matplotlib2imarisLUT.py

# Export your favorite Matplotlib colormap to Imaris look-up table (.pal file)
# Authors: ChatGPT and Nikita Vladimirov
# License: GPL3
import matplotlib.cm as cm
cmap = cm.get_cmap('plasma')
output_file = './plasma_palette_8bit.pal'
with open(output_file, 'w') as f:
    # Write the RGB values of each color in the colormap as text strings
    for i in range(256):
        rgba = cmap(i)
        rgb = [int(x * 255) for x in rgba[:3]]
        f.write(f'{rgb[0]:.3f} {rgb[1]:.3f} {rgb[2]:.3f}\n')