3. Acquiring Digital Images

While Photoshop is a great tool for a lot of tasks, most of them center around the sizing, manipulation, and processing of digital images. While 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 will allow you to adjust those pixels to better match your needs.

Image

Pixels in detail: When we zoom into the image at 1600% magnification, the pixels are very easy to see. You can open the photo Car in Mirror.tif from the Chapter 3 folder and use the Zoom tool (Z) to magnify the image.

PHOTO BY JIM BALL

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