First of all install update and upgrade your system:
$ sudo apt update
$ sudo apt upgradeThen, install required libraries:
| from __future__ import print_function | |
| import picamera | |
| from picamera import mmal, mmalobj, exc | |
| from picamera.mmalobj import to_rational | |
| import time | |
| MMAL_PARAMETER_ANALOG_GAIN = mmal.MMAL_PARAMETER_GROUP_CAMERA + 0x59 | |
| MMAL_PARAMETER_DIGITAL_GAIN = mmal.MMAL_PARAMETER_GROUP_CAMERA + 0x5A |