dortmans

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

dortmans

#include <tf/tf.h>
#include <nav_msgs/Odometry.h>
#include <geometry_msgs/Pose2D.h>

ros::Publisher pub_pose_;

void odometryCallback_(const nav_msgs::Odometry::ConstPtr msg) {
    geometry_msgs::Pose2D pose2d;
    pose2d.x = msg->pose.pose.position.x;
    pose2d.y = msg->pose.pose.position.y;

dortmans

#!/usr/bin/env python
# -*- coding: utf-8 -*-

# Copyright 2016 Massachusetts Institute of Technology

"""Publish a video as ROS messages.
"""

import argparse

dortmans

import dlib
import cv2

detector = dlib.simple_object_detector("detector.svm")

cap = cv2.VideoCapture(0)

while(True):
    # Capture frame-by-frame
    ret, frame = cap.read()

dortmans

#!/usr/bin/env python

import rospy
from geometry_msgs.msg import Twist

def callback(message):
    rospy.loginfo("message: (%2.2f %2.2f)", message.linear.x, message.angular.z)

def listener():
    rospy.init_node('twist_example')

dortmans

#!/usr/bin/env python

import math
from math import sin, cos, pi

import rospy
import tf
from nav_msgs.msg import Odometry
from geometry_msgs.msg import Point, Pose, Quaternion, Twist, Vector3

dortmans

#!/usr/bin/env python

import rospy
from sensor_msgs.msg import LaserScan

rospy.init_node('laser_scan_publisher')

scan_pub = rospy.Publisher('scan', LaserScan, queue_size=50)

num_readings = 100