7814UDX-4K Series
HD/3G/UHD Up/Down/Cross Converters
Page - 26
Revision 1.2
5.3.1. Dynamic Range Selection
Input Dynamic Range:
The input dynamic range control specifies the expected SDR/HDR input format.
Available options are SDR, HDR-2084 legal, HDR-2084 Full, HDR-SLOG3, HDR-HLG as shown below.
Output Dynamic Range:
The output dynamic range control specifies the desired HDR output format.
Available options are SDR, HDR-2084 legal, HDR-2084 Full, HDR-SLOG3, HDR-HLG as shown below.
5.3.2. Advanced HDR Controls
Advanced Mode:
Advanced Mode enables the advanced HDR controls to custom modify the HDR
conversion process. When it is on, the advanced HDR controls will become available. When it is turned
off, the controls will be set to the default baseline depending on input and output HDR types.
Knee Point:
This control sets the point to where highlights are to be expanded / companded to the output
target luminance. This control has a range of 0 to 2000 nits with a default value of 120 nits.
Assumed Maximum Input Luminance:
This control defines the expected luminance level of the input
video. For 709 color space usually set to 100-120 nits and around 1000 to 2000 for HDR inputs depending
on monitor capabilities.
Target Output Luminance:
This control is used to set the desired output luminance. For 709 color space
usually set to 100-120 and around 1000 to 2000 for HDR outputs depending on monitor capabilities. The
range is 0-2000 nits.
Aperture Compensation Factor:
The aperture compensation control is used to adjust the curve above
the knee point. For best results for an HDR output, it is recommended to set this control between 3 and 5.
HDR Gamma Level:
This control is used to adjust the overall gamma correction factor above the knee
point from 0.0 to 2.0 with a default value of 1.0.
5.3.3. Colour Space Selection
Input Colour Space:
This dropdown allows the user to set the input color space.
Output Colour Space:
This dropdown allows the user to set the output color space.
Reset:
The Reset button restores all controls to the factory defaults.