Number Description Number Description
4 Image Capture Vertical Position 11 Adjustment bar
5 Contrast 12 Video Test Pattern
6 Brightness 13 Performance Monitor
7 Block Noise Threshold 14 Close button
2. Click the icon corresponding to the feature you wish to adjust.
3. Move the Contrast slider bar and then fine-tune the setting by clicking the Min (-) or Max
(+) buttons to adjust the parameter for each icon pressed. The adjustments display
immediately in the Video Viewer window.
4. When finished, click Close to exit the Manual Video Adjust dialog box.
Target video settings
The Image Capture Width, Pixel Sampling/Fine Adjust, Image Capture Horizontal Position and
Image Capture Vertical Position adjustments affect how the target video is captured and
digitized and are seldom changed.
The image capture parameters are automatically changed by the Automatic Adjustment
function. A special image is required on the target in order to make accurate adjustments
independently.
Contrast and brightness
If the image in the Video Viewer window is too dark or too light, select Tools - Automatic
Video Adjust or click the Automatic Video Adjust button. This command is also available in the
Video Adjustments dialog box. In most cases, this corrects video issues.
When clicking Auto Adjust several times does not set the contrast and brightness as desired,
adjusting the contrast and brightness manually can help. Increase the brightness. Do not go
more than 10 increments before moving the contrast. Generally, the contrast should be moved
very little.
Detection thresholds
In some cases, noise in the video transmission keeps the packets/sec count up, which is
indicated by little dots changing in the area of the cursor when it is moved. Varying the
threshold values may result in “quieter” screens and can improve cursor tracking.
76 DSR® Switch Installer/User Guide
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