TSAVI index parameters

OTB Usage
1

Hi. I have a question about the radiometric indices tool. I want to calculate TSAVI on a Landsat-8 image but I don’t know how OTB calculates it. Are the parameters of the radiometric indices set to some default values?

2

Hello,

there is no way to modify the parameters in the application, looking at the code the parameters are:

  • A = 0.7
  • S = 0.9
  • X = 0.08

Cédric

3

Okay. Thank you very much. So if I need to calculate TSAVI, I am going to have to calculate A and S(slope). I think it’s done through quantile regression but I don’t know if there are other ways to do it…