UM_NBASE-T_C
OLOUR
REV.E
09/2018
P
A G E
|
8
2.2.1
4k pixels 5x5µm (Full Definition)
This color mode (5µm) requires the indication of “Forward/Reverse” to the camera in order to manage the
delay between the two colored lines.
2.2.2
2k, 1k or 512 pixels 10x10µm (True Color)
These color modes don’t require any Reverse/Forward indication if no interpolation is used (or only the
”column interpolation”)
Column Interpolation Correction
This interpolation is used to compensate the colour error in the Red or the Blue in case of a
vertical transition on the web : The Red of the blue value of each coloured pixel is corrected
if the variation between two neighbour green pixels is significant.
B
1
’ =
α
B
x B
1
and
α
B
is the blue correction, calculated with the variation (G
1
–G
2
)
R
2
’ =
α
R
x R
2
and
α
R
is the red correction, calculated with the variation (G
1
–G
2
)
This interpolation is available only for pixel size 10x10µm (True Colour only)
It can be disabled by the customer. By default, it is enabled.
Line Interpolation Correction
This interpolation is used to compensate the colour error in the Red
or the Blue in case of a horizontal transition on the web in the same
“True Colour” pixel : A line is memorized and the Red of the blue
value of each coloured pixel is corrected if the variation between
two consecutive green values (previous to next line) is significant :
B
1
’ =
α
B
x B
1
and
α
B
is the blue correction, calculated with the
variation (G
1
–G’
1
)
R
2
’ =
α
R
x R
2
and
α
R
is the red correction, calculated with the
variation (G
2
–G’
2
)
G
1
G
2
B
1
R
2
Vertical
G
1
G
2
B
1
R
2
G’
1
G’
2
B’
1
R’
2
Two consecutive
Lines
Horizontal
Previous
delay
5µm
5µm
G
1
G
2
G
3
G
4
B
1
R
2
B
3
R
4
Web
direction
R
2
G
1
B
1
R
2
G
2
B
1+
B
3
2
R
2+
R
4
2
G
3
B
3
R
4
G
4
B
3+
B
5
2
10µm
10µm
G
1
G
2
G
3
G
4
B
1
R
2
B
3
R
4
Web
direction
R
2
(G
1
+ G
2
)/2
B
1
R
4
(G
3
+ G
4
)/2
B
3
No interpolation
