I have been trying to search a way out to convert polar panorama to cylindrical panorama. But I couldn't get anything on it.
So, I would like to ask if is it possible to do so?
Technically, there is a technique to convert a polar panorama to a cylindrical panorama, but the results won't be what you are looking for. The reason for this is that in the process of creating a polar panorama there is information lost because pixel data is changed.
So when I convert back to a rectangular/cylindrical form there will be blur damage all over, but mainly to the bottom and top of the image.
This is the result of the process:
As you can see, there is damage all over the image because of the process of creating a polar panorama. It is even more apparent when you zoom in.
If you want to try this process yourself. Use Filter -> Distort -> Polar Coordinates and choose the polar to rectangular option. After the transformation, you might have to vertically transform your image so the proportions are correct.