CHEETAH Hardware User’s Manual
Imperx, Inc.
Rev. 6.2
6421 Congress Ave.
7/7/2015
Boca Raton, FL 33487
+1 (561) 989-0006
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contiguous area (pixels r pixels skipped) (M). The sub-sampling decimation
factors (N and M) are applied along both rows and columns as shown in the figures
2.4a and 2.4b. The camera will adjust AOI size depending on subsampling factor,
averaging factor and the presence of a color filter array on the image sensor.
Subsampling constraints
The N (# contiguous pixels readout) and M (# pixels of the area which includes
pixels readout and pixels skipped) parameters are restricted to even values
must always be greater than N and maximum value of M is 32.
Figure 2.4a: Monochrome sub-sampling example with N = 2 and M = 6.
Figure 2.4b Color sub-sampling with N=2 and M=4.
