AcademySoftwareFoundation/openexr v3.5.2

on GitHub

Patch release that introduces the use of OpenJPH's built-in LUT to apply the decode/encode transfer function for lossy LJ2K compression.

⚠️ WARNING: EXR files written by OpenEXR v3.5.0 and v3.5.1 using lossy LJ2K compression lack the LUT in their codestream and should be regenerated. This v3.5.2 release includes a backwards compatibility fallback so that such files can be successfully decoded, but for best results, please regenerate any files using LJ2K written by v3.5.0 and v3.5.1. Note that this was incorrectly reported as being included in v3.5.0.

Also in this release:

• Prebuilt wheels for Python 3.14.
• Fix for a bug when statically linking and libdeflate, zstd, or OpenJPH is found via pkg-config rather than CMake config (#2673).
• Pin the IMATH_TAG to v3.2.3; it was previously incorrectly set to main.
• Pin the JPEG 2000 progression order to RPCL and adds TLM markers to allow efficient random access to resolution layers for J2K compression (#2672)
• Fix for a failure case in exrcheck involving large images (#2688)

See CHANGES.md for more details.

Contributors