Striations in Photograph and Indesign

[Jim Slade]

I have some photograph scans that come out with striations when I export in Indesign. On the screen I can see the striations at certain zooms (as in the top) and at others the disappear (bottom). I don't see the striations in the PDF but they reappear when printing. This makes me suspect something funky with the image.

I was wondering if there is something I can do (e.g. filter) in Affinity to correct this problem. I have never seen this before.

I have some scan

[walt.farrell]

28 minutes ago, Jim Slade said:

I have some photograph scans that come out with striations when I export in Indesign.

If you really mean Indesign, aren't you in the wrong set of forums?

[v_kyr]

Try the APh Denoise filters ...

[Jim Slade]

Thank you very much. Suspected that would get the general approach but did not know which one(s) to use. That seems to fix the problems.