původní | barevně kódovaný |
# Date/Time : 2007:03:25 20:24:53 # Resolution : 1280 x 960 in jpeg (1424x1076 in pgm/401.pgm) # Focal length : 5.7mm (35mm equivalent: 39mm) # CCD width : 5.32mm # Exposure time: 0.008 s (1/125) # Aperture : f/2.8 # ISO equiv. : 200 # Selected image percentils L=(1.730*0.35*R+1.000*0.65*G+1.570*0.00*B)* 0.0415 # % R G1 G2 B readings R G B L / cd/m2 1 -71 -69 -69 -69 -5.10 -2.87 -4.50 -3.65 10 -35 -33 -34 -34 -2.51 -1.39 -2.22 -1.78 50 0 0 0 0 0.00 0.00 0.00 0.00 90 37 36 36 35 2.66 1.49 2.28 1.90 99 74 74 73 72 5.32 3.05 4.69 3.84 100 16202 16206 16206 16207 1.16E3 673 1.06E3 845 # veiling luminance 0.0018 cd/m2, flux from 1.72E-4 sr ( 8.59E-7 sr/4px) is 0.0225 lx ( 0.0340 lx tilewise); # tilewise luminance 6.90 cd/m2 with rel. SD 507 % (points with luminances over 32 and below 5.1E2 ) # Fuji Devignetting: 1 # dark frame dark/409.pgm subtracted from all values # Red average=2976.1 minimum= -146 maximum=16202 out of range: 765879 # GrUp average=3728.7 minimum= -162 maximum=16206 out of range: 765896 # GrDw average=3849.1 minimum= -149 maximum=16206 out of range: 765896 # Blue average=4655.9 minimum= -150 maximum=16207 out of range: 765823 End of results of "raw2lum" (version 1.29) with parameters: -c fuji -ft -sm60:8 -np -nt -nh -d dark/409.pgm -L32 -U512 -G -i 401.txt -e 401.eps -n 401.ppm -t 118 -s71:76 pgm/401.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.