The Histogram in Photoshop is your friend. I think of it as one of those super-smart friends who you don’t always understand, but is the first person you call on when you’re trying to accomplish something technical.
I’ve generally used the Histogram to evaluate exposure in my images, but Tim Grey’s new course Mastering Color Correction in Photoshop has opened up a whole new world of possibilities in my mind. In this free lesson, Tim shows you how to use the Histogram to your advantage by reading the individual channels as you evaluate and correct the colors in your images.
Don’t stop with this lesson, though — this course is full of great information for Photoshop users. Not only will you learn some basic color concepts, you’ll get tips for shifting the color range and balance in an image, toning down problem colors, improving skin tones, and more. I really got a lot out of this one, and I think you will too.