LG UltraFine 65EP5G Owner's Manual page 34

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• [Mastering Peak]: Sets the mastering peak value, which is part of the HDMI HDR packet metadata.
- [Auto]: Sets to the mastering park value sent by the device.
- [0]: Sets the mastering peak value to zero.
- [400]: Sets the mastering peak value to 400.
- [540]: Sets the mastering peak value to 540.
- [700]: Sets the mastering peak value to 700.
- [1000]: Sets the mastering peak value to 1000.
- [2000]: Sets the mastering peak value to 2000.
- [3000]: Sets the mastering peak value to 3000.
- [4000]: Sets the mastering peak value to 4000.
- [10000]: Sets the mastering peak value to 10000.
NOTE
• HLG is a type of HDR, but the signal packets in this format do not contain metadata. Since the tone curve is fixed
according to the mastering peak information, image quality does not change according to the mastering peak.
• The corresponding settings can be changed with no signals in HDMI, SDI, SFP+ or with signals in SDR/HLG/Dolby;
however, the actual image quality settings are applied when running in HDR.
• [SDI Color Format]: Sets the pixel encoding value, which is part of the SDI Packet AVI Infoframe.
- [Auto]: Sets to the pixel encoding value received from the device.
- [RGB444]: Sets the pixel encoding value to RGB444.
- [YCbCr444]: Sets the pixel encoding value to YCbCr444.
- [YCbCr422]: Sets the pixel encoding value to YCbCr422.
NOTE
• This feature works in SDI and SFP+.