cubehelix: Cube Helix colour palette

In graphx: Graphics Routines for Scientific Research

Description

Generate the Cube Helix colour palette, designed to appropriately display of intensity images, as the brightness increases monotonically when displayed in greyscale.

Usage

cubehelix(n, r = 1.5, hue = 1, gamma = 1, rev = FALSE)

Arguments

n	integer number of colours in the scale
r	real number specifying the number of rotations of the helix over the scale
hue	non-negative number specifying the colour intensity from grey (0) to normal (1) and over-saturated (>1)
gamma	positive number specifying the relative importance of low vs high values
rev	logical flag indicating whether the ordering of the colors should be reversed

Details

This scheme was published by Green, D. A., 2011, "A colour scheme for the display of astronomical intensity images." Bulletin of the Astronomical Society of India, 39, 289.

Value

Returns an n-vector of RGB colour strings.

Author(s)

Danail Obreschkow

graphx documentation built on Feb. 3, 2022, 5:07 p.m.