Measurement of Macro-uniformity: Streaks, Bands, Mottle and Chromatic Variations

摘要

Macro-uniformity problems in an printed image are visible in the form of color variations which may be one-dimensional (streaks and bands) or two-dimensional (e.g., mottle). They may be limited to luminance variations or may include chromatic contributions as well. This paper examines issues related to quantification of the overall subjective impression of Macro-uniformity, and illustrates how several previously published measurements techniques can be combined to provide measures of overall Macro-uniformity.