I am trying to landmask a geotiff grayscale SAR image.As I am new to this field I am unable to perform landmasking , also I am having an 18m resolution image, if I try to use toposheet these are available in resolution of 30 m and 90 m.
Actually what is your status? Where do you struggle?
I think we can’t do all the work for you.
There are already some examples and guides mentioned in the forum. Have you followed already one of those?
I am performing Landmasking in Python, I am not able to find any good
literature in this regard. Also I am trying to use DEM tile but the
resolution of the tile for landmasking and that of image are different.
Kindly guide in this regard.