Empirical and probability models of the spectral reflectance for the frequency modulated halftoning imaging

Abstract Based on the microstructure of FM halftoning image and the model of a light scattering in the substrate, the spectral reflectance model of FM halftone printed image based on Murray–Davies equation is studied. Taking into account the influence of the light scattering in substrate, we set up the relationship between the reflection and transmission and the return probabilities of light under the dots or between the dots. The empirical and probability models of the spectral reflectance of the bare areas, the dot areas and the frequency modulation screening image as the functions of the number density of the frequency modulation ink dot in the unit area gridding-cell and the area of the dot are developed.

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