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Title: FIX: make_image should not modify original array by rcomer · Pull Request #29892 · matplotlib/matplotlib · GitHub

Open Graph Title: FIX: make_image should not modify original array by rcomer · Pull Request #29892 · matplotlib/matplotlib

X Title: FIX: make_image should not modify original array by rcomer · Pull Request #29892 · matplotlib/matplotlib

Description: PR summary Fixes #29891. The problem is that we divide the RGB part of the array by its alpha on each draw. The simple fix is to make a copy but I assume for efficiency we should only copy when necessary. If we didn't start with RGBA, we already made a copy If alpha was an array, we already made a copy If the alpha channel is one everywhere, it does not matter PR checklist "closes #0000" is in the body of the PR description to link the related issue new and changed code is tested [n/a] Plotting related features are demonstrated in an example [n/a] New Features and API Changes are noted with a directive and release note [n/a] Documentation complies with general and docstring guidelines

Open Graph Description: PR summary Fixes #29891. The problem is that we divide the RGB part of the array by its alpha on each draw. The simple fix is to make a copy but I assume for efficiency we should only copy when ...

X Description: PR summary Fixes #29891. The problem is that we divide the RGB part of the array by its alpha on each draw. The simple fix is to make a copy but I assume for efficiency we should only copy when ...

Opengraph URL: https://github.com/matplotlib/matplotlib/pull/29892

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og:image:altPR summary Fixes #29891. The problem is that we divide the RGB part of the array by its alpha on each draw. The simple fix is to make a copy but I assume for efficiency we should only copy when ...
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507f8a4 FIX: make_image should not modify original array rcomer Apr 9, 2025 https://github.com/matplotlib/matplotlib/pull/29892/commits/507f8a430e4cdb1048d6b7f7cddcbbb7ead60ec3
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