This is the first of a two-part tutorial on color maps. My goal is to share the methods I developed (Niccoli, 2012; Niccoli and Lynch, 2012; Niccoli, 2013) to evaluate default color maps and choose more perceptual alternatives (Part 1) and to make your own map based on perceptual principles (Part 2). For both parts, there will be an accompanying IPython Notebook with extended examples and analyses and open data. You can find the notebooks and code at github.com/seg/tutorials.

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