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Step 3

We can do all the color adjustments using the Curves tool. The Curves tool makes it easy and eliminates the need of using several adjustment layers. First, select Green from the Channel drop down menu. Then, move the two points to the middle left and middle right as shown in the image below. Don't click OK yet!

Step 4

Now select Blue from the Channel drop down menu and position the curve like the image below. Click OK when done.

Here's what your image should look like;  a cyan and orange pop-art effect.