Lesson A: The Color Wheel
Note the brightly colored figure here. Knowing the relationships among these primary colors will allow you to evaluate images and make whatever adjustments you need to.
Additive Primaries
I’ve featured the big three, the additive primaries, with white letters in the figure: R, G, and B, for red, green, and blue. Any color can be made from these three colors of light. Yellow, for example, is the combination of red and green light: their sum. Add all three together and you get white. Each image you open has three color channels holding its red, green, and blue data.
Complementary Colors
Photoshop’s color adjustments ...
Get Adobe Photoshop now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
