Phytec phyCAM User Manual

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8 Configuration of camera features
8.1 Configuration with v4l2-ctl
To set the various camera functions (e.g. exposure, gain, ...) use please the v4l2-ctl functions. You can get an overview of the existing functions by entering the
commands:
- for example: v4l2-ctl -d /dev/video0 –all (list all)
- for example: v4l2-ctl -d /dev/video0 -L (list all detail)
With this control are many features usable. For example exposure. Set one exposure value (if the automatic disable):
- v4l2-ctl -d /dev/video0 --set-ctrl=auto_exposure=1 (set AR0144 AEC off)
- v4l2-ctl -d /dev/video0 --set-ctrl=exposure=800 (set the exposure time for a time, that the sensor need to generate 800 rows)
8.2 Configuration camera register direct
To set or get a camera register direct use the i2c functions in the path …/gstreamer-examples/tools/...
Note: Use this function only, if you know the register reaction. Read the register reference manual of the camera sensor manufacturer.
9 De-Bayering (demosaicking) with NEON CoProcessor
Most of CMOS color chips provide the image in the bayer mosaicing (bayer raw) format. For get a color image in RGB format is it necessary to convert the bayer raw
image.
- https://en.wikipedia.org/wiki/Bayer_filter
- https://de.wikipedia.org/wiki/Bayer-Sensor
There are exist different algorithm for converting.

Phytec phyCAM Specifications

General

Brand	Phytec
Model	phyCAM
Category	Control Unit
Language	English