Half-tone image generator using white noise source

Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry

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Details

358465, 358455, H04N 140

Patent

active

050069381

ABSTRACT:
A half-tone binarization generator that produces high-quality half-tone binarization images by converting multilevel brightness information into sets of black and white bitonal data by adding noise to the multilevel brightness information and using a thresholding technique.

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patent: 4908875 (1990-03-01), Assael et al.
patent: 4912569 (1990-03-01), Petilli
patent: 4918543 (1990-04-01), Petilli

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