half-tone
半色調
half-tone
半色調 半音
Half tone, or 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.
2. Music A half step.
Half-tone 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.
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halftone
n 1: a print obtained from photoengraving
2: an engraving used to reproduce an illustration [syn: halftone
engraving, photoengraving]