Sub-sampling (only guppy f-503b/c), What is sub-sampling, Which guppy models have sub-sampling – ALLIED Vision Technologies Guppy F-503 User Manual
Page 145: Description of sub-sampling
Description of the data path
GUPPY Technical Manual V7.1.0
145
Sub-sampling (only Guppy F-503B/C)
What is sub-sampling?
Definition
Sub-sampling is the process of skipping neighboring pixels (with the same
color) while being read out from the CMOS chip.
Which Guppy models have sub-sampling?
All Guppy F-503 models, both color and b/w, have this feature.
Description of sub-sampling
Sub-sampling is used primarily for the following reason:
•
A reduction in the number of pixels and thus the amount of data while
retaining the original image area angle and image brightness
Similar to binning mode the cameras support horizontal, vertical and h+v
sub-sampling mode.
Format_7 Mode_4
By default and without further remapping use Format_7 Mode_4 for
•
b/w cameras:
2 out of 4 horizontal sub-sampling
•
color cameras: 2 out of 4 horizontal sub-sampling
The different sub-sampling patterns are shown below.
Figure 80: Horizontal sub-sampling 2 out of 4 (b/w)
Figure 81: Horizontal sub-sampling 2 out of 8 (b/w)
2 out of 4
2 out of 8