🚀 go-pugleaf

After reading up on zero-phase FIR filters, I was wondering if 
there is any use for non-zero-phase filters in image processing?

From what I understand, non-zero-phase filters blur the images
to which they are applied.  Since low-pass non-zero-phase filters blur
high frequency info (edges), can this result be generalized for X-pass?
i.e. would an X-pass non-zero-phase filter blur info from the desired
stop band?  

Thanks,
Susan

P.S. I will summarize the responses from my original posting "2d-dft phase
     info" after an important thesis meeting tomorrow!