It measures the screen pattern and performs a fully automated fourier based descreening process.
If you've ever tried fourier descreening manually, you know what a long and painful process it can be and how it can produce annoying artefacts. With this plug in you just push a button and it's done in a matter of seconds without any further ado. As simple as that. And the results are spectacular. No artefacts, no patterns that are part of the image getting in the way and messing everything up, no excessive blurryness. It usually does a much better job than I could do manually (and I was getting pretty good at this).
In order to measure the screen pattern, the plug in needs a scan of high enough resolution. Screen frequency multiplied by three is the absolute minium. Lower than that and you're starting to get moire patterns. 600dpi scans will be sufficient in most cases.
If you're trying to descreen images found on the web, you're probably out of luck. While it may be possible to fix moire patterns in lower res scans using fourier descreening, this plug in is not designed to do it.
The home edition is only €11.25. Well worth the money, considering how much time and effort it can save you.
There's a free demo that works for images up to 2000x2000px - too small for a cover at 600dpi, but enough to see what it can do.
This may sound like a sales pitch, but I really can't recommend it enough.
