MacroSystem Akaba – New Concept - Manual (Page 26)

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After confirming by clicking on Ok, select the
filled polygon so that you only see your video
frame. The region that is not to be edited must
be covered with a mask.
Move the cursor, for example, to the upper-left
corner and confirm the position. Now you can
draw lines to close in the desired area to be
masked. Enclose in this way the portion of the
video frame that corresponds to the sky.
You should confirm the last line only when
the cursor form has changed indicating that
you are at the start point of the polygon. This
guarantees that you have drawn a closed
polygon.
Closing the polygon brings you back to the mask
operating panel and you see that the polygon
has been filled
ed.
Next, click on the right trackball key or on the
symbol in the lower-right corner of the operating
panel to get to the operating panel for Gamma.
There the mask is not visible. It operates only in
the background.
Make sure that the button next to the mask
symbol displays a checkmark. If not, then you
must click the button to turn the dash into a
checkmark. Only in this way is it certain that
the mask will take effect. Finally, click on the
following symbol:
After the slider bars have appeared, that
(assuming you have not already made any other
settings in this menu) all display a value of
100%, move the slider bar for brightness to the
right, for example to the value 130%. You will
see that the video image becomes brighter and
that only the previously enclosed sky remains
unchanged.
If you still want to make changes, you can still
make corrections. For example, you can enclose
the sky more precisely.
If there are still portions of the sky not enclosed
by the mask, then you should increase the size
of the mask.
Enter mask mode again and with the Pencils &
Brushes button select a small pencil with a light
smudge and confirm your selection by clicking
on Ok. Now you can select the line tool so that
you can put the cursor at the desired position to
enlarge the mask by clicking on the left trackball
key. Roll the trackball until the corresponding
area is covered and confirm by clicking again on
the left trackball key. Finally, click on the right
trackball key in the mask operating panel to
change to mode Gamma where you can observe
the new result.
If too much sky area is covered by the mask
(a tree, for example), then you can correct this
later. Simply click on the mask button, select