By default, Photoshop displays the color channels—for example, Red, Green, and Blue—as independent grayscale images, which is ideal for masking. But Photoshop actually sees the channels in color. You can see the channels in color as well by choosing Preferences > Interface.
- [Instructor] Alright, after that initial look…at color channels, it may seem downright peculiar…that the one thing that these channels are not is colorful.…After all, if you view any one of these…channels independently, whether it's the red channel,…the green channel, or the blue channel, you're gonna…see what is essentially a grayscale version of the image.…And there's really no way to reconcile the notion…that somehow, three grayscale images mix together…to form the full color composite.…It might seem even stranger when I demonstrate…that if you view two channels together,…you once again see those channels in color.…
So for example, if I click on a blue channel,…to view it independently, and then I also…turn on the green channel, then I'm gonna see…how these two channels mix together.…But, if I turn the green channel back off,…then I once again see that grayscale blue channel.…Same thing happens if I turn on the red channel…while the blue channel is also turned on;…then we're gonna see how these two channels mix together.…
Author
Released
9/25/2018- Working with the different channels
- Creating the best masks
- Enhancing selections text display
- The Color Range command
- Defining a selection
- The Focus Area command
- Applying global refinements
- Refining selections and masks
- Working with alpha channels
- Extracting masks from channels
- Working with blend modes
- Working with the Refine Edge adjustment
- Compositing
Skill Level Intermediate
Duration
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Photoshop Compositing Tips, Tricks, & Techniques
with Seán Duggan1h 22m Intermediate
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Introduction
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Thumbnails and transparency5m 48s
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1. How Channels Work
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It all starts with a channel1m 49s
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How color channels work6m 5s
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Viewing channels in color4m 12s
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How RGB works4m 15s
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Single-channel grayscale6m 21s
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How CMYK works5m 49s
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Mask in RGB, copy to CMYK8m 25s
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2. How Masks Works
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How masks work7m 32s
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Creating an alpha channel5m 44s
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3. The Color Range Command
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A brief Magic Wand refresher4m 36s
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Localized color clusters5m 45s
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4. Select > Subject
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Introducing Select > Subject3m 27s
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Combining selections6m 1s
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5. The Focus Area Command
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Edges vs. noise3m 40s
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Using the Focus Area brush4m 58s
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Bringing in some better hair5m 53s
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Masking a gradient layer4m 44s
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6. Refining Selections and Masks
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Introducing Select and Mask6m 17s
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Applying global refinements2m 53s
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Decontaminating colors6m 23s
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Selecting before you refine4m 29s
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7. Extracting Masks from Channels
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Mastering channel operations2m 55s
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8. Compositing: Putting It All Together
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The power of compositing2m 7s
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Dressing up a bad background4m 35s
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Masking a background image5m 59s
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Enhancing your snowflakes4m 32s
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Conclusion
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Wrapping it all up4m 50s
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Video: Viewing channels in color