Filenames of the 47 (out of 5760) images whose corresponding strobe did not go off:

yaleB01_P01A+095E+00.pgm
yaleB01_P02A+095E+00.pgm
yaleB01_P03A+095E+00.pgm
yaleB01_P04A+095E+00.pgm
yaleB01_P05A+095E+00.pgm
yaleB01_P06A+095E+00.pgm
yaleB01_P07A+095E+00.pgm
yaleB01_P07A-005E+10.pgm
yaleB01_P08A+095E+00.pgm
yaleB02_P00A+095E+00.pgm
yaleB02_P01A+095E+00.pgm
yaleB02_P02A+095E+00.pgm
yaleB02_P02A-005E+10.pgm
yaleB02_P03A+095E+00.pgm
yaleB02_P04A+095E+00.pgm
yaleB02_P05A+095E+00.pgm
yaleB02_P06A+095E+00.pgm
yaleB05_P08A-110E-20.pgm
yaleB06_P03A-005E+10.pgm
yaleB09_P00A+050E-40.pgm
yaleB09_P01A+050E-40.pgm
yaleB09_P02A+050E-40.pgm
yaleB09_P03A+050E-40.pgm
yaleB09_P04A+050E-40.pgm
yaleB09_P05A+050E-40.pgm
yaleB09_P05A-110E-20.pgm
yaleB09_P06A+050E-40.pgm
yaleB09_P06A-110E-20.pgm
yaleB09_P07A+050E-40.pgm
yaleB09_P07A-110E-20.pgm
yaleB09_P08A+050E-40.pgm
yaleB10_P00A+050E-40.pgm
yaleB10_P01A+050E-40.pgm
yaleB10_P01A-110E+15.pgm
yaleB10_P01A-110E-20.pgm
yaleB10_P02A+050E-40.pgm
yaleB10_P02A-110E-20.pgm
yaleB10_P03A+050E-40.pgm
yaleB10_P04A+050E-40.pgm
yaleB10_P04A-110E-20.pgm
yaleB10_P05A+050E-40.pgm
yaleB10_P05A-110E-20.pgm
yaleB10_P06A+050E-40.pgm
yaleB10_P06A-110E-20.pgm
yaleB10_P07A+050E-40.pgm
yaleB10_P08A+050E-40.pgm
yaleB10_P08A-110E-20.pgm