původní | barevně kódovaný |
# Date/Time : 2007:03:25 20:25:01 # Resolution : 1280 x 960 in jpeg (1424x1076 in pgm/402.pgm) # Focal length : 5.7mm (35mm equivalent: 39mm) # CCD width : 5.32mm # Exposure time: 0.001 s (1/2000) # 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)* 0.664 # % R G1 G2 B readings R G B L / cd/m2 1 -71 -70 -70 -70 -81.6 -46.5 -73.0 -58.8 10 -36 -34 -34 -34 -41.4 -22.6 -35.5 -29.2 50 0 0 0 0 0.00 0.00 0.00 0.00 90 36 34 34 34 41.4 22.6 35.5 29.2 99 72 70 71 70 82.8 46.8 73.0 59.4 100 8724 16191 16191 10255 1.00E4 1.07E4 1.07E4 1.05E4 # veiling luminance 0.0061 cd/m2, flux from 5.20E-5 sr ( 8.59E-7 sr/4px) is 0.119 lx ( 0.129 lx tilewise); # tilewise luminance 49.9 cd/m2 with rel. SD 676 % (points with luminances over 5.1E2 ) # Fuji Devignetting: 1 # dark frame dark/410.pgm subtracted from all values # Red average=2163.2 minimum= -168 maximum= 8724 out of range: 766049 # GrUp average=3735.3 minimum= -138 maximum=16191 out of range: 766051 # GrDw average=3904.9 minimum= -156 maximum=16191 out of range: 766050 # Blue average=2074.9 minimum= -161 maximum=10255 out of range: 766049 End of results of "raw2lum" (version 1.29) with parameters: -c fuji -ft -sm60:8 -np -nt -nh -d dark/410.pgm -L512 -G -i 402.txt -e 402.eps -n 402.ppm -t 118 -s71:76 pgm/402.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.