Abstract
Research on secondary colour optical dot gain model in electrostatic digital colour printings
Highlights
Screening dot is the basic unit to form printing tone level and to reproduce colour in printing process [1, 2]
Tone level reproduction, and image texture reproduction are determined by the screening properties in colour printing [3, 4]
What we should note is that dot gain has a great effect on colour reproduction in colour printing
Summary
Screening dot is the basic unit to form printing tone level and to reproduce colour in printing process [1, 2]. It is the basic unit of halftone image. Tone level reproduction, and image texture reproduction are determined by the screening properties in colour printing [3, 4]. Dot gain causes the loss of contrast, tinting of shadow tone area, and the sudden change of tone level or colour [8, 9]. Dot gain within a control to a certain extent is good to colour reproduction
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