From the course: Photoshop Masking and Compositing: Fundamentals
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Converting a channel into a mask - Photoshop Tutorial
From the course: Photoshop Masking and Compositing: Fundamentals
Converting a channel into a mask
In this exercise, we're going to take that ideal base channel, which we've decided is Blue, and we're going to transform it into a highly accurate mask. I'm still working inside that file Glancing model.jpg, found inside the 08_everyday folder. As you may recall, when you're masking an image, the portion that you want to select needs to be white, and the area that you don't want to select needs to be black, which is exactly the opposite of what we have going here. So I've gone ahead and selected the Blue channel inside the Channels panel. I'll reverse the luminance by going up to the Image menu, choosing Adjustments, and then choosing the Invert command, or pressing Control+I, or Command+I on the Mac, which gets us pretty close to the mask we're looking for. Here is the problem though: I just applied that change to a color bearing channel, so if I switch back to the RGB image, you can see that I've pretty well ruined it. And so the moral of the story is, leave your color bearing…
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Contents
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Choosing the ideal base channel5m 7s
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Converting a channel into a mask6m 34s
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Painting with the Overlay mode7m 27s
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Painting with the Soft Light mode5m 55s
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Mask, composite, refine, and blend4m 40s
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Creating a more aggressive mask7m 2s
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Blending differently masked layers7m
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Creating a hair-only mask6m
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Using history to regain a lost mask3m 42s
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Separating flesh tones from hair8m 28s
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Adjusting a model's color temperature4m 30s
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Introducing the Calculations command7m 22s
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Extracting a mask from a Smart Object6m 34s
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Integrating a bird into a new sky5m 40s
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Creating synthetic rays of light6m 4s
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Masking and compositing light7m 39s
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Introducing a brilliant light source7m 5s
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Using the image to select itself1m 37s
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