Segments

We take the case study of a car image that needs a paint color change. Without using Lab Color, you might have to use Channel Mixers which may take a long time.

Another example includes a production warehouse that needs correction to remove a color cast. Dan uses curves in an adjustment layer use separate channels for tweaks.

LAB is a color space that separates color and contrast completely. This is different from RGB or CMYK, where you'll be changing both color and contrast at the same time. LAB computes colors nicely and will, but the disadvantage is that it's difficult to be precise. Dan remedies this by working with color and contrast in RGB first until it's acceptable, then does fine tuning of the image in LAB.

Dan uses the same image of a large cat and shows how to examine and monitor color. In adjustments, he changes individual color channels to get the right colors. He creates a new layer that has a snapshot of the changes, then fixes contrast.