A minicomputer system for image processing of electron micrographs

This paper describes how a PDP 11/34A computer system was set up to handle research problems in computer image processing of electron micrographs. This system is referred to as CIPRES, for Computer Image Processing and Reconstruction System (pronounced the same as cypress, the name of an evergreen tree). The RSX-11M operating system is used. Various execution speeds are given. For instance, a disk-based fast Fourier transform or FFT (complex to complex, 128 X 128 pixels) runs in three minutes. This report may be useful to anyone wishing to set up a similar computer system.