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9.7 RESIZING IMAGES | ||
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The size of an image is measured by the number of pixels it contains. To reduce an image, you reduce the number of pixels in it. To enlarge and image, you add pixels. Both of these processes are referred to as resizing the image. Reducing an image almost always has less affect on its appearance than does enlarging one. This is because, enlarging requires the program to add pixels.To do so, the computer analyzes adjoining pixels to determine the color of any new ones it inserts. Normally, you can double the size of an image without effects showing. However, trial and error is usually the only way to see because images vary so much.
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200 x 133 pixels |
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100 x 67 pixels |