Search results
Results from the WOW.Com Content Network
It was designed to be computed via simple formulas from the CIEXYZ space, but to be more perceptually uniform. Hunter named his coordinates L , a and b . Hunter Lab was a precursor to CIELAB , created in 1976 by the International Commission on Illumination (CIE), which named the coordinates for CIELAB as L* , a* , b* to distinguish them from ...
A uniform color space (UCS) is a color model that seeks to make the color-making attributes perceptually uniform, i.e. identical spatial distance between two colors equals identical amount of perceived color difference. A CAM under a fixed viewing condition results in a UCS; a UCS with a modeling of variable viewing conditions results in a CAM.
For uniform color spaces that already have a lightness component, the transformation only involves rearranging the two chroma values into colorfulness (C) and hue (h). CIELCh ab and CIELCh uv are cylindrical transformations of the CIELAB and CIELUV color spaces, respectively. The cylindrical coordinates C* (chroma, relative saturation) and h ...
A comparison between a typical normalized M cone's spectral sensitivity and the CIE 1931 luminosity function for a standard observer in photopic vision. In the CIE 1931 model, Y is the luminance, Z is quasi-equal to blue (of CIE RGB), and X is a mix of the three CIE RGB curves chosen to be nonnegative (see § Definition of the CIE XYZ color space).
Changed colormap to be perceptually uniform to accurately portray z-axis values. Rescaled z-axis to be proportional to the x- and y-axes. Added a legend for the colormap. 18:19, 27 September 2014: 512 × 384 (1.4 MB) Krishnavedala
The International Commission on Illumination (CIE) developed the XYZ model for describing the colors of light spectra in 1931, but its goal was to match human visual metamerism, rather than to be perceptually uniform, geometrically. In the 1960s and 1970s, attempts were made to transform XYZ colors into a more relevant geometry, influenced by ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
CIELCh uv is a perceptually uniform color space consisting of lightness, chroma and hue coordinates. It is derived from the CIELUV space, usually based on the 2° observer and the standard Illuminant D65 representing daylight. h uv is an angle that is normally given in degrees. L* is in the range 0 to +100.