Any hope for this Moiré?

lkroll · #16 10-12-2006, 11:38 AM

...Ro's a genius. Thanks Flora for the link. I've seen other posts that struggle with this and this one definitely beats out the lab color technique.

PixelHawk · #17 10-12-2006, 12:07 PM

Ro's technique definitely got it to look a TON better than it did! After several different attempts, I went with the way that Gary outlined. Here's the final result. Not 'perfect'... but a vast improvement. Just hope it still looks good when it prints.

Thanks again for everybody's help!

Flora · #18 10-12-2006, 12:53 PM

Hi,

... so glad I could help with the link!!

Quote:

Originally Posted by lkroll

...Ro's a genius.

... So true!!!

Might be late already, but here is how I used and adapted Rô's technique for this image....

Following Rô's instructions exactly:

Duplicated the Background.
Run Filter>Other High Pass on the duplicate.
Changed the High Pass Layer's Blending to Linear Light
Run Gaussian Blur on the Linear Light Layer...

.... here are the exact values I used for the 'full size' image:

High Pass Filter = (Attachment 1)
Gaussian Blur = (Attachment 2)
Left the Linear Light Layer's Opacity at 100%..

My Mask = (Attachment 3)

Hope this still helps...

Gary Richardson · #19 10-12-2006, 05:25 PM

Quote:

...Ro's a genius.

Not gonna get any arguments from me.

Thanks Flora for sharing, interesting that your settings are significantly different to the ones I used, 8 for HP and 2 for GB if I remember correctly, (I'll have to try out varying Linear Light opacity and see how it effects things).

mistermonday · #20 10-12-2006, 05:48 PM

I found that HP=6 and GB = 1 worked very well for me with the Opacity at 50%. Clearly the process has a fair amount of lattitude. I also found that a small amount of unsharp mask or smart sharpen really made the final image pop and seemed to completely mitigate the softening caused by the HP-GB process ... and of course the moire pattern had disappeared.
Regards, Murray

PixelHawk · #21 10-13-2006, 10:18 AM

I think ultimately my settings might have been a little higher than that (darn, now I wish I had written them down!), but they seemed to work out. Ended up adding just a tiny bit of noise to it as well... I had considered doing a little sharpening but I was afraid it would just put the moire back in. Ran the proof on the Epson and it seemed to be ok... I guess I'll know when the magazine is pirinted.

Gary Richardson · #22 10-13-2006, 11:30 AM

Good luck Keri, let us know how it all turns out.

PixelHawk · #23 10-14-2006, 12:08 AM

Thank you. The magazine shipped to the printer today... so I'll know in a week or so. The ad client was happy to know we found a solution, and wants to know how we did it... I'm pointing her to this site.

Flora · #24 10-14-2006, 12:59 PM

... four of us used Rô's technique... we all used different values and it worked well for all!!!

That's what counts....Good luck, Keri!!

PixelHawk · #25 10-23-2006, 11:01 AM

Hey All!

Just wanted to let you know I saw the printed piece containing that pic this morning. The Moire is not there!!!

So THANK YOU again for the help on this image.

Gary Richardson · #26 10-23-2006, 04:44 PM

Glad things turned out well. Thanks for letting us know.

byRo · #27 10-23-2006, 04:53 PM

Glad to see that everybody was having fun while I was away.
Can't see myself as a genius, though - it's just you folks who are too nice!

Quote:

Originally Posted by PixelHawk

Just wanted to let you know I saw the printed piece containing that pic this morning. The Moire is not there!!!

Now, that's good news.

Seeing that this topic has come up before, and the technique also solved the other problem - seems that this is destined to become tutorial material.

However, then I would need an example image.
Would it be possible to use the image posted in this thread?
As this image is "client supplied" that would mean an OK not just from the client but from the photograper too. (We can forget the model's release this time

)

OR

If anybody has an unrestricted image with moiré problems I would be glad to hear from you. Please?

Rô (part-time genius

)

creeduk · #28 10-24-2006, 11:02 AM

Excellent thread and Ro brilliant method. Flora as usual you manipulate the tools beautifully and get awesome results.
That was a fun one I tried various other techniques but non of them came close, I guess due to the fact it is not a standard screen causes moiré but a fabric visual one. Great work all.

ianh_1998 · #29 11-02-2006, 05:28 AM

I added one small modification to the workflow already described; I modified the levels (moved the black point and white point to the beginning of the histogram) associated with the rusltant HP/GB/invert/overlay layer. This added more contrast to the filter and by moving the greay point(mid point) in Levels, I had the chance to vary the amount or moire removed.
Regards
Ian