so far ive used a new layer and a gaussian blur and or median to dull the moire's in the scans and then created a new adjustment layer for brightness and contrast to further drop out subtle noise. dust and scratches and despeckle never really got the job done.
the person requesting the scan didnt mind this look, i think it might be a bit dramatic
you need to make an edge mask... retouch pro is a great resource... an edge mask is basically using the find edges filter, play with levels a bit to get the amount you want and use that as a mask to retain the details. then you use gaussian blur or dust and scratches to smooth the grain/moire.
If you scanned the image yourself, you might try using the descreen feature of you scanning software. Vuescan is an excellent program for this matter (and I think it used to be free). That's the best option. If you can't scan it again, try masking the background and play with the median filter. The figure is not that bad, I think that once you correct the values and add a small median, you won't even notice moire there. Right now, the most troublesome part is the backg. You can sharpen the whole image once you're done tweaking, and add a little grain to unify figure and background.
Hope it helps.
Last edited by fedezz; September 21st, 2006 at 05:22 PM.