U
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ANUAL
16
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C
OLOR
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09/2016
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11
2.2.6
Column Interpolation Correction (True Color only)
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 Color only)
It can be disabled by the customer. By default, it is enabled.
2.2.7
Line Interpolation Correction (True Color Single only)
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 Color” 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
)
This interpolation is available only for pixel size 10x10µm (True Color Single only)
It can be enabled by the customer. By default, it is disabled
This interpolation requires the Forward/Reverse indication sent to the camera for the memorized line.
The Line Interpolation
has to be disabled
if the light is changing for each Line (typically for
pulsed Light source with different spectrum) or for any reason the Green component of
the light source changes significantly from one line to the next one.
2.2.8
Effects of the interpolations
Horizontal transition effect reduced by the “Line Interpolation”
Vertical transition effect reduced by the “Column Interpolation”
Magenta color ghosting
Green color ghosting
Red color
ghosting
Blue
color
ghosting
After both
column and Line
Interpolations
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
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