What is Printed halftone?
Printed halftone meaning in Digital terms is Most photographs, paintings, or similar pictorial works reproduced in books, magazines and newspapers are printed as halftones. In a halftone, the continuous tones of the picture being reproduced are broken into a series of equally spaced dots of varying size, printed with only one color of ink. The outcome exploits an optical illusion: the tiny halftone dots are blended into smooth tones by the human eye. For color reproduction, multiple halftoned printing plates are created. In the four-color process, there are four plates: cyan, yellow, magenta, and black (CYMK). Inks in these colors are applied to the paper in separate passes in a printing press. Roughly speaking, the more dots or lines per inch (dpi, lpi) in the halftone, the greater the clarity on the printed page. The typical resolution for "newspaper quality" is 85 dpi/lpi; for higher quality printing 85-185 (or even more) dpi/lpi may be used. From digital image to halftone. What level of resolution is needed in a digital image file to achieve good results when halftoning? To answer this question, most commentators speak in terms of output resolution. For example, the valuable UPDIG recommendations for photographers reports that "resolutions of 1.3