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Title: Use indexed color for PNG images in PDF files when possible by mpetroff · Pull Request #17895 · matplotlib/matplotlib · GitHub

Open Graph Title: Use indexed color for PNG images in PDF files when possible by mpetroff · Pull Request #17895 · matplotlib/matplotlib

X Title: Use indexed color for PNG images in PDF files when possible by mpetroff · Pull Request #17895 · matplotlib/matplotlib

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

Open Graph Description: PR Summary This pull requests modifies the PDF backend to use indexed color for PNG images in PDF files when possible. When PNG images have 256 colors or fewer, it converts them to indexed color be...

X Description: PR Summary This pull requests modifies the PDF backend to use indexed color for PNG images in PDF files when possible. When PNG images have 256 colors or fewer, it converts them to indexed color be...

Opengraph URL: https://github.com/matplotlib/matplotlib/pull/17895

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og:image:altPR Summary This pull requests modifies the PDF backend to use indexed color for PNG images in PDF files when possible. When PNG images have 256 colors or fewer, it converts them to indexed color be...
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Use indexed color for PNG images in PDF files when possible.https://github.com/matplotlib/matplotlib/pull/17895/commits/40132e7255809e2c3b92dedfab2e571817da245a
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Don't use indexed color for grayscale.https://github.com/matplotlib/matplotlib/pull/17895/commits/eb74d35cebcb3ee95b957a6364d64da93c367694
eb74d35https://github.com/matplotlib/matplotlib/pull/17895/commits/eb74d35cebcb3ee95b957a6364d64da93c367694
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Fix issue with large PNG images in PDF.https://github.com/matplotlib/matplotlib/pull/17895/commits/eabfc26c5ab346924505b16e61c2774e3f73a515
eabfc26https://github.com/matplotlib/matplotlib/pull/17895/commits/eabfc26c5ab346924505b16e61c2774e3f73a515
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backend: pdf https://github.com/matplotlib/matplotlib/issues?q=state%3Aopen%20label%3A%22backend%3A%20pdf%22
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Increase tolerance so subpixel issue doesn't cause test failure.https://github.com/matplotlib/matplotlib/pull/17895/commits/ad16cb66a39b0204fa7415ca60483a42655fc8f5
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[Bug]: pdf export for large image sizes results in wrong colors #25806 https://github.com/matplotlib/matplotlib/issues/25806
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