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I was wondering if there were good resources or references to improve the accessibility of various kinds of data visualization (plots, charts, networks, tables, maps, etc.), for blind people or people with other vision impairment. For example, I'm already aware of tools to make data visualization friendlier to color-blind people.

Are there other tools or references similar to that? In particular, I'd be interested in references explaining how to write good alternative texts for people using screen readers.

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    $\begingroup$ Good question. A common term for your last part is "alt text", and a search does turn up a number of potentially interesting hits. $\endgroup$ Commented Jul 4, 2023 at 13:28

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I am thinking about this reference, which addresses the choice of color palette to make scientific publications accessible to people with colour-vision deficiency:

Crameri, F., Shephard, G. E., & Heron, P. J. (2020). The misuse of colour in science communication. Nature communications, 11(1), 5444.

Rainbow-like color maps, like Jet, should be avoided, as they have the same intensity in red and green. They have no uniformity (neither in color nor in luminosity) and can thus be ill interpreted. Other color palettes, like Batlow or the ones presented in Figure 2, should be favored.

EDIT Some other references:

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    $\begingroup$ Thanks! Could you point to any resources about accessibility for more severe vision impairments, like blindness, as J-J-J asked about? $\endgroup$
    – mkt
    Commented Jul 24, 2023 at 12:10
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    $\begingroup$ I just edited my answer, adding some other ressources $\endgroup$ Commented Jul 24, 2023 at 13:38
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    $\begingroup$ Merci Camille! The tactile graphics look very promising. $\endgroup$
    – J-J-J
    Commented Jul 24, 2023 at 16:35
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    $\begingroup$ Thanks for the additional refs $\endgroup$
    – mkt
    Commented Jul 25, 2023 at 5:48

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