SU-GG-I-50: When Should We Recalibrate the Grayscale Standard Display Function in Different Ambient Lighting Conditions?

Matsuyama, Miwa; Takahashi, K.; Akamine, Hiroshi; Awamoto, Shinichi; Nakamura, Yasuhiko; Hashimoto, Noriyuki; Morishita, Junji

doi:10.1118/1.3468083

Cited by 1 publication

(1 citation statement)

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“…The related works mainly study in two directions. One is the method to identify and distinguish the grayscale from a picture [16][17][18][19], and the other is an improvement on monitor (mostly LCD) performance compared with GSDF based on hardware or PLC [20][21][22][23]. Most research uses grayscale as a relative parameter only, without focusing on the standardization of grayscale.…”

Section: Introductionmentioning

confidence: 99%

A Digital Grayscale Generation Equipment for Image Display Standardization

Jiang

Liu

et al. 2020

Applied Sciences

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The standardization of grayscale display is essentially significant for image signal communication, transmission, and terminal reading. The key step of this standardization is establishing a traceable equipment of grayscale. As a relative value, grayscale is transferred to two different absolute values to satisfy different traceability methods, including optical density for hardcopy image and luminance for softcopy. For luminance, a generation equipment is designed to build the relationship between luminance and grayscale. In this work, novel equipment is established using digital light processing (DLP) by time-frequency modulation, and the corresponding uncertainty is analyzed. The experiment result shows that this digital equipment builds the relationship between grayscale and luminance in the range of 0.16-4000 cd/m2. It enables traceable measurement of grayscale to luminance on this equipment with high accuracy and can provide a standardized reference for the display of grayscale images in the fields of medicine, remote sensing, non-destructive testing, etc.

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