Grayscale-luminance converting polynomial function for digital images to determine Feu and Lav in a low-contrast artificial lit space

Chen, P; Wang, A; Wang, L; Wu, Y; Yu, J

Yu, J (通讯作者),Tianjin Univ, Sch Architecture, Tianjin Key Lab Architectural Phys & Environm Tec, 92 Weijin Rd, Tianjin 300072, Peoples R China.

LIGHTING RESEARCH & TECHNOLOGY, 2023; 55 (3): 258

Abstract

The evaluation of the spatial luminance coefficient, Feu, and average luminance, L-av, can improve the lighting quality from both subjective and objec......

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