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Photoshop CS4's adjustment features offer unparalleled opportunities to correct and manipulate images. In Photoshop CS4: Image Adjustments in Depth, Jan Kabili explains how to use all the major Photoshop adjustment features. She shares the best techniques for adjusting image quality, and shows how to use the new Adjustments panel to streamline a photo correction workflow. Jan also demonstrates multiple ways to eliminate color casts, and explains how to use the new On-Image Curves control to adjust brightness and color. This course offers a detailed look at the techniques photographers and designers use to master image adjustments in Photoshop. Exercise files accompany the course.
The Selective Color adjustment was designed for use in a high-end print shop in order to control the amounts of process colors or CMYK colors in the primary colors in an image. But the still reason that you can't use the Selective Color adjustment to tweak the colors in your own photographs. I'm going to apply a Selective Color adjustment layer by going to the Adjustments panel and clicking the Selective Color icon. That adds this Selective Color adjustment layer in the Layers panel. Up here I have the controls for Selective Color. The first stop here is the Colors menu. If I select Reds here, then whatever changes I make to the cyan, magenta, yellow and black sliders will affect only the reds in the image. In other words these should affect only the Life Preserver and not the ocean behind.
So for example if I go to the Black slider and I drag that to the right, I'll be deepening the red and if I drag that slider to the left reducing the amount of black, I'll be moving toward pink. If I go somewhere in the middle, I've changed the reds to more of an orange. I might try adding some yellow and the other sliders all work the same way. Either adding or subtracting color from whichever color is listed here in the Colors menu. So if I wanted to change the color of the ocean and sky, I'll go to the Colors menu and I'll choose Blues. If I'd like to deepen the color of the ocean, I'll go to the Black slider and move it to the right. If I want to increase the amount of blue, I'll go to the Yellow slider because I know that blue is the opposite of yellow on the color wheel. So I'll drag that Yellow slider to the left, reducing the amount of yellow and adding some blue to the ocean and the sky.
Now to see where I started and where I ended up, I'll go down to the Previous State icon at the bottom of the Adjustments panel and I'll click and hold that. So you can see that I've changed both the reds in the image and the blues.
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