Apple - Aperture Digital Photography Fundamentals

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The quality of the print is determined by the combination of two factors: Â Image file resolution: The resolution of the image file is determined by the number of pixels in the image and the bit depth of the pixels themselves. Obviously, the more pixels the image file has, the more information it’s capable of displaying. However, along with the number of pixels, the bit depth plays a large part as well. The greater the bit depth, the more colors a pixel is capable of displaying. For more information on bit depth, see “Learning About Bit Depth” on page 38.

However, if the bit depth of your pixels does not allow this level of precision, the answer would have to be rounded to either 2 or 1. In either direction, this causes a quantization error. This is particularly noticeable when you try to return to the original value. Without the precision of floating point, you’re left with 1 x 2 = 2 or 2 x 2 = 4. Neither calculation is capable of returning the original value of 3. As you can see, this can become problematic when adjustments require a series of calculations and each subsequent value is inaccurate.

0 to approve jobs for press production onscreen without the need for paper proofs, providing significant time and cost savings for print professionals. Certified systems are capable of producing proofs visually identical to the SWOP Certified Press Proof as defined in ANSI CGATS TR 001, Graphic Technology. Integrated Color Solutions, Inc. and Kodak Polychrome Graphics chose Apple flatpanel displays because they are capable of providing the luminance and color gamut necessary to create an onscreen proof that has the same brightness and feel as paper.

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