OpenEXR

File Format
Name	OpenEXR
Ontology	Electronic File Formats Graphics OpenEXR
Extension(s)	.exr
Released	2003

OpenEXR (also known as EXR or IlmImf) is a raster image file format developed by Industrial Light & Magic. It supports high dynamic range images. It usually uses 16-bit "half precision" floating point samples, though other sample formats are also supported.

"OpenEXR" is also the name of the open source C++ library associated with the format.

Identification

Files start with bytes 76 2F 31 01.

Software

• OpenEXR library: OpenEXR Downloads → openexr-x.x.x.tar.gz. Includes sample OpenEXR files for testing.

Links

• OpenEXR home page
• Wikipedia article