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Photoshop CS6 One-on-One: Fundamentals is a concise and focused introduction to the key features in Photoshop, presented by long-time lynda.com author and Adobe veteran Deke McClelland. This course covers the image editing process from the very beginning and progresses through the concepts and techniques that every photographer or graphic designer should know. Deke explains digital imaging fundamentals, such as resolution vs. size and the effects of downsampling. He explains how to use layers to edit an image nondestructively and organize those edits in an easy-to-read way, and introduces techniques such as cropping, adjusting brightness and contrast, correcting and changing color, and retouching and healing images. These lessons distill the vast assortment of tools and options to a refined set of skills that will get you working inside Photoshop with confidence.
In this chapter, we'll take our first look at one of Photoshop's most powerful image creation tools, layers. Layers do not occur spontaneously. In fact, every digital photograph or scanned artwork begins life as a flat no-layer image file. In Photoshop, this flat image is called the Background, and it's locked inside the four walls of the always rectangular canvas. But layers are easy to create.
When you so much as move one image into another, the moved image becomes a floating layer. This means that it can be any shape and size inside the rectangular file. This also makes it and any other layers in the document, all together independent of each other. You can move, scale and rotate one layer without adversely affecting another, making for a highly flexible penalty- free editing environment, and you can introduce transparency.
So whereas in a flat image, a pixel maybe one of several million colors, in a layer, it may also be one of several hundred levels of translucency. This permits you to see through one layer to another. Plus, you can blend layers together to create interactions between images that were simply not possible before the digital age. In Photoshop, a document that contains layers is said to be a layered composition or comp for short. In this chapter, I'll show you how to create one such comp from beginning to end.
Welcome to the power of layers.
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