.. index:: NRRD (Nearly Raw Raster Data) .. index:: .nrrd, .nhdr, .raw, .txt NRRD (Nearly Raw Raster Data) =============================================================================== Extensions: .nrrd, .nhdr, .raw, .txt Developer: `Teem developers `_ **Support** BSD-licensed: |yes| Export: |no| Officially Supported Versions: Reader: NRRDReader (:bsd-reader:`Source Code `, :doc:`Supported Metadata Fields `) Freely Available Software: - `nrrd (NRRD reference library) `_ Sample Datasets: - `Diffusion tensor MRI datasets `_ We currently have: * an `nrrd specification document `_ (v1.9, from 2005 December 24, in HTML) * a few nrrd datasets * `public sample images `__ **Ratings** Pixels: |Very good| Metadata: |Very good| Openness: |Outstanding| Presence: |Fair| Utility: |Very good|