RGB Spectrum Quadra Manual Do Utilizador
O P E R A T I O N S
Cropping an Image
350-7951
Quadra User’s Guide
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C R O P P I N G A N I M A G E
This section provides basic instructions for using the WSR command
(
(
). The command enables you to define a precise
portion of an input source, which is then mapped to the output using the WDR
command (
command (
).
Please note:
•
By default,
WSR
shows the entire source image as defined by the
horizontal and vertical dimensions of the selected RGB input.
•
For a video input,
WSR
defaults to 720 x 480 for NTSC and 720 x 574
for PAL.
Using the command, you can “jump” a source image’s size and position from
one setting to another instantly, or transition the image between settings with a
duration of up to 128 seconds.
one setting to another instantly, or transition the image between settings with a
duration of up to 128 seconds.
Use the following steps to crop a source image.
1.
Request help text for the
command. Type:
H WSR
Enter
Figure 3-11.
Help Text — Window Source Rectangle Command
2.
Query the input timing to verify the actual dimensions of the source.
This gives you a basis for further scaling. Type:
This gives you a basis for further scaling. Type:
INTM <input #>
Enter
3.
Query the current size and position of the image: Type:
WSR <input #>
Enter
4.
If desired, reset the source image to its default full screen value. Type:
RSR <input #>
Enter
5.
Scale and position the image as desired. Type:
WSR <input #> <x> <y> <width> <height>
<duration>
Enter
Note that the
x
and
y
parameters define the coordinates of the first
pixel located at the top left of the image. The width and height
parameters then define the size of the image.
parameters then define the size of the image.