User guide

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Defining your Capture settings
vectorscope. By analyzing color bars from your source video on the
vectorscope, you can make adjustments as needed to calibrate your video.
For details on how to calibrate your video, see the next section, “Calibrating
your incoming video using color bars.”
•
YC Waveform Shows a representation of the combined luminance (Y)
and chrominance (C) of your video.
•
Y Waveform Shows only the luminance (Y) values of your video, with the
chrominance removed (as if your clip was in black and white).
•
RGB Parade Shows the red, green, and blue components of your video in
three side-by-side columns.
Calibrating your incoming video using color bars
Video professionals use color bars on their tapes to ensure that video clips are
calibrated for correct color and brightness. Adjustments can be made based on
the results of analyzing the color bars from your source video on the vectorscope
and Y waveform.
1 From the Matrox Proc Amp Settings dialog box, click the Scopes button.
2 Play the section of your tape containing color bars.
3 On the Image View page, select Analyze a line. Select a line in your color
bar pattern that includes only the colored bars representing red, green, blue,
magenta, cyan, and yellow.
4 Double-click the Scope View tab to display the Matrox scopes in a separate
window. From the
Scope View Settings menu, choose Vectorscope.
5 Choose the appropriate color bar pattern from the Vectorscope Settings
menu (click the button on the left side of the vectorscope):
¡Important Make sure you choose the type of color bars that matches the
color bars you’re analyzing from your source video.
6 Check if the dots representing the colors in your color bar pattern appear
within their respective targets on the vectorscope display. These targets are
where the dots should appear if the color is correctly calibrated (that is, the
saturation and phase relationships are correct). If needed, you can adjust the
proc amp controls to get the dots as close as possible to the target boxes. Use
the
Hue control to rotate the dots around the circular graph, and use the