Expressing The Gradation Of A Picture (Knee, Gamma) - Panasonic AG-UX90PJ Book

5. Understanding scene file operations

5-5. Expressing the gradation of a picture (Knee, Gamma)

Due to bright sunny weather or lighting, "blown-out highlights" can sometimes occur, where bright
areas look completely white. This is a phenomenon caused by the luminance signals that are out
of the camera's Dynamic Range (processing range). In order to put such high-brightness input
signals within the Dynamic Range, Knee function can be used to compress the gradation.
MENU > SCENE FILE >
[KNEE MODE] AUTO / MANUAL / OFF
AUTO: Adjusts master point and slope automatically.
MANUAL: Knee master point and slope can be adjusted manually.
OFF: Do not use Knee controls.
[KNEE MASTER POINT] 80.0 - - - 93.0 - - - 107.0
Sets the position of Knee Point. (* Enabled when KNEE MODE is MANUAL)
[KNEE MASTER SLOPE] 0 - - - 85 - - - 99
Sets the slope of Knee. (* Enabled when KNEE MODE is MANUAL)
Output signal level
109%
100%
90%
80%
This is for explanation purposes only and may be different from actual measurements.
(Factory default settings underlined)
Knee point
50
Knee slope
Input brightness level