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On this page
  • Verify your development environment
  • Download the source code
  • Build and install the app
  • App functionality
  • Inspect the output
  1. App development
  2. Resources
  3. Skynode Vision Kit S

Install and test a simple vision app

This example app uses the Vision Kit API to compute the average brightness of each frame captured by the camera.

PreviousSet up the Vision KitNextLegacy app workflow

Last updated 7 months ago

Verify your development environment

Before proceeding, ensure that you have successfully set up your development environment.

It is also recommended that you be familiar with the app development workflow.

Download the source code

o access the application's source code, you need to be part of the Auterion Developer program. ollow to .

The ision it example is available App Examples v3.

Download the folder and extract the ision it example to your PC.

Build and install the app

In the root directory of the example, run the following commands to build and subsequently install the app on your device:

auterion-cli app build
auterion-cli app install

The app com.auterion.vision-kit-example should now be listed in the installed apps section. You can verify that via WebUI or via the auterion-cli app list command.

App functionality

The app runs a ROS2 node which performs the following steps:

  1. Subscribe to image messages on the /camera/image_raw ROS2 topic.

  2. For each YUV422-encoded image received, compute the average brightness (Y) component of all pixels in the image.

  3. Publish the result on the /image_statistics/average_brightness ROS2 topic.

Inspect the output

Connect to Skynode via SSH and source ROS2. You can then observe the computed average brightness component on the topic configured in the app:

pc> ssh root@10.41.1.1    #SSH into Skynode

host> docker ps     #Copy the container ID for the desired app
host> docker exec -ti <container-id> /bin/bash

app> source /opt/ros/humble/setup.bash
app> ros2 topic echo /image_statistics/average_brightness
Development environment Setup
Application Development
these instructions