Operation Manual

Chapter 8: Flash Options and Settings
52 ViewCast
Tab
Description
IMPORTANT! When Niagara SCX and SCX Explorer reside on different
computers, always start your browse search for files at My Network
Places. Then work down or enter the entire file pathname beginning
with the system name (such as \\fileserver\c\videos).
If you simply enter a file name, you may inadvertently browse your local
computer when the media file resides on the remote computer.
Video Settings
Control the capture properties for the selected video device:
 The Input field lists all input connectors available for the capture
device.
 The Signal field lists the various video standards the capture device
supports.
 You can adjust capture properties such as proportion, video size, and
width/height using the provided fields.
 Adjust additional capture properties of brightness, contrast, saturation,
and hue individually for each input source using the sliding bars.
 When making such adjustments, verify your adjustments apply to the
selected input.
 Otherwise, your adjustments apply to all the input sources listed.
 These capture properties remain available regardless of whether the
encoder starts or remains idle (Figure 69).
Figure 69. Flash Video Settings
Gamma Corrections
 Adjust the gamma of the incoming video.
 Gamma refers to the response curve of video cameras/CRTs.
 When you capture video with a camera, the camera response remains
deliberately nonlinear – it boosts low lumen values and compresses
high lumen values – based on two reasons:
(1) It increases the effective bandwidth in the low lumen range, where
you need it, at the expense of the high lumen range, where you need it
less.
(2) It matches the response characteristics of TV sets and monitors.
 The calibration specified in video standards matches the requirements