CVD-MET: an image difference metric designed for analysis of color vision deficiency aids Muñoz Postigo, J. Valero Benito, Eva María Martínez Domingo, Miguel Ángel Gómez Robledo, Luis Huertas Roa, Rafael Hernández Andrés, Javier Color vision deficiency (CVD) has gained in relevance in the last decade, with a surge of proposals for aid systems that aim to improve the color discrimination capabilities of CVD subjects. This paper focuses on the proposal of a new metric called CVD-MET, that can evaluate the efficiency and naturalness of these systems through a set of images using a simulation of the subject’s vision. In the simulation, the effect of chromatic adaptation is introduced via CIECAM02, which is relevant for the evaluation of passive aids (color filters). To demonstrate the potential of the CVD-MET, an evaluation of a representative set of passive and active aids is carried out both with conventional image quality metrics and with CVD-MET. The results suggest that the active aids (recoloration algorithms) are in general more efficient and produce more natural images, although the changes that are introduced do not shift the CVD’s perception of the scene towards the normal observer’s perception. 2022-11-03T11:52:43Z 2022-11-03T11:52:43Z 2022-09-12 journal article J. Muñoz-Postigo... [et al.]. "CVD-MET: an image difference metric designed for analysis of color vision deficiency aids," Opt. Express 30, 34665-34683 (2022). [https://doi.org/10.1364/OE.456346] https://hdl.handle.net/10481/77737 10.1364/OE.456346 eng http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional Optical Society of America