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Understanding Adobe Photoshop CS4: The Essential Techniques for Imaging Professionals by Richard Harrington

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Chapter 3. Acquiring Digital Images

While Photoshop is a great tool for many tasks, most of them center on the sizing, manipulation, and processing of digital images. Even though their contents may vary, all digital images are essentially the same: They are composed of pixels that contain color and luminance information. Photoshop’s powerful features allow you to adjust those pixels to better match your needs.

And while the destination may be the same, the path your digital images take to get inside Photoshop will vary. Some may start out as digital images acquired with a still camera, whereas others may be loaded via a scanner. You might also search online resources to find specialized images. Let’s take a look at the many ways to acquire your ...

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