původní | barevně kódovaný |
# Date/Time : 2007:03:25 20:25:32 # Resolution : 1280 x 960 in jpeg (1424x1076 in pgm/405.pgm) # Focal length : 5.7mm (35mm equivalent: 39mm) # CCD width : 5.32mm # Exposure time: 0.125 s (1/8) # 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)* 0.00266 # % R G1 G2 B readings R G B L / cd/m2 1 -70 -66 -67 -69 -0.322 -0.177 -0.288 -0.228 10 -33 -30 -31 -33 -0.152 -0.0811 -0.138 -0.106 50 0 0 0 0 0.00 0.00 0.00 0.00 90 45 49 50 41 0.207 0.132 0.171 0.158 99 84 93 93 79 0.386 0.247 0.330 0.296 100 15876 15873 15873 15874 73.0 42.2 66.2 53.0 # veiling luminance 4.7E-4 cd/m2, flux from 1.73E-4 sr ( 8.59E-7 sr/4px) is 0.00102 lx ( 0.00133 lx tilewise); # tilewise luminance 0.217 cd/m2 with rel. SD 614 % (points with luminances over 2.0 and below 32 ) # Fuji Devignetting: 1 # dark frame dark/408.pgm subtracted from all values # Red average=1818.0 minimum= -163 maximum=15876 out of range: 765895 # GrUp average=2384.3 minimum= -147 maximum=15873 out of range: 765907 # GrDw average=2447.8 minimum= -142 maximum=15873 out of range: 765904 # Blue average=2805.8 minimum= -144 maximum=15874 out of range: 765868 End of results of "raw2lum" (version 1.29) with parameters: -c fuji -ft -sm60:8 -np -nt -nh -d dark/408.pgm -L2 -U32 -G -i 405.txt -e 405.eps -n 405.ppm -t 118 -s71:76 pgm/405.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.