PHOTONIS Nocturn - Figure 14 GUI Contrast Controls Tab

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NVT 200-LC-0103
Revision: D
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 Low Gain Max. Int.- Maximum integration time value (in number of lines) used by the AGC to
recalculate new exposure setting in the low gain mode. If the new calculated exposure is greater
than that number, the AGC algorithm will increase the gain of the sensor.
 Low Gain Trans. Int.- Default exposure time (in number of lines) that the sensor is set to when
the AGC adjust the gain between the high and low setting.
 High Gain Min. Int.- Minimum integration time value (in number of lines) used by the AGC to
recalculate new exposure setting in the high gain mode. If the new calculated exposure is
smaller than that number, the AGC algorithm will decrease the gain of the sensor. High Gain
Max Int. control on the AGC allow minimum frame rate set up : a value of 1066 corresponds to
60fps, 2132 to 30fps, 4264 to 15fps, …
 Low Gain Max. Int.- Maximum integration time value (in number of lines) used by the AGC to
recalculate new exposure setting in the high gain mode.
 Low Gain Trans. Int.- Default exposure time (in number of lines) that the sensor is set to when
the AGC adjust the gain between the low and high setting.
Figure 14 GUI Contrast Controls Tab
Contrast Controls
 Cumulative Histogram %- Represents the upper and lower limit used in the cumulative
histogram to recalculate the upper and lower boundaries of the histogram stretching.
 Contrast Mode-
o NONE- Disables contrast enhancement.
o STRETCHING- Stretches the contrast such that the 0 value of the digital output
corresponds to the lower limit of the cumulative histogram bin number and the 1023