From the course: Photoshop 2020 One-on-One: Fundamentals

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How luminance works

How luminance works - Photoshop Tutorial

From the course: Photoshop 2020 One-on-One: Fundamentals

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How luminance works

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- [Instructor] Alright, I'm going to start things off by introducing you to some terms and ideas that will help you understand how luminance works inside of a digital photograph. And these terms and ideas will not only help you better understand this course, but they will help you better understand how to adjust luminance inside your own photographs. And so here we are looking at the most drab washed out photograph conceivable, hopefully worse than anything you'll run into. And yet, we can fix this image just by choosing a command. Now even though it is so drab, it's quite obviously a full color image, but not to Photoshop. And that's because 99% of the time, Photoshop is seeing gray scale only luminance data. Starting with the darkest color is black and the whitest color is white. And at least 254 shades of grey in between. Now these luminous ranges have common names. The darkest stuff is known as the shadows. The…

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