FLIRtoDash

Dash webapp to get some statistics from pixel values of an image (saved as CSV). The statistics are calculated over a selected region of interest (ROI). The app was intended to get some statistics from thermographic images from a FLIR camera, but can be used for other types of images as well.

FLIRtoDash screenshot

Installation

The following instructions describe two installation options on a linux system and might deviate to the installation on Windows/macOS.

Option 1: Install the Docker image containing the webapp

Get the Docker image from Docker Hub:

sudo docker pull dockificial/ubuntu_flirtodash:latest

Create a local Docker network:

sudo docker network create --subnet 172.20.0.0/24 multi-host-network

Create and run a container. The container is attached to the network with the IP 172.20.0.2:

sudo docker run -itd --network=multi-host-network --ip 172.20.0.2 dockificial/ubuntu_flirtodash:latest

The webapp is now reachable with a browser through http://172.20.0.2:8050 .

Option 2: Webapp installation on an Ubuntu Server image to run as VM in VirtualBox

  1. Download Ubuntu Server iso image.
  2. Create a VirtualBox VM with the iso.
  3. Install the following packages: 
    sudo apt-get -y install virtualenv python3-pip unzip tmux
  4. Create a virtual environment and enter it: 
    virtualenv venv -p python3
source venv/bin/activate
  5. Set empty PYTHONPATH environment variable: 
    export PYTHONPATH=
  6. Install necessary Python3 packages: 
    pip3 install --upgrade pip --user
pip3 install numpy
pip3 install pandas
pip3 install scipy
pip3 install dash
pip3 install dash_bootstrap_components
  7. Download and uncompress FLIRtoDash app: 
    cd
mkdir flir
cd flir
wget https://github.com/gitificial/FLIRtoDash/archive/master.zip
unzip master.zip
  8. Add a new cronjob to start the webapp at boot time. Open the cronjob file with the command “crontab -e” and add following line to the very end and save it (Ctrl-d Y): 
    @reboot tmux new-session -d -s "flirSession" $HOME/flir/FLIRtoDash-master/flir_start.sh
  9. Reboot the system. The webapp is now reachable on http://UBUNTU_SERVER_IP:8050

Files overview:

flirToDash.py - Dash webapp
Dockerfile - Dockerfile to create a Ubuntu Docker image with the webapp
flir_start.sh - Script to start webapp at boot time.
example.csv - Thermographic image as CSV. Each table cell contains the temperature of it’s corresponding pixel.