Unskewing SICD data

[rachelglenn]

I didn't know where to post this question. I am trying to unskew the SICD data from Umbra. I saw your processing function apply_skew_poly. Do you have any examples of how to use this function to unskew SICD data?

Thanks for the help

from sarpy.processing.sicd.normalize_sicd import apply_skew_poly

[utwade]

"Deskew", as referred to in that particular function, is for recentering in the spatial frequency domain, not for image domain manipulation. Since Umbra data is always centered (In SICD, DeltaKCOAPoly=0, for all Umbra data I am aware of), this is probably not the function you are looking for.

I don't want to speculate on what you are looking to do, but perhaps what you really want is slant-to-ground projection in the image domain to remove the squint-induced shear?