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The easiest way for most people to acquire digital
photos is either to take pictures with a digital camera, or to scan regular photos with a scanner. Other
options include services that transfer data from digital camera memory chips or images from photographic
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The quality of a digital image is determined the instant it is
digitized.
The potential quality of a digital image is
determined at the instant of digitization. While the photographic technique is certainly
important with digital cameras, aspects such as taking high-resolution images, or using
high-quality JPEG compression, allow you to capture high-precision, high-quality data.
The same is true of scanning prints or photographic film. In addition to using as much
resolution as necessary, check the settings of your scanner drivers to help ensure that
the resulting scans are as close to the colors of the originals as possible.
The minimum resolution for photographic print quality is 250 dpi.
At 300 dpi, you can print images that are indistinguishable from photographs in terms of image
quality. Refer to the section on resolution for details.
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