Pixel Sub-Sampling - Microscan MINI Hawk User Manual

Pixel Sub-Sampling

Pixel Sub-Sampling shows an entire captured image by averaging signals
Definition:
from adjacent pixels.
<K542,pixel
Usage:
Default: Disabled
Options: 0 = Disabled
1 = 4:1
2 = 16:1
4:1
At 4:1, 4 pixel signals from 2 adjacent rows and columns are combined so that only 1 pixel
is output for every 4 pixels sampled. An image with the dimensions 640 x 480 is scaled to
320 x 240.
Since the resolution of the output image is reduced, the frame rate will increase, but not by
the factor of the image reduction. This is due to the overhead time of digital pixel data
processing and minimum row time requirements of the image sensor.
16:1
At 16:1, 16 pixel signals from 4 adjacent rows and columns are combined so that only 1
pixel is output for every 16 pixels sampled. An image with the dimensions 640 x 480 will be
scaled to 160 x 120.
Since the resolution of the output image is reduced, the frame rate will increase, but not by
the factor of the image reduction. This is due to the overhead time of digital pixel data
processing and minimum row time requirements of the image sensor.
MINI Hawk High Performance Imager User's Manual
sub-sampling,AEC/AGC mode,AEC/AGC brightness>
Camera and IP Setup
10-15