Electronic halftone screening

摘要: An electronic signal representing the density of pixels in a scanned line an original image and containing whole number multiples single halftone screen partial dot values plus predetermined extension parameter is electronically halftoned by comparing pictorial with to form image. function represented values, produces automatically rotated at angle when input, document set equal multiple partial-dot parameter. Under these conditions, input screened into cells approximating parallelogram having said angle. The need only be circularly buffered through comparator. No indexing or shifting required.