MCP-601 Operator’s Manual
Magni Systems, Inc.
40
Keying Operation and timing setup --- Magni Premier Key Tab
Figure 5-2, Magni Premier software Key tab screen
•
Key Edge Filter;
Hard Key mode provides a sharp transition between graphics and video
Soft Key mode lengthens the transition time thus reducing motion artifacts in some cases.
•
Key Width;
Wide Key width reduces halo of selected color on horizontal edges
Narrow Key Width allows single line graphics to be keyed.
•
Key Type.
Graphics mixed with video in following forms:
(Buttons and number entry areas will gray
out when not applicable)
Color Black
: Key on graphics RGB component value set at 0 level.
Standard
: 100% Video on selected Graphics Key Color and mix on all other colors.
Transparent
(plus Standard Key): This mode includes Standard Key as above plus one
Transparent Key color where the two signals mixed at 50% transparancy.
Graphics
: 100% graphics on selected Graphics Key Color and mix on all other graphics colors.
Video
: Key to mix on selected Video Key Color. It is the traditional Chroma Key.
Alpha
: One Alpha Key Full Field Keying signal storable from Graphics or Video input.
•
Key Range. The key range that determine the tolerances of color hue or video levels of the key
signal that will trigger the key transition, it typically set at 25.
•
Key Color. There are 3 ways to select a key color: