EVS EPSIO LIVE, Руководство пользователя, Страница: 48 / 76

EVS Broadcast Equipment SA Issue 1.70.A February 2014
40 Configuration
2.4.3 Chroma Key Parameters
You can create and manage up to four chroma key definitions from the LSM Remote
Panel, or in Epsio, using the chroma key profiles.
The various chroma key parameters allow you to define or refine a chroma key profile.
The representation of the chroma key definition in a color space will help you visualize the
range of colors taken into account in the chroma key definition.
Representation of the Chroma Key in Epsio
A YUV color space is displayed on the CHROMA tab in Epsio to represent the color
range selected in the chroma key:
The chroma key definition is represented as follows on the color space:
•
The black box in the color space corresponds to the colors that are totally removed
on the chroma key layer (black).
•
The colors between the black and white boxes in the color space correspond to the
transition color range, in other words to the colors that will be more or less removed
on the chroma key layer. The white box is clearly displayed in Epsio.
•
The colors outside the white box in the color space correspond to the colors that are
not removed on the chroma key layer (white).
Representation of the Chroma Key on the Monitor
A YUV color space is displayed on the top left corner of the monitor to represent the color
range selected in the chroma key. It contains additional scales, with ‘sliders’ to reflect the
hue, saturation and black level (or brightness) of the selected color range. The grey box
displayed on the color space represents the selected color range.