32-bit image file format derived by Industrial Light and Magic (ILM) movie effects company.
Supports 32-bit floating-point data, which will contain more color / luminance data than the human eye can perceive.
For purposes of this research, these OpenEXR images will be non-tone-mapped.
In working with Agisoft’s PhotoScan software I have compared tone mapped output (TIFFs) and non-tone-mapped (OpenEXRs).
Tone mapped images seem to work better for texture maps.
In terms of geometry derivation, I need to conduct more evaluations