openexr: openexr (OpenEXR High Definition Image Library) openexr: openexr: OpenEXR is a high dynamic-range (HDR) image file format developed by openexr: Industrial Light & Magic for use in computer imaging applications. It openexr: features higher dynamic range and color precision than existing 8- and openexr: 10-bit image file formats, and multiple lossless image compression openexr: algorithms. The OpenEXR software distribution is now licensed under openexr: the modified BSD license. openexr: openexr: openexr: