Hence, the Macintosh can depict shades of gray by mixing black and white pixels in different ratios. If the ratio is about 50-50, you see a middle-gray. If black pixels predominate, ... Most newspaper photos use halftones with 65 or 85 lines of dots per inch. You can see the dots ... commercially in 1946. It simply 18 Chapter 2.
Title | : | Compute's quick & easy guide to desktop publishing |
Author | : | Dan McNeill |
Publisher | : | Compute - 1987-09 |
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