Students' text-book of color, or, Modern chromatics : with applications to art and industry (1881)
Rood, Ogden N. (Ogden Nicholas), 1831-1902 · New York : D. Appleton · leaf 44
hite an equality appears to beestablished, we conclude that the luminosity of our red sur-face is twenty-five per cent, of that of the white paper. This * American Journal of Science and Arts, February, 1878.f See Maxwells Disks, chapter x. THE CONSTANTS OF COLOUR. 35 is of course based on the… … Fig 7.—Coloured Disk, with Small Black-and-WhiteDisk. IIP ^llillP^ White Disk in Rotation. cent, of white light; to meet this a correction was intro-duced, and a series of measurements made, some of the moreimportant of which are given in the following table : Luminosity. White paper • 100…
Color · Painting · Color in art
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