Cobalt Digital COMPASS 9229-QS Quad-Split Video Processor - Manual (Page 38)

4-2 •••• Operation 9229-QS User Manual •••• (V 1.2)
Adjusting the Proc Amp Controls
Each output on the card has a Proc Amp that can adjust the black offset, the video gain, the chroma
gain and the CB gain. This section briefly outlines how to adjust the options available in the Proc Amp
tab.
Use the following procedure to adjust an output using a Proc Amp:
1. Display the Device tab of the card by double-clicking its status indicator in the Basic
Tree View.
2. Select an output signal to adjust as follows:
• Select the Proc Amps tab.
• Select the Output tab for the output signal you want to adjust. The Output tabs are
located at the bottom of the Proc Amps tab.
3. Select the Enable box to ensure the color adjustments are applied. The Enable box must
be selected in order for any color correction to take effect on the selected output.
4. Adjust the Video Gain of the card video outputs as follows:
• Use the Video Gain slider to adjust the amount of Video Gain you want to apply.
Increasing overall gain causes an increase in contrast while also making colors more
saturated and vivid. Decreasing overall gain causes a decrease in contrast while de-
saturating colors.
5. Adjust the Chroma Gain of the card video outputs as follows:
• Use the Chroma Gain slider to adjust the chrominance video signal components (Cr
and Cb) simultaneously. Increasing the chroma gain value causes the video signal
colors to become increasingly saturated and more vivid. Decreasing the chroma gain
value de-saturates color from the video signal until it is black and white.
6. Adjust the CB Gain of the card video outputs as follows:
• Use the CB Gain slider to adjust the Cb component of the chrominance video signal.
Increasing the Cb Gain value causes the video signal colors to become increasingly
saturated with blue. Decreasing the Cb Gain value desaturates blue from the video
signal.
7. Adjust the Black Offset of the card video outputs as follows:
• Use the Black Offset slider to adjust the Black Offset you want to apply. Increasing
the Black Offset value causes a lightening effect. Decreasing the Black Offset value
causes a darkening effect.
Operating Tip — To reset the Proc Amp settings to the default values, click Reset
and then Yes in the Confirm dialog box.
This completes the procedure for adjusting an output using a Proc Amp.