Electronic printing method

作者: William T. Plummer

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摘要: An electronic printing method by which originals are photographically reproduced exposing high-contrast copy material with an intensity modulated illumination source that coarsely scans the original while is sharply imaged a well-cor­rected optical system. The to compensate for original's tonal qualities and electronically shapes response of enhance reproduction. imaging system in conjunction assures high reproduction detail. enhances sharp­ness reduces time, memory computational needs otherwise required copies comparable quality.