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Working with Vector Art

There are two types of computer graphics: raster images and vector drawings.

Raster Images

Raster images, the primary domain of Photoshop, are dependent on a grid of square pixels (in broadcast media, the pixels are non-square, but the principle is the same). Each raster image is defined by its resolution, or the number of pixels occurring within every inch of the grid. Thus raster images are resolution dependent, meaning they look best when displayed on a monitor or other device that fits the same number of pixels within an inch.


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