FRZ–Image Freeze
Freezes the active video or test pattern to allow a detailed examination of a single frame of an
otherwise moving image.
Commands
Command
Description
Values
FRZ <0 | 1>
Freezes the active video or test pattern. This
command is only available if video
electronics are on.
0 = Disables freezing of current video
(Default)
1 = Freezes the current video
GAM–Gamma Power Value
Defines the exponent used in a standard Power Law function.
This command is only available if the base gamma curve is set to Power Law function.
The gamma control and files are set when the PIU command is off.
Commands
Command
Description
Values
GAM <exponent>
Sets the exponent for the Power Law function used for the gamma
transfer function.
1000 to 3000
2200 (Default)
GAM+SLOP <value>
Defines the slope of the linear section at the bottom of the curve.
1 to 100
1 (Default)
GAM+BLKA <value>
Adjusts the contrast ratio of the ITU-R BT.1886 gamma curve. The
contrast ratio value is approximate. This command is only available
if video electronics are on. (Saved value)
1000 to 5000
2000 (Default)
Examples
Set the base gamma curve function to 2.6:
(GAM 2600)
Set the base gamma curve function to 1.0:
(GAM 1000)
Related information
BGC–Base Gamma Curve (on page 15)
Serial API commands
Boxer 4K Serial API Commands Technical Reference
28
020-101697-05 Rev. 1 (07-2017)
Copyright
©
2017 Christie Digital Systems USA Inc. All rights reserved.
