Nrrd ("nearly raw raster data") is a library and file format for the representation and processing of n-dimensional raster data. It is intended to support scientific visualization and image processing applications.[1]

Utah Nrrd Utilities

The command-line tool unu (Utah Nrrd Utilities) is used for the manipulation and management of nrrd files.[1]

References

  1. ^ a b Aja-Fernández, Santiago; de Luis Garcia, Rodrigo; Tao, Dacheng; Li, Xuelong (2009). Tensors in Image Processing and Computer Vision. Advances in Computer Vision and Pattern Recognition. Springer Science & Business Media. ISBN 9781848822993.
source: https://en.wikipedia.org/wiki/Nearly_raw_raster_data