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new tutorial on displaying image data#163

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nicolaskruchten merged 12 commits intov4.3-docsfromimage
Nov 12, 2019
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emmanuelle
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The CI will be happy only after the release, but it gives an idea of how to useImage/imshow


### Display single-channel 2D image as grayscale

For a 2D image, `px.imshows` uses a colorscale to map scalar data to colors. The default colorscale is `gray`, ie grayscale images.
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nos onimshow


It is also possible to use the `go.Image` trace from the low-level `graph_objects` API in order to display image data. Note that `go.Image` only accepts multichannel images. For single images, use [`go.Heatmap`](https://plot.ly/python/heatmaps/).

Note that the `go.Image` trace is different from the `go.layout.Image` class, which can be used for [adding background images or logos to figures](./images/).
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let's change this link to/python/images


### Display multichannel image data with go.Image

It is also possible to use the `go.Image` trace from the low-level `graph_objects` API in order to display image data. Note that `go.Image` only accepts multichannel images. For single images, use [`go.Heatmap`](https://plot.ly/python/heatmaps/).
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note: it's most helpful to use links that start with/ rather thanhttps://plot.ly/ because that way in local dev mode you don't click on a link and end up on the prod site :)

@nicolaskruchtennicolaskruchten changed the base branch frommaster tov4.3-docsNovember 11, 2019 14:00
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Oh this one needs to be updated to track the latest changes toimshow

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yes, on my list for today

@nicolaskruchtennicolaskruchten merged commit46a3a33 intov4.3-docsNov 12, 2019
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