FLIR BLACKFLY S GIGE Getting Started Manual page 11

ADVANCED CAMERA SETTINGS
Changing gamma and black levels
Black level can be considered a form of brightness adjustment, where the black level corresponds to the
minimum value that any pixel on the camera sensor will return. By increasing the black level value we can
make the image brighter.
Our recommendation is to leave this at the default values.
For more details on improving your video image please see
photos.
this support article which has comparison
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