Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.
APA4ort.xyz Knowledge Graph. (2026). To compute lightness, illumination is not estimated, it is held constant.. Retrieved May 24, 2026, from https://4ort.xyz/entity/to-compute-lightness-illumination-is-not-estimated-it-is-held-constant
MLA“To compute lightness, illumination is not estimated, it is held constant..” 4ort.xyz Knowledge Graph, 4ort.xyz, 24 May. 2026, https://4ort.xyz/entity/to-compute-lightness-illumination-is-not-estimated-it-is-held-constant.
BibTeX@misc{4ortxyz_to-compute-lightness-illumination-is-not-estimated-it-is-held-constant_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{To compute lightness, illumination is not estimated, it is held constant.}}, year = {2026}, url = {https://4ort.xyz/entity/to-compute-lightness-illumination-is-not-estimated-it-is-held-constant}, note = {Accessed: 2026-05-24}}
LLM promptAccording to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): To compute lightness, illumination is not estimated, it is held constant. — https://4ort.xyz/entity/to-compute-lightness-illumination-is-not-estimated-it-is-held-constant (retrieved 2026-05-24)
