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Title: Allow array alpha for imshow by tillahoffmann · Pull Request #8183 · matplotlib/matplotlib · GitHub

Open Graph Title: Allow array alpha for imshow by tillahoffmann · Pull Request #8183 · matplotlib/matplotlib

X Title: Allow array alpha for imshow by tillahoffmann · Pull Request #8183 · matplotlib/matplotlib

Description: matplotlib: plotting with Python. Contribute to matplotlib/matplotlib development by creating an account on GitHub.

Open Graph Description: This PR allows the alpha argument of imshow to be an array with shape matching the image to support pixel-by-pixel opacity.

X Description: This PR allows the alpha argument of imshow to be an array with shape matching the image to support pixel-by-pixel opacity.

Opengraph URL: https://github.com/matplotlib/matplotlib/pull/8183

X: @github

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Domain: github.com

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Remove unnecessary logic branch.https://github.com/matplotlib/matplotlib/pull/8183/commits/8916fa91f71750d5ed6453802e442d414c611b9e
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Only restore alpha channel if _array_alpha is given.https://github.com/matplotlib/matplotlib/pull/8183/commits/c9c96abc21dfe71b27761d31a96ca68c148d85f7
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Add test for array alpha.https://github.com/matplotlib/matplotlib/pull/8183/commits/efc8b744e87916e8f65c9d4f9829ed8eb94d2b48
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Support pixel-by-pixel alpha in imshow. #14889 https://github.com/matplotlib/matplotlib/pull/14889
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