
GUIDE TO INSTALLATION AND OPERATION
XVP-1801 |
25
Output Format 16:9
(always on the HD Video Output panel; when selected on the SD Video Output panel)
Input
Format
(selected by AFD Mode pulldown)
4:3
16:9
Presets
Output after ARC processing
Figure 3.9b
Available Presets for various AFD Mode selections (16:9 output)
The advantage of using Presets is to provide a unique conversion without having to specify the H&V scaling
factor or the percentage of cropping/side panels and anamorphism. When an ARC Preset is selected, it re-
centers the output picture in case of side panels or letterbox, but it does not affect the output masks.
Masks sub-section
Mask: Horizontal and Vertical
Sometimes with aspect ratio conversion, some of the edges of the original image are exposed in the output
signal. Often, there will be artifacts in the source along these edges, extending for several lines vertically or
several pixels horizontally after conversions. Masks are adjustable “curtains” which can be used to frame the
output image, covering up the edge artifacts and leaving a clean transition from image to mask.
The Masks tab presents four controls to set mask position on the four sides of the output image. Top and
bottom position are set in lines, while left and right position are set in pixels. Scroll boxes with data windows
for reporting and direct data entry are used.
Masks should be adjusted by viewing the output on a video monitor and positioning the masks to cover edge
effects with a minimum loss of clean picture content. Usually masks are the final adjustment to be made. The