RetouchPRO

Go Back   RetouchPRO > Technique > Photo Restoration
Register Blogs FAQ Site Nav Search Today's Posts Mark Forums Read


Photo Restoration Repairing damaged photos

removing Digitalback-Moiré in a trouser.

Reply
 
Thread Tools
  #1  
Old 02-15-2006, 11:17 AM
pure's Avatar
pure pure is offline
Senior Member
 
Join Date: Feb 2006
Location: Europe, Germany
Posts: 199
removing Digitalback-Moiré in a trouser.

hi,

any idea how i could remove a digitalback produced moiré?

its in a piece of texture, a trouser. green.
i used selective color but it wont dissapear i tried all channels

if i use blur it gets too soft.

i installed the Phase One De-Moiré. but i cant find it in PS CS2. maybe its for PS 7 only.

thanks
Reply With Quote top
  #2  
Old 02-15-2006, 11:33 AM
mistermonday's Avatar
mistermonday mistermonday is offline
Moderator
Patron
 
Join Date: Dec 2005
Posts: 3,028
Pure,
It all depends on the nature of the Moire, what solution will be most effective.
Can you post the image?
Regards, Murray
Reply With Quote top
  #3  
Old 02-15-2006, 11:37 AM
pure's Avatar
pure pure is offline
Senior Member
 
Join Date: Feb 2006
Location: Europe, Germany
Posts: 199
yes

finally discovered why the filter demoirize is not available: i have 2 folders in my PS. "Plug-ins" and german "Zusatzmodule".

so i try this PhaseOne Filter now, ok?

thanks
Attached Images
File Type: jpg demoirize.jpg (48.5 KB, 90 views)
Reply With Quote top
  #4  
Old 02-15-2006, 11:49 AM
philbach's Avatar
philbach philbach is offline
Senior Member
Patron
 
Join Date: Mar 2003
Location: Belgium, Wi
Posts: 1,332
Convert To Lab

Well I improved it some. I converted the file to lab and then used surface blur (Radius-15 and Threshold-38) on both the a and b channels.
Attached Images
File Type: jpg SurfaceBlur.jpg (5.3 KB, 61 views)
Reply With Quote top
  #5  
Old 02-15-2006, 11:52 AM
pure's Avatar
pure pure is offline
Senior Member
 
Join Date: Feb 2006
Location: Europe, Germany
Posts: 199
ok phil, fine result,
only the original color is gone, which should be preserved.

i tried the Demoirize plugin, it works, but the curves formerly known as moiré are now a little bit darker curves as the trouser.

hm.
Reply With Quote top
  #6  
Old 02-15-2006, 11:54 AM
mistermonday's Avatar
mistermonday mistermonday is offline
Moderator
Patron
 
Join Date: Dec 2005
Posts: 3,028
Hi Pure,
you are very fortunate with this image because the Moire pattern is in the color, not in the lightness. Convert the image to LAB. Apply a Gaussian Blur of 20 to both the A and B channels. That's all.
Regards, Murray
Attached Images
File Type: jpg Demoirize Pure Rev MM.jpg (83.7 KB, 49 views)
Reply With Quote top
  #7  
Old 02-15-2006, 12:08 PM
mistermonday's Avatar
mistermonday mistermonday is offline
Moderator
Patron
 
Join Date: Dec 2005
Posts: 3,028
Pure, was the original color green or tan?
Regards, Murray
Reply With Quote top
  #8  
Old 02-15-2006, 12:16 PM
pure's Avatar
pure pure is offline
Senior Member
 
Join Date: Feb 2006
Location: Europe, Germany
Posts: 199
green,

i cant convert it, sorry. i am in RGB and have dozens of layers here, so i am always afraid of converting a high res image to LAB back.

i tried the selective color method and reduced it a bit, then i applied the filter "decrease noise" (translated from german? in german its "störungen reduzieren")

that made it. not perfect but nicer than it was before.

i dont know any better method in the moment to preserve the original color.

thanks
Attached Images
File Type: jpg demoirize2.jpg (50.5 KB, 36 views)
Reply With Quote top
  #9  
Old 02-15-2006, 12:24 PM
pure's Avatar
pure pure is offline
Senior Member
 
Join Date: Feb 2006
Location: Europe, Germany
Posts: 199
Demoirize Filter

thanks for your help though. i appreciate.

the "Demoirize Filter"
actually if you want to give it a try, its free and very good:
Demoirize Filter from Phase One. sorry doesnt have the URL by hand..

i would like to know why the Demoirize Filter doesnt work mostly. its greyed out. if i select the backgroundimage, it works. and this very good. but selecting any other layer is helpless. its greyed out, i cant select it in Filters palette.

any idea? maybe someone who has it?
Reply With Quote top
  #10  
Old 02-15-2006, 12:31 PM
mistermonday's Avatar
mistermonday mistermonday is offline
Moderator
Patron
 
Join Date: Dec 2005
Posts: 3,028
Pure,
I understand your concern about converting multilayers to LAB - some may not survive the transition. What about Ctrl + Alt + Shift + E to make a composite layer. Copy it into a new image, convert to LAB and paste the result back into your master.

As for the color problem, there are other ways to get rid of the Moire but still using LAB.

Just use the L channel and discard the A&B. Add a new blank layer, fill it with a color, change the layer blend mode to color.

You might be able to get rid of the Moire in RGB by doing some Channel blending but this will be a lot more effort.

Regards, Murray
Attached Images
File Type: jpg demoirize pure Rev MM2.jpg (83.7 KB, 17 views)
File Type: jpg demoirize pure Rev MM3.jpg (85.0 KB, 13 views)

Last edited by mistermonday; 02-15-2006 at 12:40 PM.
Reply With Quote top
Reply

  RetouchPRO > Technique > Photo Restoration


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Digital Camera Moire christo Photo Restoration 11 02-15-2006 11:15 AM
How to keep the definition of a person when removing blemishes Gerald McClaren Photo Restoration 1 12-08-2005 11:29 AM
Severe Fabric Moire satokome@comcas Image Help 10 11-30-2004 09:39 PM
removing harsh shadows RedAlert Image Help 30 09-05-2002 08:41 AM
[Definition] Moire (or Moiré) Doug Nelson Input/Output/Workflow 0 04-29-2002 06:32 PM


All times are GMT -6. The time now is 01:20 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
SEO by vBSEO ©2011, Crawlability, Inc.
Copyright © 2016 Doug Nelson. All Rights Reserved