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Add JPEG XL plugin via optional imagecodecs - #10215
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Ram-Pavith wants to merge 3 commits into
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Ram-Pavith wants to merge 3 commits into
Ram-Pavith wants to merge 3 commits into
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radarhere
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Oct 15, 2026
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Can I ask, trying to understand the perspective - what is the advantage of including this over using the external pillow-jxl-plugin? To me, it seems like a choice of which third-party package you need to install in addition to Pillow - |
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Adds JPEG XL support via a new JxlImagePlugin (open/save for .jxl), backed by the optional imagecodecs package which bundles libjxl (the same approach as the external pillow-jxl-plugin).
Without imagecodecs the plugin raises a clear "JPEG XL support not installed" error. Includes Tests/test_file_jxl.py (skips without imagecodecs).
Verified against Pillow 12.3 + imagecodecs: saving and reopening a sample is lossless pixel-exact. Note the earlier libjxl C-plugin PR (#7848) was closed; this is a pure-Python alternative for discussion.