UniformBicone

Perceptually uniform color maps

Introduction

This library contains c++ implementations of perceptually uniform color maps for ramps, cycles, disks, spheres, and balls with a python wrapper module. Ramp and cycle color maps are based on the excellent paper:

Kovesi, Peter. "Good colour maps: How to design them." arXiv:1509.03700 [cs.GR] 2015 (2015).

Disk, sphere, and ball color maps are based on:

[submitted paper](link to paper)

I was never able to get this work accepted for publication but have uploaded the draft manuscript, please consider citing this repository if you use it in a publication. If you use the work for PLM also consider Jin, Ke-Wie and De Graef, Marc. "c-Axis orientation determination of alpha-titanium using Computational Polarized Light Microscopy." Material Characterization 167 (2020)

Colormaps

Ramps

Name	Legend
gray
fire
ocean
ice
div

Cyclic

Name	Legend
gray
four
six
div

Disk

Name	Legend	Legend (white center)
four
six

Inversion Symmetry / Periodic Boundaries

Inversion symmetry for sphere / ball maps can be achieved by either doubling the polar or azimuthal angle. Either can be applied to disk maps, but polar doubling only provides periodic boundaires for the disk, not inversion symmetry.

Polar Angle	Azimuthal Angle

Disk Test Singal Animation