RetouchPRO

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


Photo Compositing Collage, montage, masking, selections, combining, etc.

Your best masking techniques.

Reply
 
Thread Tools
  #21  
Old 10-10-2006, 02:29 AM
bart_hickman's Avatar
bart_hickman bart_hickman is offline
Senior Member
 
Join Date: Nov 2005
Location: Oregon, USA
Posts: 479
Re: Your best masking techniques.

Yet another good one Butch.

Well finally got a free moment. Here's mine. About 90% background eraser with magnetic/polygonal lasso in places where the shady parts of the snag were identical in color to the background.

Unlike masking, the BGE tries to decontaminate BG colors that have mixed with the fringes of the foreground. However, it's not perfect in textured situations like this, plus I had some low opacity background leftovers. To avoid manual erasing as much as possible, I create an inverted mask from the extraction (ctrl-click the snag thumbnail, add layer mask to copy of new background, ctrl-i to invert the mask). Sometimes I set the blend mode to screen, but in this case normal was fine.

I attached the layer palette to illustrate.

I also did a second mini-extraction on the new background so the snag appears to emerge from behind the trees--that's just one more layer. I left it out of the layer palette I attached for simplicity.

Bart
Attached Images
File Type: jpg extract_snag.jpg (96.3 KB, 57 views)
File Type: jpg snag_layers.jpg (18.4 KB, 28 views)
Reply With Quote top
  #22  
Old 10-10-2006, 02:42 PM
Gary Richardson's Avatar
Gary Richardson Gary Richardson is offline
Senior Member
 
Join Date: Mar 2004
Location: Yorkshire, England
Posts: 2,717
Re: Your best masking techniques.

Another BGE user here. Tried all sorts of different approaches, but none gave as good a result. Found myself having to do quite a lot of touch ups with the history brush, and lots of on the fly tolerance adjustments with BGE.

Not totally happy with result, if this was anything but an exercise I think I'd have to play with it some more.
Attached Images
File Type: jpg tree.jpg (99.4 KB, 26 views)
Reply With Quote top
  #23  
Old 10-10-2006, 03:20 PM
Craig Walters's Avatar
Craig Walters Craig Walters is offline
Senior Member
 
Join Date: Apr 2005
Location: somewhere over there
Posts: 8,786
Blog Entries: 4
Re: Your best masking techniques.

hehehe, you are definitely a sadist, bart

just one thing here on the examples posted from all, i'd like to see these on a solid, neutral background, so we can really see how good these are. i know one technique mentioned here on RP for doing these recommended finding a background where your extraction 'flaws' would not show as much. but here, for this exercise, i'd like to see them on solid backgrounds.

craig
Reply With Quote top
  #24  
Old 10-10-2006, 03:36 PM
Gary Richardson's Avatar
Gary Richardson Gary Richardson is offline
Senior Member
 
Join Date: Mar 2004
Location: Yorkshire, England
Posts: 2,717
Re: Your best masking techniques.

Wish you'd asked that before I'd flattened image for posting Craig.

I've only got a small hard drive (he says hanging his head in shame), so I don't keep the layered files for exercises like this. (Mostly I don't keep the files after posting either).
Reply With Quote top
  #25  
Old 10-10-2006, 06:04 PM
Peter S's Avatar
Peter S Peter S is offline
Senior Member
 
Join Date: Nov 2004
Location: UK
Posts: 2,142
Re: Your best masking techniques.

Quote:
Originally Posted by Gary Richardson

I've only got a small hard drive (he says hanging his head in shame).
I keep getting spam Emails about this sort of thing, I try to ignore them and get on with life
Reply With Quote top
  #26  
Old 10-10-2006, 06:52 PM
Daviskw's Avatar
Daviskw Daviskw is offline
Senior Member
 
Join Date: Apr 2006
Posts: 728
Re: Your best masking techniques.

Hi craig

Never flaws... just selection choices....

