Color bars in fsleyes

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1

Hello everyone,
I would like to ask a very basic question, which for some reason I can’t find the answer to.

Is there a way to do the following using fsleyes gui or fslmaths:

  1. change the color bars definitions that are provided by fsleyes (e.g., set the value in which blue change to red, etc.).
  2. get a picture of these color bars for the goal of presenting them in a figure.

Thank you very much for your help

2

For the second question, in the folder named $FSLDIR/etc/luts, there is a file named colourbar.nii.gz. I usually load this file in fsleyes, choose the colormap and save the screenshot.

3

You can edit, add or remove the fsleyes colormaps. These are simple text files with the extension .cmap in the folder
/fsleyes/assets/colourmaps/
Each file has three columns for the red, green and blue component intensity from 0 to 1
The colors are interpolated between the rows.

You may want to try out these luminance adjusted colormaps.

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