In material science curved surfaces may be heated due to study thermal flow.Here a simple image is projected on top of the peaks surface and the red are is measured in square pixels. Deaunay is used to create triangles whos area is summed up, if the color criteria is met.
Michael Wunder (2020). Colored Area on a Curved Surface (https://www.mathworks.com/matlabcentral/fileexchange/5726-colored-area-on-a-curved-surface), MATLAB Central File Exchange. Retrieved .
Excellent! Just what I was looking for :)
I just replace the mandrill image for the image I want by doing this:
Thank you very much!