Error in indices calculation

[enomis-dev]

Hi Syamkakarla, I have a suggestion for you, in your notebook https://github.com/syamkakarla98/Satellite_Imagery_Analysis/blob/main/code/Sundarbans_Satellite_Imagery_Analysis_using_Python.ipynb

Before calculating indices you should convert the bands to float otherwise you will have many problems.
When calculating normalization, for instance, at the numerator you have band1-band2 but if you are using uint data type you are not allowed to use negative values and you will have a wrong computation (actually you have just a warning).
For instance, in the NDVI you get 1 for water areas, you should have values near to -1. If you do:
arr_st = arr_st.astype(float) you'll get a correct value.