Datavideo HS-1300 Instruction Manual page 100

Chroma
6. Select the camera image to be chromakeyed in the "Key Source" sub-option. In this example, the
source is "Input 1," which is Channel 1.
7. Adjust the left, right, top and bottom values of the "Mask" sub-option to set the chroma key range,
which is the green backdrop size.
8. Adjust the following parameters under "CK Setup."
 Key Range defines a color range close to the color (green) of the studio backdrop.
 Key Foreground adjusts the opaqueness and transparency.
 Key Background adjusts the chromakey performance to attain perfect chromakeying.
 Hi-Light and Lo-Light adjust luma value of the chroma key.
 Bg-Supp removes foreground and background luma (brightness) from the final image.
9. Chroma Key setting is complete.
10. Repeat steps 1 – 9 to configure Key 2, which is the image captured by camera 2.
11. After dual chromakey is configured, enable Channel 3 on the Program BUS and Channel 4 on the
Preset BUS.
12. Press Key 1 PGM and Key 2 PVW buttons to enable views of Camera 1 and Camera 2 on Program and
Preview display respectively. To trigger transition, simply move the T-bar manually or press the AUTO
button.
Keyer
Key Source
CK Setup CK Auto
KRange
Hi-Light
Mask Left
Top
Key 1
Input 1
Hue
170 K Fgnd
0% Lo-Light
0% Right
0% Bot
100
120 Luma 100%
15% K Bgnd 67%
0% Bg-Supp
0%
0%
On