roseus

'roseus' colormap used in audacity for improved spectrum visualization

c = roseus(M) returns an M-by-3 matrix containing a 'roseus' colormap.

roseus, by itself, uses the length as the current figure's colormap.

It works like the other colormaps: hot, hsv, parula, gray,...

Adjust the color limits of the spectrum image to mimic the audacity spectrum.

Usage examples:

>>c = roseus(15); % returns a 15x3 'roseus' colormap

>>c = roseus; % returns a Mx3 colormap, M is the length of the current figure's colormap or 64

>>colormap(roseus); % sets the 'roseus' colormap on the current figure