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Characteristic measurements for the qualification of reflection scanners in the evaluation of image quality attributes

The claimed specifications of reflection scanners make their utilization for analytic measurement very tempting. This paper summarizes an effort by Working Group 4 of ISO/IEC JTC-1 SC28 to develop evaluation methods that can be used to characterize the performance of reflection scanners with the goal of developing a sufficient characterization set to serve as evaluation methods in conformance testing for future image quality standards. Promising evaluation methods for tone-scale, spatial and temporal uniformity, spatial distortion, SNR, dynamic range and flare characteristics will be described.