Butch
Attached Images
File Type: jpg 1PxjNgYv9DNb3uawNZxh7KHvvnZ.jpg (98.3 KB, 55 views)
Reply With Quote top
  #27  
Old 10-10-2006, 10:22 PM
plugsnpixels's Avatar
plugsnpixels plugsnpixels is offline
RetouchPRO LIVE Guest Artist
Patron
 
Join Date: Dec 2005
Location: LA area
Posts: 2,027
Thumbs down Re: Your best masking techniques.

For those who prefer a plug-in approach for the sake of speed, Digital Film Tools just released EZMask this week. The example with the girl on the page is the very first time I tried it, and it only took a little practice to achieve the results shown.
Reply With Quote top
  #28  
Old 10-10-2006, 10:41 PM
bart_hickman's Avatar
bart_hickman bart_hickman is offline
Senior Member
 
Join Date: Nov 2005
Location: Oregon, USA
Posts: 479
Re: Your best masking techniques.

Quote:
Originally Posted by plugsnpixels
For those who prefer a plug-in approach for the sake of speed, Digital Film Tools just released EZMask this week. The example with the girl on the page is the very first time I tried it, and it only took a little practice to achieve the results shown.
That particular example is pretty easy for either extract or BGE. I takes about 30 seconds with the extract filter in CS2 which (along with the BGE)--just use a fat brush and default settings. Extract has all the same defringing/decontamination technology although Adobe seems to go out of their way to not mention this fact (it's mentioned briefly in the manual buried in the text.) I'll give EZMask a try on some more difficult ones and see how it compares.

There's another one similar to EZMask (don't know if it's better) for less $ here:
http://www.imageskill.com/background...ndremover.html

The imageskill tool works pretty well although I'd say it's only roughly similar in performance to the photoshop extract tool.

Bart
Reply With Quote top
  #29  
Old 10-10-2006, 10:47 PM
bart_hickman's Avatar
bart_hickman bart_hickman is offline
Senior Member
 
Join Date: Nov 2005
Location: Oregon, USA
Posts: 479
Re: Your best masking techniques.

Quote:
Originally Posted by Kraellin
hehehe, you are definitely a sadist, bart

just one thing here on the examples posted from all, i'd like to see these on a solid, neutral background, so we can really see how good these are. i know one technique mentioned here on RP for doing these recommended finding a background where your extraction 'flaws' would not show as much. but here, for this exercise, i'd like to see them on solid backgrounds.

craig
The masked screening and/or multiplying (I only did screening as shown in my first post) I do takes care of any leftover old colors so the new BG color is automatically mixed into the fringes or semi-transparent portions of the extracted object.

In practice, I hardly ever have to be this careful because the new background is generally more forgiving than a pure color.

Bart
Attached Images
File Type: jpg extract_snag_grey.jpg (72.2 KB, 18 views)
File Type: jpg extract_snag_color.jpg (92.5 KB, 17 views)
File Type: jpg extract_snag_white.jpg (77.4 KB, 21 views)
File Type: jpg extract_snag_black.jpg (81.9 KB, 19 views)
Reply With Quote top
  #30  
Old 10-10-2006, 11:06 PM
plugsnpixels's Avatar
plugsnpixels plugsnpixels is offline
RetouchPRO LIVE Guest Artist
Patron
 
Join Date: Dec 2005
Location: LA area
Posts: 2,027
Red face Re: Your best masking techniques.

Bart, I've also got Background Remover on hand to add to the site--I need to get to that. As a Mac user I'm a bit slower firing up the Windows plug-ins, but I do run Windows on a MacBook, so...
Reply With Quote top
Reply

  RetouchPRO > Technique > Photo Compositing


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
Help for a new Photoshop user - Masking !?? Crazy Cockatoo Photo Retouching 7 08-06-2007 04:42 PM
Professional Ret. Techniques in commercials pure Work/Jobs 33 07-03-2007 01:50 PM
Help ! Problem with Masking Technique wolverine Photo Compositing 3 11-07-2006 09:48 AM
Levels Adjustment Layer - Masking jonk Photo Compositing 3 02-20-2005 01:56 AM
Saturation masking p.114 dpnew Hidden Power Support 2 01-08-2004 12:57 PM


All times are GMT -6. The time now is 05:45 PM.


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