Advanced Color Adjustments - Sigma Designs REALmagic NetStream 2000 User Manual

NetStream 2000 Manual 6.6.2000
Advanced ColorAdjustments
When you move the mouse or a window on top of the DVD or
MPEG video, the VGAgraphics need to appear on top of the video
window. To do this, the DVD/MPEG-2 Playback Card uses a well-
established method called chroma key. This method is similar to the
"blue-screen" effect often used in television. A special color is cho -
sen as the "chroma key" color, and video will only display where
the chroma key color appears. For practical reasons, the chroma key
color is usually a rarely used color that is very unlikely to be used
by other Windows programs.
The DVD/MPEG-2 Playback Card software defaults to a dark green
color as the chroma key color. You might prefer to use a different
color if the default color conflicts with one of your application pro-
grams. When there is a conflict, you will see MPEG video displayed
"through" an area of you application. There may also be instances
where the default color is not compatible with your VGAdisplay.
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Follow the steps below to set your own chroma key color if:
• You want to use a different chroma key color, or
• You are not able to view any MPEG video on your VGAscreen,
or
• If the VGAgraphics seems to "bleed through" the MPEG video
Note: If you are not able to view MPEG video at all, there are
several things you should try before changing the chroma key color:
make sure that the monitor is connected to the DVD/MPEG-2
Playback Card, powering off the computer and try again after
restarting, or double check the Border Adjust and Color Calibration
procedures.
1. Start DVD Station and play an MPEG video. Even if the video
is not visible, you should be able to hear the audio.
2. Click on the Options button, click on the Settings tab, and then
click the Configure button. Next, click the Advance>>> button
and select ColorAdjustment.
3. Select a key color from the Choose key color to set menu.
Appendix A. Advanced Configuration Options 35