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halftone 音标拼音: [h'æft,on] n. 半音,网板,中间色 半音,网板,中间色 half-tone 半色调 半音 halftone n 1: a print obtained from photoengraving 2: an engraving used to reproduce an illustration [synonym: {halftone}, {halftone engraving}, {photoengraving}] Half tone \Half tone\, or Half-tone \Half"-tone`\, n. 1. (Fine Arts) An intermediate or middle tone in a painting, engraving, photograph, etc.; a middle tint, neither very dark nor very light. [Webster 1913 Suppl.] 2. (Music) A half step. [Webster 1913 Suppl.] 3. A print obtained by the half-tone photo-engraving process. [WordNet sense 1] [PJC] 4. the etched plate used to reproduce a half-tone illustration. [WordNet sense 4] Syn: halftone engraving, photoengraving. [WordNet 1.5] Half-tone \Half"-tone`\ (h[aum]f"t[=o]n`), a. Having, consisting of, or pertaining to, half tones; specif. (Photo-engraving), pertaining to or designating plates, processes, or the pictures made by them, in which gradation of tone in the photograph is reproduced by a graduated system of dotted and checkered spots, usually nearly invisible to the unaided eye, produced by the interposition between the camera and the object of a screen. The name alludes to the fact that this process was the first that was practically successful in reproducing the half tones of the photograph. [Webster 1913 Suppl.] 58 Moby Thesaurus words for "halftone": Maxwell triangle, Munsell scale, chromatic circle, chromatic spectrum, chromaticity diagram, color circle, color cycle, color index, color mixture curve, color solid, color spectrum, color system, color triangle, complementary color, consecutive intervals, degree, demitint, diapason, diatessaron, diatonic interval, diatonic semitone, enharmonic diesis, enharmonic interval, fifth, fourth, full color, fundamental colors, half step, half tint, hue cycle, interval, less semitone, melodic interval, metamer, monochrome, note, octave, parallel octaves, primary, primary color, pure color, second, secondary, secondary color, semitone, seventh, sixth, solar spectrum, spectral color, spectrum, spectrum color, step, tertiary, tertiary color, third, tone, unison interval, whole step of a single shade but varying size to simulate the different shades of grey. {Laser printers} that cannot print different sized dots, halftones are produced by varying the numbers of dots in a given area. This process is also used to produce a black and white version of a colour original using shades of grey in place of colours. See also {device independent bitmap}. (1996-09-20)
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