Grass Valley 8985FS v.1.2.0 - Manual (Page 24)

24 8985FSP/FS/PRC — Instruction Manual
Configuration
Split Screen Control
A Split Screen function can be enabled for comparing the unprocessed
input to the processed output. This function is very useful when using the
color correction or video processor controls. The Split Screen orientation
can be set vertically or horizontally and can be adjusted for the amount of
video to be displayed (10-90%).
Video Timing and Loss of Signal Controls
On a 8985FSP/FS module with Frame Sync, the following timing adjust-
ments are available:
• Horizontal Timing – adjusts the horizontal delay of the channel output
in pixels
• Vertical Timing – adjusts vertical delay in line increments
Also available on the 8985FSP with Frame Sync are the following controls
for setting the output condition when there is a loss of input signal:
• Auto Blue – when Auto Blue is enabled on a channel, the output will
automatically freeze to a blue screen when the input signal is lost on the
input.
• Auto Freeze – when Auto Freeze is enabled on a channel, the output
will automatically freeze on the last valid field when the input signal is
lost on the input.
• A Manual freeze can be performed at any time with the following two
choices:
• Frame
• Field
Note A field freeze provides less resolution and no motion artifacts in the output.
In frame mode, the resolution is higher since both fields are present, but the
presentation of the two fields can cause motion artifacts.
Color Correction
Color correction controls are provided for making RGB gain, offset and
gamma correction adjustments. Each color channel can be adjusted sepa-
rately or a total gain or total gamma can be applied to all channels.
Gamma controls brighten and darken the gray intensity of the signal.
Raising the gamma above 1.0, brightens the gray intensity. Lowering the
gamma below 1.0, darkens the gray intensity.