User guide

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Chapter 4, Configuring Matrox Convert DVI
“Stand-alone mode” on page 46) applies square pixel compensation at the
source.
¦NoteThis option is available only when outputting an SD format (see
“Specifying your output settings” on page 29), and when the
Scale to fit
horizontally
or Scale to fit vertically scaling option is selected.
7 For Convert DVI Plus only, under Position, type X and Y values to position
the destination region of interest on the video output (0,0 places it at the
top-left corner of the video output), or select
Center to position it in the
center of the video output. You can also position it manually by moving the
mouse pointer anywhere within the destination region of interest until the
pointer becomes a hand icon, and then drag to the desired position.
8 For Convert DVI Plus only, under Background, choose the Color for the
video output background. This option can be useful if you want to chroma
key the background. Select
Allow Super White/Super Black to allow the
highest luminance level of your video output to exceed the standard
maximum white level, and the lowest luminance level of your video output
to fall below the standard black level. This option can be useful for luma
keying.
9 Select Live preview if you want the preview window to display a live
representation of the video output. This option is especially useful when
previewing a video output that contains a video clip. When this option is
disabled, the preview window will update only after a change is made to the
Convert DVI settings.
¦NoteConvert DVI leverages your system’s resources to perform the live
preview. Disable this option to free your system’s resources for other tasks,
such as when playing back high-resolution video clips.