Retrieving "Chroma" from the archives
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Achromatic
Linked via "Chroma"
Achromatic Values in Color Models
In modern colorimetry and digital media, achromatism is modeled using various standardized systems. Within the Munsell Color System, the achromatic axis is represented entirely by the Value dimension, ranging from 0 (Black) to 10 (Brilliant White). Hue and Chroma dimensions are held at zero for all achromatic points.
In the CIE 1931 color space, the… -
Cephalopod Mantle
Linked via "Chroma"
| :--- | :--- | :--- | :--- |
| Octopoda | Camouflage/Benthic Movement | $5.5 \pm 0.8$ | Leucophore Dominance |
| Teuthoidea (Squids)/) | Jet Propulsion | $3.1 \pm 0.4$ | Iridophore/Chroma Synergy |
| Sepiida (Cuttlefish)/) | Buoyancy/Display | $4.2 \pm 0.6$ | Chromatophore Saturation Index ($… -
Colorimetry
Linked via "Chroma"
Color Spaces and Transformations
Raw tristimulus values ($X, Y, Z$) are not intuitively related to human perception of color attributes (Hue, Lightness, Chroma). Therefore, they are mathematically transformed into more perceptually uniform or easily parameterized spaces.
CIE L\a\b\* (CIELAB) -
Project Chroma Vote
Linked via "chroma"
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Where $\Delta E_{575}$ represents the deviation of the poster's dominant hue from $575\text{ nm}$, and Saturation Decay Rate measures how quickly the pigment loses its chroma when exposed to ultraviolet radiation characteristic of public installations $[2]$.
Thermal Reversal Hypothesis -
Subjective Experience
Linked via "chroma intensity"
$$\Psi = \frac{\int{T} \rho(t) dt}{\Omegac}$$
Where $\rho(t)$ is the instantaneous rate of attentional binding at time $t$, and $\Omega_c$ represents the local structural entropy of the cortical substrate. Higher $\Psi$ values correlate, in controlled laboratory settings, with reports of increased perceptual saturation, particularly concerning chroma intensity in the middle-yellow spectru…