From the course: Photoshop: Creative Lab Color
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Adjusting contrast with a curve - Photoshop Tutorial
From the course: Photoshop: Creative Lab Color
Adjusting contrast with a curve
- [Instructor] What happens when good L channel inversions go bad? Well, not really bad. But suppose you invert the L channel and not only does a white background go black but so do the flowers on the white background or the other things you have on the white background. This is a pretty common scenario and there are several good ways to resolve the problem. That will help those bad L channel inversions straighten up and fly right. Check out this light box composition consisting of a central row of two anemones, a central tulip, and framed by two rows of Queen Anne's lace. As you've seen earlier in this chapter, it's easy to invert a light box image on white to a black background. But I foresee trouble here. So I'd like to set this image up for success. My strategy is to first invert the image and put it on a black background and then to apply successive curves to the lightness channel to adjust the contrast so the flowers have not been darkened unattractively by the inversion. Let's…
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