HD9690 Series HDTV Graticule Generator Manual
FRONT PANEL
OPERATION
Revision 1.5
Page 3-17
3.5.2.3.
Controlling the Opacity (Transparency) of the Mask
Opacity:
100%
75%
50%
25%
This item is used to control the opacity (transparency) of the
mask
object
Select
100%
to have a solid (100% opaque)
mask. The mask
will completely cover the picture in the
colour set by the
Colour
control.
Select
75%
to have a 75% opaque (25% transparent)
mask
.
The mask
will be keyed with a mix ratio of
75%
mask
and 25% picture.
Select
50%
to have a 50% opaque (50% transparent)
mask
.
The mask
will be keyed with a mix ratio of
50%
mask
and 50% picture.
Select
25%
to have a 25% opaque (75% transparent)
mask
.
The mask
will be keyed with a mix ratio of
25%
mask
and 75% picture.
3.5.3. Controlling the Mask Attributes
When the
mask
object is selected the
CTRL SEL
button is used to select which of its attributes (colour,
position, size, or individual edges of the object) will be adjusted by turning the shaft encoder knobs. Press
the
CTRL SEL
button until the desired
CTRL SEL
item is shown on the front panel. When you have
chosen the desired
CTRL SEL
item press the
MASK
button again or turn one of the shaft encoder knobs
to begin controlling the selected attribute of the
mask
. The selected attribute for control will show on the
ctrl
line of the OSD.
The items that are shown in the
mask
CTRL SEL
menu depend on the
MODE
settings and the settings in
the
SETUP
menu. In the sections describing the
CTRL SEL
items, the relevant settings from the
mask
MODE
and
SETUP
menus are shown where necessary.
3.5.3.1.
Controlling the Mask Colour
Colour
The colour of the
mask
object can be adjusted in the range of “0” through “14”, in single digit
increments, using either shaft encoder. The colours that will be displayed for each value are
shown in Table 3-2.
3.5.3.2.
Controlling the Mask Size (Mask Centred, Aspect Ratio Off)
Setup menu
Force centre
no
or
Setup menu
Force centre
yes
Mode menu
Aspect ratio
off
Mode menu
Aspect ratio
off
Mode menu
Centre
H + V
Size
When the
mask
is centred and aspect ratio
MODE
is Off, the left shaft encoder is used to
adjust the height and the right shaft encoder is used to adjust the width of the
mask
about the
centre of the raster.