I’m working with an ERS PRI-SLC image, interested mainly in features over the ocean. The image is flipped E-W, so I need to apply (I suppose) terrain correction to geocode it.
After opening it, I have done the following steps:
calibrate the product
terrain correction (range-dopler)
The image now looks as expected (the islands on it are properly displayed now) but the ocean is a single dark grey patch. So it seems that I can not work on it any more.
In a nut shell, I need to do some processing over the ocean and geocode the image as well. What am I doing wrong? Any tips?