Spectral lightness rainbow colormap
Spectral lightness rainbow Quick post to share my replica of Ethan Montag ‘s Spectral lightness colormap from this paper. My version has a linear Lightness profile (Figure 1) that increases monotonically […]
Tag Archives: color map
Visualizing colormap artifacts
In Evaluate and compare colormaps, I have shown how to extract and display the lightness profile of a colormap using Python. I do this routinely with colormaps, but I realize […]
What your brain does with colours when you are not “looking” – part 2
In What your brain does with colours when you are not “looking”, part 1, I displayed some audio spectrogram data (courtesy of Giuliano Bernardi at the University of Leuven) using 5 different colormaps to render the amplitude […]
New Matlab isoluminant colormap for azimuth data
I recently added to my Matlab File Exchange function, Perceptually improved colormaps, a colormap for periodic data like azimuth or phase. I am going to briefly showcase it using data from my degree […]
Parula: a new Matlab colormap
Steve Eddins of the Matwork just published a post announcing a new Matlab colormap to replace Jet. It is called Parula (more to come on his blog about this intriguing name). […]
What your brain does with colours when you are not “looking” – part 1
When I published the last post of my series The rainbow is dead…long live the rainbow! there was a great discussion in the comments section with Giuliano Bernardi, a Ph.D. student at the University of […]
Visualize Mt St Helen with Python and a custom color palette
Evan Bianco of Agile Geoscience wrote a wonderful post on how to use python to import, manipulate, and display digital elevation data for Mt St Helens before and after the infamous […]
Convert color palettes to python matplotlib colormaps
This is a quick post to show you how to import my perceptual color palettes – or any other color palette – into Python and convert them into Matplotlib colormaps. We […]
