Thermal Tools

A tool to convert DJI thermal images to plain 32bit float TIFFs for use with WebODM.

Usage

Windows

• Download and install https://github.com/uav4geo/Thermal-Tools/releases/download/v1.2.0/Thermal_Tools_Setup.exe

Linux

• Download https://github.com/uav4geo/Thermal-Tools/releases/download/v1.2.0/Thermal_Tools.AppImage
• Run: chmod +x ./Thermal_Tools.AppImage && ./Thermal_Tools.AppImage

Afterwards:

• Select a folder with thermal images captured with a DJI drone
• Optionally set environment parameters
• Press "Process"

⚠️ When processing the resulting images with WebODM, make sure you don't select the radiometric-calibration option. The images processed with this software are already calibrated.

Batch Processing

The application can be invoked from the command line for processing images in scripts:

./Thermal_Tools.AppImage [args]

--input                    Input folder for batch processing. Default: ""
--output                   Output folder for batch processing. Default: "converted"
--distance                 Distance (m). Default: 5
--humidity                 Humidity (%). Default: 70
--emissivity               Emissivity. Default: 1.0
--ambient-temperature      Ambient Temperature (degrees C). Default: 25.0
--reflected-temperature    Reflected Temperature (degrees C). Default: 23.0

Remote API

You can also process thermal images remotely via a web API with NodeThermalTools.

Supported Drones

• Zenmuse H20N
• Zenmuse H20 Series
• Matrice 30 Series
• Zenmuse XT S
• Zenmuse H30 Series
• Mavic 2 Enterprise Advanced
• DJI Mavic 3 Enterprise
• DJI Matrice 4 Series

Supported Platforms

• Windows
• Linux

Unfortunately DJI does not provide binaries for macOS, so this application cannot work on macOS.

Build

You'll need to install https://docs.flutter.dev/get-started/install, then:

flutter build windows

Or

flutter build linux

Development

Install FVM and run:

fvm flutter pub get

You can run the application in development mode by running:

fvm flutter run

Contributions

We welcome contributions! Feel free to open pull requests.

Licenses

• This code, not including the DJI Thermal SDK and Exiftool is licensed under the AGPLv3
• The DJI Thermal SDK binaries are proprietary. See https://www.dji.com/downloads/softwares/dji-thermal-sdk for licensing details.
• ExifTool is licensed under the GPLv3