Polycom MGC Administrator Administrator's Manual page 492

Chapter 8 - Audio and Video Conversion Tools
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3. Clear the Maintain Aspect Ratio check box.
4. In the Pixel Size box, change the size of the image; in the Width box,
enter a maximum of 352 pixels and in the Height box enter a maximum
of 288 pixels.
5. Click OK.
6. From the File menu, select Save As.
The Save As dialog box opens.
7. In the Save As Type box, select Raw (*.raw) from the drop-down list.
8. In the File Name box, enter the file name.
9. In the Save in box, select the directory where the saved file will be
stored.
10. Click the Options button to define the Raw format options.