excise(1)                                                            excise(1)



NAME
       excise - Extracts images from sepcified areas in an image file

SYNOPSIS
       excise

DESCRIPTION
       Excise will chop out pieces from an image file, at positions specified
       in a file of coordinates.  The file consists of three integer index
       coordinates per position (x, y, z), such as is put out by
       Model2point.  The centers of the excised pieces can be offset from
       the point coordinates by specified amounts.  If a piece extends beyond
       the edge of the original image, it will be padded with the mean inten-
       sity of the input file.

       The inputs are:

       Input image file
       Name of piece list file if image is a montage; otherwise Return
       Name of file of point coordinates
       Name of output file for pieces
       X and Y dimensions of the output file
       X and Y offsets, which will be added to the point coordinates to
          obtain the coordinates of the center of each output piece

       The program can extract pieces from a montaged image file, but it will
       not do so properly if a piece falls in the overlap zone between montage
       frames.  It would have to be modified to do this properly.

HISTORY
       Written by David Mastronarde, 3/4/91

BUGS
       Email bug reports to mast at colorado dot edu.



BL3DEMC                              4.7.3                           excise(1)