Cropping an image – RGB Spectrum Quadra User's Guide User Manual
Page 46
O P E R A T I O N S
Cropping an Image
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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 (
).
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.
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:
INTM
Enter
3.
Query the current size and position of the image: Type:
WSR
Enter
4.
If desired, reset the source image to its default full screen value. Type:
RSR
Enter
5.
Scale and position the image as desired. Type:
WSR
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.