Hello folks!
I am trying to use the Lyzenga Algorithm for estimating the depth of water in shallower areas, probably depths under 8-10 meters of lakes.
First of all, how accurate is this algorithm in practice?
Secondly, lets say i have the band values. can someone explain me how to retrieve those depths?
I am following the "Lyzenga Algorithm for Shallow Water Mapping Using Multispectral Sentinel-2 Imageries in Gili Noko Waters" paper, but there are 3 steps of getting NDWIs, NDCIs and after filtering the Sun Glint Correction, then it finally comes to the depth calculating. it end ups in a formula of following:
๐ง = 28.32 โ ๐1 โ 36.25 โ ๐2 + 9.42 โ ๐3 + 16.35
x1 , x2, x3 are RGB values respectively.
What do you guys think? can i just apply this formula ? if not, what is the purpose of all the previous steps, and will they change the rgb values anyways?