Rgb-spectrum Quadra User's Guide Manuel d'utilisateur télécharger pdf (Page 46)

OPERATIONS

Cropping an Image

350-7951 Quadra User’s Guide 38

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CROPPING AN IMAGE

This section provides basic instructions for using the WSR command

(WindowSourceRectangle

). The command enables you to define a precise

portion of an input source, which is then mapped to the output using the WDR

command (WindowDestinationRectangle

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 WindowSourceRectangle

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 <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>

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.

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Rgb-spectrum Quadra User's Guide Manuel d'utilisateur Page 46