Prime colors and color imaging
نویسندگان
چکیده
In modeling color vision, certain visible wavelengths have special significance. A growing body of scientific work shows that the wavelengths around 450nm, 540nm and 605nm, the so called prime-color (PC) wavelengths, are fundamental to color vision. Perhaps unsurprisingly, these same wavelengths are often discussed in the color imaging literature. Monitors that can display a large gamut of colors and are visually efficient have phosphor-primary peaks at the PC wavelengths. Color cameras that have peak sensitivities at the PC wavelengths have favorable color-balancing properties. Why are the PC wavelengths so important? This paper provides a start toward a mathematical theory to answer this question.
منابع مشابه
Spectral Estimation of Printed Colors Using a Scanner, Conventional Color Filters and applying backpropagation Neural Network
Reconstruction the spectral data of color samples using conventional color devices such as a digital camera or scanner is always of interest. Nowadays, multispectral imaging has introduced a feasible method to estimate the spectral reflectance of the images utilizing more than three-channel imaging. The goal of this study is to spectrally characterize a color scanner using a set of conventional...
متن کاملRecognition of Sequence of Print and Ink Strokes: Investigation the Effect of Handwriting Pressure, Hue of Ink, Printer and Paper Type
By introducing of digital techniques, forensic document examiners has been encouraged to work with better accuracy in non-destructive ways. The aim of this study was to present a non-destructive, accessible, economic (affordable), user friendly, portable, useful and easy technique for specifying the order of crossing lines of ink stroke and printed text. The intersections of LaserJet and In...
متن کاملTransforming reflectance spectra into Munsell color space by using prime colors.
Independent researchers have proved mathematically that, given a set of color-matching functions, there exists a unique set of three monochromatic spectral lights that optimizes luminous efficiency and color gamut. These lights are called prime colors. We present a method for transforming reflectance spectra into Munsell color space by using hypothetical absorbance curves based on Gaussian appr...
متن کاملPrime colors and the hues
Forthcoming in Review of Philosophy and Psychology Prime colors and the hues Wayne Wright Abstract: This paper argues that the distinctiveness of the Hering primary hues – red, green, blue, and yellow – is already evident at the retina. Basic features of spectral sensitivity provide a foundation for the development of unique hue perceptions and the hue categories of which they are focal example...
متن کاملCamera Design Using Locus of Unit Monochromats
The Maxwell-Ives criterion (MI) says that for color fidelity a camera’s spectral sensitivities must be linear combinations of those for the eye. W. A. Thornton found certain “prime color” (PC) wavelengths, with special importance for color vision. At CIC 6, M. H. Brill et al. spoke in favor of “cameras that have peak sensitivities at the PC wavelengths.” MI and PC are related ideas. MI implies ...
متن کامل