Extended Wien and Planck loci

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In colour science we are familiar with the Planckian locus, a curve in chromaticity space that is indexed by the temperature T of a blackbody radiator, that approximately delineates the colours of typical lights. In the CIE chromaticity diagram the reddest (lowest-T) light intersects the Spectral locus at 830 nm; as T rises, the lights become progressively orange, yellow, white and blue with the bluest light being defined by an infinite colour temperature. Interestingly the bluest blue Planckian chromaticity is far from the spectral locus. The Wien locus is parameterised by a simpler equation than Planck and runs almost parallel with the Planckian locus.
Original languageEnglish
Title of host publicationComputational Color Imaging
Subtitle of host publication8th International Workshop, CCIW 2024, Milan, Italy, September 25–27, 2024, Proceedings
EditorsRaimondo Schettini, Alain Trémeau, Shoji Tominaga, Simone Bianco, Marco Buzzelli
PublisherSpringer
Pages22-35
Number of pages14
ISBN (Electronic)978-3-031-72845-7
ISBN (Print)978-3-031-72844-0
DOIs
Publication statusPublished - 25 Sept 2024

Publication series

NameLecture Notes in Computer Science

Keywords

  • Color of negative temperature
  • Planckian Locus
  • Wien Locus

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