Adjust the image on the display
(a) Fine tune:
You can arbitrary move the image on each screen in four directions through the button, every move is one pixel
per row or column.
(b) Masking:
You can block a pixel per row or column from the edge in four directions through the button, and the image will
be auto‐scaling to fulfill the screen.
Monitor the effect on the display
This area will demonstrate the resulting selection of the input video to be display for the selected output channel.
The bottom part of this area, user can check each portion from the original input that response to each display.
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