Sony DVS-7300, User Manual

Page: 267 / 606

Chapter 5 Chroma Keying
5-7
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.
F1 F2 F3 F4 F5 F6 F7 F8 F9 F10
WINDOW
OFF
COLOR
CANCEL
OFF
KEY
ACTIVE
OFF
AUTO
START
SAMPLE
MARK
KEY
POS
OFF
AUTO CHR KEY
Function key indications in the ADJUST menu
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.
(Continued)