Execute Image Programs 20210407 Notes and Logs

imageCheat20210407.txt

April 4, 2021

source ~/image_ws/install/setup.bash
   in each terminal

TERMINAL 1

ros2 run image_publisher image_publisher_node /dev/video0

TERMINAL 2

ros2 topic list

ros2 run image_view image_view image:=image_raw

TERMINAL 3

ros2 run image_tools showimage image:=image_raw

TERMINAL 4


ros2 topic echo image_raw
---
header:
  stamp:
    sec: 1617818511
    nanosec: 782709125
  frame_id: camera
height: 480
width: 640
encoding: bgr8
is_bigendian: 0
step: 1920
data:
- 82
- 85
- 82
-
'...'
---

see the encoding field