So here I am looking at that alpha channel called final mask and you can see…that this entire region of hair is a mess.…I suppose things are okay in the center, but up at the top it's awfully scrappy…and down here at the bottom it doesn't even make sense.…So we are going to essentially re- create this section of the mask using…the Elliptical Marquee tool, but this area isn't really strictly speaking elliptical.…It's more of a shorter ellipse on the bottom than it is at the top.…So we are going to peel the ellipse into two pieces and stretch one of those…pieces independently.…
And here's how it works.…I am going to switch back to the RGB image so we can see the actual hair, and I…will go ahead and switch to the Elliptical Marquee tool, and then I am going to…position my cursor right about here.…Notice this would be the center point for any sort of ellipse we would…draw around this region.…So I am going to move my cursor directly in from that center point about yay far…from the match, and I'll press and hold the Alt key or the Option key on the Mac…
Author
Released
12/20/2011- Understanding the Calculations command
- Calculating masks with the Subtract and Add modes
- Enhancing a mask with Apply Image
- Creating a traditional blue screen mask
- Masking dark hair against a busy background
- Painting in missing hairs with a Wacom tablet
- Masking blonde hair and flames
- Performing selective edits with Dodge and Burn
- Masking a difficult image in multiple passes
Skill Level Intermediate
Duration
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Deke's Techniques
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Photoshop Masking and Compositing: Fundamentals
with Deke McClelland11h 35m Intermediate
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Introduction
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Welcome2m 10s
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1. Calculating a Hair Mask
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Compositing dark hair5m 47s
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2. Masking Dark Hair
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Creating a contrast mask4m 34s
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Cleaning up a base mask5m 55s
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Reinstating missing details5m 12s
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Building a second-pass mask6m 30s
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Smudging bad transitions5m 19s
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Matching the light source3m 50s
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3. Masking Light Hair
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Calculating blonde hair4m 50s
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Painting in Airbrush mode4m 30s
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Building a flame mask7m 25s
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4. Masking the Tough Stuff
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Conclusion
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Next steps1m 17s
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Video: Repairing details with a warped ellipse