MATHEMATICAL PRINCIPLES OF DIGITAL HALFTONING
ITMO Univresity, 197101, Saint-Petersburg, Russian Federation; Professor
E. A. Shefer
St. Petersburg State University of Technology and Design, Department of Automated Printery Equipment; Engineer
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Abstract. The problem of replacement of continuously varying light flow reflected from absorbing filter on a substrate by two-level signal is considered. The problem is reduced to pulse-width modulation of two-dimensional signal. Various methods of signal conversion to binary raster data are analyzed.
Keywords:
digital image processing, halftoning, transformation of spectra.
