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OpenEXR
OpenEXR is a high dynamic-range (HDR) image file format developed by Industrial Light & Magic. It is used on all motion pictures currently in production, and is now ILM's main image file format. The package includes the following libraries and tools: IlmImf, Half, Imath, exrdisplay, exrdisplay, exrheader, exrstdattr, exrmaketiled, exrenvmap, and exrmakepreview.
OpenEXR's has a higher dynamic range and color precision than existing 8- and 10-bit image file formats. It supports 16-bit floating-point, 32-bit floating-point, and 32-bit integer pixels. It includes multiple lossless image compression algorithms, some of which can achieve 2:1 lossless compression ratios on images with film grain. New compression codecs and image types can be added by extending its C++ classes. New image attributes can be added to OpenEXR image headers without affecting backward compatibility.
Last updated 15 Jul, 2004
About
Related Projects
Subprograms
IlmImf, Half, Imath, exrdisplay, exrdisplay, exrheader, exrstdattr, exrmaketiled, exrenvmap, exrmakepreview
Versions
1.2.1
1.2.1 stable released 2004-06-05
- Released: 5 Jun, 2004
- Code Maturity: Stable
- Source Archive: http://savannah.nongnu.org/download/openexr/Ope...
- Licenses: BSD_3Clause
- Interfaces: Library
User Community and Support
Developer API guide available in HTML format from http://www.openexr.com/api.html; Developer API guide available in printable format from http://www.openexr.com/api.print.html