Background mask: This masks out a part of the background, which will result in the key fill appearing.
Masked area (box)
Key mask | Background mask |
Main mask and subsidiary (“sub”) mask
Each keyer allows two masks to be used simultaneously, and these are referred to as the main mask and the sub mask. The signal that determines the mask shape and size is termed the mask source, and different sources are used for the main mask and sub mask.
Main mask: This uses the signal from the dedicated box generator provided on each keyer, or the signal from the dedicated pattern generator as the mask source.
When the box generator is selected, a rectangular mask is formed. You can adjust the positions of the four sides of the box separately.
When the pattern generator is selected, you can select the pattern and apply modifiers.
Sub mask: This uses the wipe generator signal or the signal selected on the utility 1 bus, as the mask source.
When the wipe generator is selected, the patterns and the pattern modifiers are the same as in a wipe transition.
Key Memory
The key memory function allows the keyer settings on each
There are two modes for key memory: simple mode and full mode. The parameters stored in each mode are as follows.
Simple mode: key type, clean mode (including the plane setting for chroma keying), key position, key inversion, and adjustment values for the particular key type (Clip, Gain, Density, Filter, etc. This includes color vector key, wipe pattern key, key wipe pattern key, and chroma key. However, in the case of a chroma key, it excludes color cancel, Y balance, foreground CCR, window, and shadow.)
56 Keys