From the course: Photoshop Masking and Compositing: Fundamentals
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The other three-channel mode: Lab - Photoshop Tutorial
From the course: Photoshop Masking and Compositing: Fundamentals
The other three-channel mode: Lab
In this exercise, I'll introduce you to Photoshop's other three channel color mode which is lab. I've updated my composition and saved it as B&W adjustment.psd. It contains that black and white adjustment layer although it's turned off. Now converting between color modes is technically a destructive modification that is Photoshop has to go in and rewrite all the pixels inside the image. Now converting to lab, because it offers a very large color gamut is about as nondestructive as it gets still it's probably a good idea to go ahead and duplicate our image before we start. So I'll go up to the Image menu and choose a Duplicate command and I'll call this one Lab variation and click OK. All right, now I'll go up to the Image menu choose mode and then choose Lab Color and a note before I go any farther there are some disagreement out there about how you should pronounce lab. There is a group of folks that are of the mind that you should pronounce each and every letter as an L-A-B. I'm…
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Contents
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The Masks and Channels panels4m 48s
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How color channels work7m 7s
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Viewing channels in color3m 24s
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How RGB works4m 12s
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Single-channel grayscale5m 12s
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Mixing a custom "fourth" channel5m 15s
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The other three-channel mode: Lab5m 45s
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A practical application of Lab4m 55s
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The final color mode: CMYK7m 6s
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Introducing the Multichannel mode5m 56s
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Creating a unique multichannel effect5m 18s
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The channel is the origin of masking1m 54s
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