The Abney effect or the purity-on-hue effect describes the perceived hue shift that occurs when white light is added to a monochromatic light source. The...

William de Wiveleslie Abney KCB FRS FRSE (24 July 1843 – 3 December 1920) was an English astronomer, chemist, and photographer. Abney was born in Derby,...

being associated with the term "indigo" since that time. Because of the Abney effect, pinpointing indigo to a specific hue value in the HSV color wheel is...

Abney may refer to: Abney (surname), includes a list of people with the name Abney effect, a colour-related phenomenon Abney, Derbyshire, a village in...

fully saturated or achromatic stimuli. Opponent process Purkinje shift Abney effect Pridmore, Ralph W.; Melgosa, Manuel (10 April 2015). "All Effects of...

Bezold–Brücke hue shift: The hue of monochromatic light changes with luminance. Abney effect: The hue of monochromatic light changes with the addition of white light...

towards blue[clarification needed] when mixed with reds and oranges (see Abney effect). Another practice when darkening a color is to use its opposite, or...

Abney Park cemetery is one of the "Magnificent Seven" cemeteries in London, England. Abney Park in Stoke Newington in the London Borough of Hackney is...

rescue miners Sir William de Wiveleslie Abney (1843–1920), astronomer, chemist, photographer; described the Abney effect Sir Henry Royce (1863–1933), co-founder...

Fauser (1856–1938) Abney effect – William de Wiveleslie Abney Abrikosov lattice – Alexei Alexeyevich Abrikosov Aharonov–Bohm effect – Yakir Aharonov and...