OpenEXR¶
OpenEXR provides the specification and reference implementation of the EXR file format, the professional-grade image storage format of the motion picture industry.
The purpose of EXR format is to accurately and efficiently represent high-dynamic-range scene-linear image data and associated metadata, with strong support for multi-part, multi-channel use cases.
OpenEXR is widely used in host application software where accuracy is critical, such as photorealistic rendering, texture access, image compositing, deep compositing, and DI.
OpenEXR is a project of the Academy Software Foundation.
Latest News¶
OpenEXR v3.2.3 is released and available for download from v3.2.3.
Patch release with various build/bug/documentation fixes:
Fix
bswap
on NetBSDFix issue with decompressing fp32 dwa files
Support cmake config for
libdeflate
updated security policy
miscelleneous website improvements
This release also addresses several recent fuzz/security issues, including:
OSS-fuzz 66676 Null-dereference in Imf_3_3::realloc_deepdata
OSS-fuzz 66612 Null-dereference in Imf_3_3::realloc_deepdata
This release also formally adopts the process of publishing openexr python wheels to pypi.org.
This release also introduces the process of signing release artifacts via sigstore.
Imath¶
The OpenEXR project includes Imath, a basic, light-weight, and efficient C++ representation of 2D and 3D vectors and matrices and other simple but useful mathematical objects, functions, and data types common in computer graphics applications, including the half 16-bit floating-point type.
Imath also includes optional python bindings for all types and functions, including optimized implementations of vector and matrix arrays.
Quick Start¶
For a simple program that uses the C++ API to read and write a .exr
file, see the
Hello, World examples.
Community¶
Ask a question:
Email: openexr-dev@lists.aswf.io
Slack: academysoftwarefdn#openexr
Attend a meeting:
Technical Steering Committee meetings are open to the public, fortnightly on Thursdays, 1:30pm Pacific Time.
Meeting Notes: https://wiki.aswf.io/display/OEXR/TSC+Meetings
Report a bug:
Submit an Issue: https://github.com/AcademySoftwareFoundation/openexr/issues
Report a security vulnerability:
Email security@openexr.com
Contribute a Fix, Feature, or Improvement:
Read the Contribution Guidelines and Code of Conduct
Sign the Contributor License Agreement
Submit a Pull Request: https://github.com/AcademySoftwareFoundation/openexr/pulls
Resources¶
Reference images: https://github.com/AcademySoftwareFoundation/openexr-images
Security policy: SECURITY.md
Release notes: CHANGES.md
Contributors: CONTRIBUTORS.md
Porting Guide: OpenEXR/Imath 2.x to 3.x Porting Guide