původní | barevně kódovaný |
# Date/Time : 2007:03:25 21:16:07 # Resolution : 1280 x 960 in jpeg (1424x1076 in pgm/430.pgm) # Focal length : 15.4mm (35mm equivalent: 104mm) # CCD width : 5.32mm # Exposure time: 2.000 s # Aperture : f/3.2 # ISO equiv. : 200 # Selected image percentils L=(1.730*0.35*R+1.000*0.65*G+1.570*0.00*B)* 2.17E-4 # % R G1 G2 B readings R G B L / cd/m2 1 -55 -45 -46 -56 -0.0206 -0.00987 -0.0191 -0.0136 10 -11 0 0 -15 -0.00413 0.00 -0.00511 -0.00144 50 52 76 77 37 0.0195 0.0166 0.0126 0.0176 90 296 490 491 195 0.111 0.106 0.0664 0.108 99 503 816 814 351 0.189 0.177 0.120 0.181 100 15869 15866 15866 15867 5.96 3.44 5.40 4.32 # flux from 0.0900*0.92 sr ( 1.18E-7 sr/4px) is 0.00326 lx ( 0.00359 lx tilewise); # tilewise luminance 0.0440 cd/m2 with rel. SD 106 % (summing pixels below 15850 and with non-zero green: there is 91.7 % of them) # Fuji Devignetting: 2 # dark frame dark/429.pgm subtracted from all values # Red average= 114.1 minimum= -157 maximum=15869 over 15850: 352 zero: 11.4 % # GrUp average= 179.9 minimum= -136 maximum=15866 over 15850: 437 zero: 8.4 % # GrDw average= 179.9 minimum= -141 maximum=15866 over 15850: 455 zero: 8.2 % # Blue average= 87.7 minimum= -152 maximum=15867 over 15850: 0 zero: 15.2 % End of results of "raw2lum" (version 1.29) with parameters: -c fuji -fa -sm60:8 -np -nt -nh -d dark/429.pgm -i 430.txt -e 430.eps -n 430.ppm -t 118 -s71:76 pgm/430.pgm
Meze stupňů jsou (bráno pro řád jednoho nitu) 0.32 0.50 0.79 1.26 2.0 3.2
Odhady intenzity osvětlení asfaltových cest v luxech lze získat vynásobením jasu v nitech koeficientem 15 (pokud se v něm lampa leskne) až 30, běžně kolem 22.