Read SPIDER files

Read and write files in SPIDER format

SPIDER is a free image processing system for electron microscopy. It is used for three-dimensional reconstruction of single particle macromolecules, multivariate statistical classification, and electron tomography. See the extensive documentation and many available techniques at www.wadsworth.org/spider_doc/spider/docs/master.html

SPIDER has its own binary format for images and volumes. The SPIDER M-file collection lets users read SPIDER images, volumes, image stacks, and textual document files directly into Matlab data types for processing and visualization.