Looking for an accurate color measurement tool
When comparing the color of Lithops plants and the terrain, it is essential to get as exact, accurate and objective color measurements as possible. This is where hyperspectral imaging comes in.
The hyperspectral camera is well suited for color measurements since it is more accurate than RGB cameras and, unlike visual inspection, completely objective. It is possible to define the target’s absolute color for instance in Lab color space with the accuracy of ∆E<1, or its relative color in relation to another target as accurately ∆E=8-10 accuracy.
Why Specim IQ
Next, it was the matter of finding a hyperspectral camera that would work in the extreme conditions in Southern African deserts. A place where distances are long and roads bumpy, the temperatures can vary from freezing nights to sweltering heat during the day, there is dust everywhere, and the light is harsh and changes quickly, you need equipment that meets certain requirements.
What you need is a compact and durable, yet high quality and fast camera. When Tommi Nyman learned about Specim IQ, he knew that this was the camera they wanted for the expedition.
“The terrain is rocky, so you do not want to carry very big and heavy equipment around,” says Dr. Tommi Nyman. “Specim IQ was small and mobile, easy to transport and use in the field, and it was very handy for doing the measurements we wanted.”
All the required data is now collected, and the Lithops project continues with data analysis. The results will be available later.
As for hyperspectral imaging, there is still plenty of work in ecological research. It is a vast field of study, with questions similar to the ones studied in the Lithops project. Once there is equipment that is easy to transport and use in the field, there surely is a lot of use for it in the ecological research.