Adjusting The Chroma Key Image - Sony DVS-7300 User Manual

Adjusting the Chroma Key Image

There are two ways of adjusting the output from chroma keying:
automatically, using the auto chroma key function, or manually, making
individual adjustments from the menu.
In general the most effective and time-efficient method is to use the auto
chroma key function for the initial adjustment, and then only if further
adjustment is still required, use the manual facilities.
The following procedures are the same in both D1 and D2 systems.
Using the auto chroma key function
The auto chroma key function automatically derives the color to be used for
chroma keying from a sample area of the foreground signal identified by the
operator. Use the following procedure.
1
In the CHROMA KEY menu, select item 2 (ADJUST).
The ADJUST menu appears.
AUTO CHR KEY
SAMPLE
MARK
F1
2
Press F1 (SAMPLE MARK), turning it on.
This displays just the foreground signal, and a white frame marking the
sample area. If you are applying color cancel (see page 5-9), video
adjustment (see page 5-12), or chroma key masking (see page 5-13),
these processes will be temporarily suspended while the auto chroma key
function is in effect, and restored afterwards.
AUTO KEY
COLOR
START ACTIVE
CANCEL
OFF OFF
F2 F3 F4
Function key indications in the ADJUST menu
KEY
WINDOW POS
OFF OFF
F5 F6 F7 F8
Chapter 5 Chroma Keying
F9 F10
(Continued)
5-7