Abstract

Metamer mismatching is a phenomenon where two objects that are colorimetrically indistinguishable under one lighting condition become distinguishable under another one. Due to the unavailability of spectral information, metamer mismatching introduces an inherent uncertainty into cameras’ color reproduction. To investigate the degree of image quality degradation by the metamer mismatching, a large spectral reflectance database was compiled in this study to search the object-color metamers sets of the spectra in hyperspectral images. Then, metamer-degraded images were constructed and compared with the ground truth images by directional statistics-based color similarity index image quality assessment metrics to evaluate the perceptual image degradation. The results indicate that the object-color metamer mismatching has only little impact on the image quality degradation, whereas the inappropriate selection of color correction matrices involved with the illumination metamerism is the primary factor for the accuracy decrease in the digital camera color reproduction.

© 2018 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Perceptual analysis of distance measures for color constancy algorithms

Arjan Gijsenij, Theo Gevers, and Marcel P. Lucassen
J. Opt. Soc. Am. A 26(10) 2243-2256 (2009)

Color calibration of an RGB camera mounted in front of a microscope with strong color distortion

Renée Charrière, Mathieu Hébert, Alain Trémeau, and Nathalie Destouches
Appl. Opt. 52(21) 5262-5271 (2013)

Updated version of an interim connection space LabPQR for spectral color reproduction: LabLab

Qian Cao, Xiaoxia Wan, Junfeng Li, and Jingxing Liang
J. Opt. Soc. Am. A 33(9) 1860-1871 (2016)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (9)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (13)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription