Barco ImagePRO-II, User Manual

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36 ImagePRO-II • User’s Guide
4. Menu Orientation
Configuring Inputs
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1:1 Sample
sets the sampling mode for the selected input. This option is either
On
or
Off
.
You can turn this option
Off
only for RGB and YP
b
P
r
analog
inputs. For all other input
types, the sampling clock is inherently 1:1.
Image
sampling
occurs when an analog image is digitized, changing the analog signals
(Red, Green, and Blue, for example) into pixels stored in the ImagePRO-II’s image
memory. Using 1:1 sampling
,
the ImagePRO-II samples the analog video at exactly the
same rate as that of the original signal.
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The input
Aspect Ratio Submenu
, shown in the following illustration, provides one way to
affect aspect ratio. The ImagePRO-II selects and displays the input video aspect ratio
according to the selected input format.
Figure 4-3.
The Aspect Ratio Submenu
The settings on this menu can be overridden by the input horizontal and vertical
Zoom
settings. If you override the settings, this menu may not display the input’s actual aspect
ratio.
To select the
Aspect Ratio Submenu
from the
Input Menu
, scroll to
Aspect Ratio
and
press
SEL
. Then scroll to one of the following options:
•
Set Mode
— The
Set Mode
value is one of the following:
1:1
,
3:2
,
5:4
,
16:9
, or
Custom
. The ImagePRO-II detects the input format, and displays the appropriate
aspect ratio.

Example:
Computer video at 1280x1024 @ 60 Hz defaults to
5:4
.

Example:
NTSC video defaults to
4:3
.

Example:
HDTV1080i video defaults to
16:9
.
•
Ratio
— This option is available only when
Set Mode
is set to
Custom
. It is a
decimal number ranging from
0.750
to
3.000
.
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The
Sizing Adjust Submenu
lets you:
• Scale the selected input video up (or down) within the current active area.
• Mask (crop) an image, either one edge at a time, or by using preset masks of all
four edges to achieve a specific aspect ratio.
As you adjust sizing, the top and bottom portions of an image may fall outside of the raster,
for example, when a 4:3 image is scaled up to 16:9.
INPUT ASPECT RATIO
Set Mode
5:4
Ratio n/a