Need to mask phase and coherence for unwrapping (coherence > 0.2)

[ABraun]

A similar topic was opened a few days ago.

One way to get pricise unwrapping

Dear all, When I am doing unwrapping, it gives to me some errors in noisy places because of this, I should delete noisy places. I tried to delete low coherence parts by SNAP but as you know there is not any proper way in SNAP because of this I think it can be better, if I cut fringes from my phase picture, then do unwrapping. Is this good way? Is there any tools in SNAP for cutting fringe area and then do unwrapping (image1)? If you look at my fringes, any part is going to one direction and I…

In your case the unwrapping is disturbed by the 0 values in your raster because they are not interpreted as no-data-values.
Why not unwapping the whole image and excluding the low coherence areas afterwards?