From the course: Photoshop Masking and Compositing: Fundamentals

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Loading a selection from another image - Photoshop Tutorial

From the course: Photoshop Masking and Compositing: Fundamentals

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Loading a selection from another image

In this exercise we'll load an alpha channel from an entirely different image to select that wrench, and then we'll make the wrench glow. I've saved my progress as Blasting rays. psd, and notice that I also have opened an image called Wrench.jpg and I want you to keep an eye on his wrench as I switch between the images. Notice that Wrench.jpg contains a single channel and that channel serves as a mask that is exactly aligned with the wrench in the other image. So this image is the same physical size, the same number of pixels wide and the same number of pixels tall. And how in the world did I create this image? Well, as I always preparing this file for you, I went ahead and created an alpha channel for the wrench, and then I went ahead and saved it out as a new image, and you can copy a channel to a new image just by right-clicking on the channel. For example, in this case, I'm right- clicking on the eyes channel, I'll choose Duplicate Channel, and then you change the document setting…

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