Grass Valley DD10 part 1 User Manual

Page 59

2.8 Operation of the keyer menus

Diamond digital DD10

After an chroma key automatic run, first both sets are identical with the unmasked
set LEFT, RGHT and Y. Later deviations can be undone with MATCH.

Note:

Masks from the mask store will be lost when switching off the mixer!

SEL MSK

switches the maskability of the selectivity ON or OFF

MATCH

draws the two selectivity sets xxx O and xxx I on the unmasked set
LEFT, RIGHT and Y.

Selectivity Y
separates in similar way colors which should not be changed from those which
have to be deprived by their key color. Influencing parameter in this case is however
the luminance.

Purpose:

To deprive also the achromatic (light saturated) colors by their key
color portion.

Example:

Yellow hair in front of a blue wall effects gray helos. With Selectivity
Y > 50%, the gray helos are increasingly deprived by blue with
increasing luminance: they become yellow.
After every AKA, selectivityY is set by default to 50% (ineffective).

COLOR CANCEL desaturates all colors of the fill signal which lie within a narrow
angle range around the key color in the color circle. COL C is switched on by default
after each automatic run (not S–Auto).
While pressing the KeyColor key, the ColorCancel effect is temporarily cancelled
so that the adjustability of HUE and CHROMA is improved.

You will find further information in the corresponding sections of the Keyers panels.

COL C