Isolation please help!

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BM Photography
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Posted Tue Sep 4, 2012 2:17PM
I'd like to be able to isolate subjects from a white background and know that I will get my images always excepted. I currently do my cut-outs by enlarging the subject to 300% then using a pen tool carefully draw round, then fill with no feathering. But I sometimes get files rejected being to feartherd or rough. Is there a better way?  

(Edited on 2012-09-04 14:18:47 by brendanmcilhargey)

(Edited on 2012-09-04 14:20:49 by kelvinjay)
cmannphoto
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Posted Tue Sep 4, 2012 2:28PM
Feverstockphoto
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Posted Tue Sep 4, 2012 4:08PM
Quick seletion tool, then refine edge works for me most of the time. Youtube has lots of videos on using refine edge and other methods to isolate subject from background.
blackwaterimages
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Posted Wed Sep 5, 2012 4:20PM
Posted By brendanmcilhargey:  Is there a better way?  



Yes, definitely - light and shoot properly, and the most you'll need to do is a tiny bit of cleanup. As much as I generally dislike his work, this guy has the most complete how-to on the subject: http://www.zarias.com/white-seamless-tutorial-part-1-gear-space/  


One of the big things that I've seen be a problem for people is how to balance and separate the lighting of the subject and background. He discusses this well.
matthewleesdixon
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Posted Wed Sep 5, 2012 5:06PM

Perfect Mask works well for tricky cut outs like hair, easier and cleaner than using photoshop...


http://www.ononesoftware.com/products/suite7/
Difydave
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Posted Thu Sep 6, 2012 4:55AM

As blackwater images says above, lighting and getting it right "in camera" is the way to go.


Using the pen tool only works for some subjects with the subject all in focus, generally where you have varying softness due to DOF it is difficult to get the edge feathering right as it changes front to back depending on the focus. You should apply some feathering after using the pen tool. 1 or 2px is usually OK.


Remember the  rejection notice is just "boilerplate" one-size-fits-all. Your image may not suffer from all the reasons given. The best way to get feedback is to post a full sized watermarked image in the critique forum.
kelvinjay
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Posted Thu Sep 6, 2012 5:49AM

Posted By blackwaterimages:
Posted By brendanmcilhargey:  Is there a better way?  



Yes, definitely - light and shoot properly, and the most you'll need to do is a tiny bit of cleanup. As much as I generally dislike his work, this guy has the most complete how-to on the subject: http://www.zarias.com/white-seamless-tutorial-part-1-gear-space/  


One of the big things that I've seen be a problem for people is how to balance and separate the lighting of the subject and background. He discusses this well.



Nice tutorial. Thanks for sharing it.
vandervelden
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Posted Thu Sep 6, 2012 5:50AM
I use a sheet of opaque perspex behind the object/model, behind the perspex is a large softbox set 1 or 2 stops above the frontal lights. Perfect isolation every time without post-processing with fiddly software.
DebbiSmirnoff
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Posted Thu Sep 6, 2012 4:45PM

Good isolation with not much Photoshop requires space. You have to have the distance from the background to the subject or the white will spill onto the subject. I live vanndervelden's way. I'm anxious to try it!
catchlights_sg
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Posted Mon Sep 10, 2012 10:22AM
You need feather your selection a little, try 1 or 2 pixel and see.
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