += Ii;
m_sum_gf[pix] += If;
m_sum_g2[pix] += Ii*If;
m_sum_st[pix] ++;
}
}
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Averaging:
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for(unsigned pix=0; pix<m_blk_size; pix++) {
if(m_sum_st[pix]<1) continue;
m_cor_gi[pix] = cor_t( m_sum_gi[pix] / m_sum_st[pix] );
m_cor_gf[pix] = cor_t( m_sum_gf[pix] / m_sum_st[pix] );
m_cor_g2[pix] = cor_t( m_sum_g2[pix] / m_sum_st[pix] );
}
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Module ImgAlgos.CorAna
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