RRMoelker

# python3
# based on https://raspberrypi.stackexchange.com/questions/58871/pi-camera-v2-fast-full-sensor-capture-mode-with-downsampling/58941#58941
import time
import picamera
import numpy as np
from PIL import Image

RECORD_TIME = 5  # number of seconds to record

WRITE_IMAGES = False

jwhendy

import cv2
import subprocess

### for reference, the output of v4l2-ctl -d /dev/video1 -l (helpful for min/max/defaults)
#                     brightness (int)    : min=0 max=255 step=1 default=128 value=128
#                       contrast (int)    : min=0 max=255 step=1 default=128 value=128
#                     saturation (int)    : min=0 max=255 step=1 default=128 value=128
# white_balance_temperature_auto (bool)   : default=1 value=1
#                           gain (int)    : min=0 max=255 step=1 default=0 value=0
#           power_line_frequency (menu)   : min=0 max=2 default=2 value=2

CarlosGS

# Fast reading from the raspberry camera with Python, Numpy, and OpenCV
# Allows to process grayscale video up to 124 FPS (tested in Raspberry Zero Wifi with V2.1 camera)
#
# Made by @CarlosGS in May 2017
# Club de Robotica - Universidad Autonoma de Madrid
# http://crm.ii.uam.es/
# License: Public Domain, attribution appreciated

import cv2
import numpy as np