Photon Focus MV1-D1024E, User Manual, Page: 28 / 109

4 Functionality
®
0
50
100
150
200
250
300
Typical LinLog2 Response Curve − Varying Parameter Time2
Illumination Intensity
Output grey level (8 bit) [DN]
T2 = 950
T2 = 960
T2 = 970
T2 = 980
T2 = 990
Time1=850, Value1=19, Value2=18
Figure 4.14: Response curve for different LinLog settings in LinLog3 mode
4.2.3 Skimming
Skimming is a Photonfocus proprietary technology to enhance detail in dark areas of an image.
Skimming provides an adjustable level of in-pixel gain for low signal levels. It can be used
together with LinLog
®
to give a smooth monotonic transfer function from high gain at low
levels, through normal linear operation, to logarithmic compression for high signal levels (see
Fig. 4.15). The resulting response is similar to a gamma correction.
G r e y
V a l u e
L i g h t I n t e n s i t y
0 %
1 0 0 %
L i n e a r
R e s p o n s e
S a t u r a t i o n
S k i m m i n g
Figure 4.15: Response curve for different skimming settings
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