Gain And Offset - Runco RS-1100 CineWide Owner's Operating Manual

• Analog RGBHV: Select Analog RGBHV to adjust the Gain and Offset for the red,
green and blue channels. These controls are similar to those in the White Balance
menu (described above), but only affect RGB high-definition signals.
The Gain controls increase or decrease the full-scale input range; the Offset controls
shift the entire range, resulting in a change in brightness. Figure 4-6 shows how the
Gain and Offset controls interact with each other.
1.0
0.5
0
0
Figure 4-6. Gain and Offset
Generally, higher Gain settings reduce the image contrast; higher
Note
Offset settings reduce the image brightness.
• Analog YPbPr: Select Analog RGBHV from the HDTV Adjust sub-menu to:
• View input signal timing information.
• Adjust the Brightness and Contrast associated with a Video Black Level. The
Brightness and Contrast settings made here can be recalled by choosing the
associated Video Black Level, either here (choose "Setup," then select 0 IRE or
7.5 IRE) or in the Video Black Level sub-menu (refer to Video Black Level on
page 60).
• Adjust the Gain and Offset for the Pb and Pr channels. These controls only affect
component high-definition signals.
Runco RS-1100 Series Owner's Operating Manual
OFFSET = 127
OFFSET = 63
OFFSET = 0
OFFSET = 127
OFFSET = 63
OFFSET = 0
255
GAIN
57
Operation
Offset-R
Offset-G
Offset-B
Gain-R
Gain-G
Gain-B
Timing 1080ix60
Setup 0 IRE
Brightness
Contrast
Pb Gain
Pr Gain
Pb Offset
Pr Offset
+55
+55
+55
+145
+145
+145
+58
+148
+135
+135
+60
+60