geocmp

This will determine a set of orthogonal basis images from a set of aligned particles

geocmp <images> <basis> [n=<n basis>] [mask=<radius>] [powsort]

Parameters:


<images>Input file, images to be analyzed
<basis>Output file, set of orthogonal basis images
[n=<n basis>]Number of basis images to output (<= number of input images)
[mask=<radius>]Mask radius in pixels (use the smallest reasonable value)
[powsort]Sort by basis power instead of geometry

Usage:

geodcmp proj.hed basis.hed

Description

This program is designed to produce a set of orthogonal basis images to use for noise reduction on raw particles. Typically this program will be used on a set of projections covering the asymmetric triangle, but with no in-plane rotation. The resulting basis images can then be applied to an (aligned) noisy image to act as a sort of filter.


EMAN Manual page, generated Tue Oct 8 21:38:48 2002