PixelMagic Cream of the Crop 5,546 posts Likes: 6 Joined Nov 2007 Location: Racine, WI More info | Apr 23, 2009 19:50 | #1 Selecting and replacing the background of transparent objects is sometimes quite difficult to do. So I'm curious to see how you guys would approach selecting this pair of glasses. If you work it I'd appreciate you showing you selection method(s). I'll work on my attempt and post it in a few minutes.  HOSTED PHOTO please log in to view hosted photos in full size.
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PixelMagic THREAD STARTER Cream of the Crop 5,546 posts Likes: 6 Joined Nov 2007 Location: Racine, WI More info | Apr 23, 2009 20:20 | #2 Here's my try.  HOSTED PHOTO please log in to view hosted photos in full size.
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PhotosGuy Cream of the Crop, R.I.P.  More info | Apr 23, 2009 20:26 | #3 Being lazy, I'd try the Magic Wand first. Then I'd probably use this: FrankC - 20D, RAW, Manual everything...
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PixelMagic THREAD STARTER Cream of the Crop 5,546 posts Likes: 6 Joined Nov 2007 Location: Racine, WI More info | Apr 23, 2009 21:48 | #4 How would the Magic Wand account for the lens....they need to be selected with a method that maintains their opacity so the new background will show up properly.
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Peano Goldmember  1,778 posts Likes: 133 Joined Aug 2007 More info |
neumanns Goldmember  1,465 posts Likes: 1 Joined Feb 2007 Location: North Centeral Minnesota More info | Apr 23, 2009 23:06 | #6 Being lazy like I am I would change the bleanding mode to multiply...The upside is it retains some apperance of the glass. With just a little more work it would prevent reflection on the near corner from taking on the color of the underlying wood.  HOSTED PHOTO please log in to view hosted photos in full size. 7D, Sigma 8-16, 17-55, 70-200 2.8 IS, 580ExII, ........Searching for Talent & Skill; Will settle for Blind Luck!
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PixelMagic THREAD STARTER Cream of the Crop 5,546 posts Likes: 6 Joined Nov 2007 Location: Racine, WI More info | Peano, that's excellent. I originally thought about using a channel mask but then decided on something a bit simpler.
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PixelMagic THREAD STARTER Cream of the Crop 5,546 posts Likes: 6 Joined Nov 2007 Location: Racine, WI More info | Apr 24, 2009 06:01 | #8 That's a great extraction too; I'm impressed by how both you and Peano maintain the transparency of the lens. neumanns wrote in post #7792804  Being lazy like I am I would change the bleanding mode to multiply...The upside is it retains some apperance of the glass. With just a little more work it would prevent reflection on the near corner from taking on the color of the underlying wood.
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PixelMagic THREAD STARTER Cream of the Crop 5,546 posts Likes: 6 Joined Nov 2007 Location: Racine, WI More info | Apr 24, 2009 06:07 | #9 I just realized that I did not list my steps. Originally I thought about using a channel mask but after thinking over the fact that its primarily a black and white photo I ended up using the Blend If slider.
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PhotosGuy Cream of the Crop, R.I.P. More info | Apr 24, 2009 08:20 | #10 How would the Magic Wand account for the lens.... I commonly use more than one method of selection on the same image - whatever works best for each part. FrankC - 20D, RAW, Manual everything...
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griptape Goldmember 2,037 posts Joined Feb 2007 Location: Home More info | Apr 24, 2009 12:24 | #11 After using the quick select tool to select the white, Select > Inverse, pasted it onto my new picture, and made a layer mask that looks like this:  HOSTED PHOTO please log in to view hosted photos in full size.  HOSTED PHOTO please log in to view hosted photos in full size.
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RenéDamkot Cream of the Crop  39,856 posts Likes: 8 Joined Feb 2005 Location: enschede, netherlands More info | Apr 24, 2009 16:08 | #12 I think if this were for work & high res, I'd use the pen tool on the frame.  I applied that as a mask, and refined a bit to get rid of the white outline, and brushed a bit to fill the "harry potter" text and some other "holes":  Then I copied the background again, and used calculations to get a semi transparant mask for the glass: Edit: Don't pay too much attention to this bit, since it was just fooling around: at the time I didn't understand much about Calculations...)  Brightened that mask a bit with levels:  Finaly clicked that mask, and used the magic wand (any other selection tool will work) to select just the glass, and fill the rest of the mask with black.  Placed the glasses on a public domain sky off http://lohrman.com/skies/skies.htm  Not perfect, since there's a bit of bleed, but okay for the time spent I think  HOSTED PHOTO please log in to view hosted photos in full size. "I think the idea of art kills creativity" - Douglas Adams
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