38 • Camera Performance and Features Linea Lite GigE Series Camera
Example 3. Target running faster than example 1, same EXSYNC (trigger) frequency
When the target runs faster, it appears compressed since fewer lines are acquired to image the
target. Adjusting the Line Spatial Correction value can correct for the color artifacts that result
from this compression.
Figure 27: Line Spacial Correction – Target Too Fast
Color Interpolation
When the camera output Pixel Format is RGB8, the camera performs color interpolation to generate
the RGB values given the RG or BG pixels available at each horizontal pixel position. That is, the
missing red or blue pixel is generated from the adjacent pixel values (except at the sensor edge
where only one adjacent column of values is available).
Two Color Interpolation modes are available:
• Basic: The missing red or blue pixel information is generated using the neighboring red or
blue pixels (left and right / 2).
R = 120
R = 180
R = 150
Interpolated
Pixel
Figure 28: Basic Interpolation
• Enhanced: Missing red-and blue information is interpolated from green pixel variation in
addition to neighboring pixels. This removes color fringing artifacts caused by edges
occuring in interpolated pixels.
For example, to interpolate R at BG pixels:
R
n
= G
n
+ [(R
n-1
– G
n-1
) + (R
n+1
- G
n+1
)] / 2;
= (R
n-1
+ R
n+1
)/2 + G
n
- (G
n-1
+ G
n+1
)/2;
R = 120
R = 180
R = 130
Interpolated
Pixel
G = 180 G = 100G = 120
Figure 29: Enhanced Interpolation