UweZ                                                   4feb2002

The following LUT's have been developed for usage with IMV.exe, IC.exe or
wtScope.exe to linearize the following transfer curves:

LUT10bitlat2delog.txt  y = 100 * 10^(2*x/1024)
                       Fuji AC-3 intensity proportional, Latitude 2 

LUT12bit1000ln.txt     y = 1000 * ln(4095-x-200)
                       LS85 wall thickness proportional, fog den. sub.

LUT12bitdelog.txt      y = 65 535 * 10^(-(4095-GW)/1000)
                       LS 85 oder ACR-2000 intensity proportional

LUT12bitlog.txt        y = 10 000 * log(4096/(x+1))
                       12 bit CCD signal -> optical density * 10000

LUT12bitneg.txt        y = 4095 - x
                       LS 85 in optical density * 1000

LUT12bitneg-fog.txt    y = 4095 - x - 200
                       LS 85 to netto film density, i.e. fog density 
                       subtracted

LUT12bitnegHD.txt      y = 4095 - x + 1000
                       LS 85 SDR to optical density * 1000

LUT12bitsquare.txt     y = (x*x) / 4095
                       AGFA DPS or CR Tower -> intensity proportional

LUT12bitsquare16.txt   y = (x*x) / 256
                       AGFA DPS or CR Tower intensity linear, 16 bit output

LUT12bitsquareln.txt   y = 1000 * ln((x+1)*(x+1))
                       AGFA DPS or CR Tower wall thickness proportional

LUT14bitlog.txt        y = 10 000 * log(163847(x+1))
                       14 bit CCD signal -> optical density * 10000

LUT16bit1000ln.txt     y = 1000 * ln(x)
                       flat panel detectors wall thickness proportional

LUT16bit-logln.txt     y = 1000 * ln(10 000*log(65536/(x+1)) - 2000)
                       16 bit CCD signal wall thickness proportional, 
                       fog density subtracted

LUT16bitcbrt.txt       y = 1000 * exp(1/3*ln(x))
                       16 bit Cubic root weighted, visual transfer curve

LUT16bitlinear.txt     y = x
                       idendity LUT for completeness and testing

LUT16bitlog.txt        y = 10 000 * log(65536*(x+1))
                       16 bit CCD signal -> optical density * 10000

LUT16bitneg.txt        y = 65535 - x
                       16 bit signal inverted

LUT16bitneglog.txt     y = 5000 - 1000 * log(65535/x)
                       16 bit CCD signal -> 1000*(5 - optical density)

LUT16bitsqrt.txt       y = 256 * sqrt(x)
                       16-Bit Signal square root weighted

LUT16bitlog-fog.txt    y = 10 000*(log(65536/(x+1)) - 2000
                       16 bit CCD Signal -> optical density minus film base

LUTdocs.txt            this documentation file, not usable as LUT!
