Osprey 800e Series User Guide
Osprey Video
24
the response curves of computer monitors. Therefore, a correction inverse to the original bias is
often needed, and you may want to adjust the gamma for the characteristics of a particular monitor.
Note: When gamma correction is disabled, either by setting the Gamma to Neutral or by setting the Gamma correction value
to exactly 100, the software-based Gamma filter works in passthrough mode with no effect on the video and without
using processing bandwidth.
When Gamma correction is enabled, the factor applied is as shown in the slider text box and in the graphic. If you are
running preview video while adjusting the filter, you will see the effects of your adjustments as you make the
adjustments.
The Video Proc Amp tab also has the following controls.
Pin Type
The drop-down list has three choices. See
Capture and preview pins
for
information on how this selection works.
Gamma
correction
controls
The slider controls are used to set Gamma, Brightness, Contrast, Hue, and
Saturation. (The Hue slider is disabled when PAL is selected.) All slider values
are applied real time. For example, if Preview or real-time capture-to-screen
video is running when you access the Preview tab, you can see adjustments as
you make changes.
Individual
Restore
buttons return the respective slider to the settings as set
when the dialog box is opened. An adjustment scale is also included to identify
each slider’s relative position.
Note: If you change the video standard or video input you will not see any changes in the
slider controls until the driver properties dialog is closed and re-opened.
Reset Values
Click this button to reset all slide controls simultaneously to the state they were
in when the dialog box was opened.
Neutral
Click this button to reset all slide controls simultaneously to the original factory
default settings. These defaults are considered neutral, that is, the controls are
set to positions that pass through the incoming video without modification.
Start Preview
Click to view the gamma settings in real time. You can see adjustments as you
make changes.
Stop Preview
Stops the preview.
Vector Scope
Click this button to view the vector scope.
Luma Scope
Click this button to view the luma scope.
