ALLIED Vision Technologies Stingray F-504 - Manual (Page 160)

Description of the data path
STINGRAY Technical Manual V4.4.4
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Figure 85: 2 out of 4 H+V sub-sampling (color)
Figure 86: 2 out of 8 H+V sub-sampling (color)
Note

Changing sub-sampling modes involves the generation of
new shading reference images due to a change in the
image size.
2 out of 4 H+V sub-sampling
2 out of 8 H+V sub-sampling (only F-145, F-146, F-201)